| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 |   "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 |   <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 |   %general-entities;
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| 6 | ]>
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| 7 | 
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| 8 | <sect1 id="ch-system-util-linux" role="wrap">
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| 9 |   <?dbhtml filename="util-linux.html"?>
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| 10 | 
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| 11 |   <title>Util-linux-&util-linux-version;</title>
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| 12 | 
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| 13 |   <indexterm zone="ch-system-util-linux">
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| 14 |     <primary sortas="a-Util-linux">Util-linux</primary>
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| 15 |   </indexterm>
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| 16 | 
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| 17 |   <sect2 role="package">
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| 18 |     <title/>
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| 19 | 
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| 20 |     <para>The Util-linux package contains miscellaneous utility programs.
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| 21 |     Among them are utilities for handling file systems, consoles, partitions,
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| 22 |     and messages.</para>
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| 23 | 
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| 24 | 
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| 25 |   </sect2>
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| 26 | 
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| 27 |   <sect2 id="fhs-util-linux" role="installation">
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| 28 |     <title>FHS compliance notes</title>
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| 29 | 
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| 30 |     <para>The FHS recommends using the <filename
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| 31 |     class="directory">/var/lib/hwclock</filename> directory instead of the
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| 32 |     usual <filename class="directory">/etc</filename> directory as the
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| 33 |     location for the <filename>adjtime</filename> file. To make the
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| 34 |     <command>hwclock</command> program FHS-compliant, run the following:</para>
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| 35 | 
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| 36 | <screen><userinput>sed -i 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
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| 37 |     hwclock/hwclock.c
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| 38 | mkdir -pv /var/lib/hwclock</userinput></screen>
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| 39 | 
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| 40 |   </sect2>
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| 41 | 
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| 42 |   <sect2 role="installation">
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| 43 |     <title>Installation of Util-linux</title>
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| 44 | 
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| 45 |     <para os="p1">Util-linux fails to compile against newer versions of
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| 46 |     Linux kernel headers. The following patch properly fixes this issue:</para>
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| 47 | 
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| 48 | <screen os="p2"><userinput>patch -Np1 -i ../&util-linux-cramfs-patch;</userinput></screen>
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| 49 | 
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| 50 |     <para os="p3">The following patch fixes build issues with GCC &gcc-version;:</para>
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| 51 | 
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| 52 | <screen os="p4"><userinput>patch -Np1 -i ../&util-linux-gcc4_fixes-patch;</userinput></screen>
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| 53 | 
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| 54 |     <para os="p5">The following patch fixes swapon.c, it tries to find the variable R_OK, but
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| 55 |     the header that has R_OK is not included:</para>
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| 56 | 
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| 57 | <screen os="p6"><userinput>patch -Np1 -i ../&util-linux-missing_header-patch;</userinput></screen>
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| 58 | 
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| 59 |     <para os="a">Prepare Util-linux for compilation:</para>
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| 60 | 
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| 61 | <screen os="b"><userinput>./configure</userinput></screen>
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| 62 | 
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| 63 |     <para os="c">Compile the package:</para>
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| 64 | 
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| 65 | <screen os="d"><userinput>make HAVE_KILL=yes HAVE_SLN=yes</userinput></screen>
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| 66 | 
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| 67 |     <variablelist os="e">
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| 68 |       <title>The meaning of the make parameters:</title>
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| 69 | 
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| 70 |       <varlistentry os="e1">
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| 71 |         <term><parameter>HAVE_KILL=yes</parameter></term>
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| 72 |         <listitem>
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| 73 |           <para>This prevents the <command>kill</command> program (already
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| 74 |           installed by Procps) from being built and installed again.</para>
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| 75 |         </listitem>
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| 76 |       </varlistentry>
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| 77 | 
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| 78 |       <varlistentry os="e2">
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| 79 |         <term><parameter>HAVE_SLN=yes</parameter></term>
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| 80 |         <listitem>
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| 81 |           <para>This prevents the <command>sln</command> program (a
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| 82 |           statically linked version of <command>ln</command> already installed
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| 83 |           by Glibc) from being built and installed again.</para>
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| 84 |         </listitem>
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| 85 |       </varlistentry>
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| 86 | 
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| 87 |     </variablelist>
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| 88 | 
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| 89 |     <para os="f">This package does not come with a test suite.</para>
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| 90 | 
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| 91 |     <para os="g">Install the package and move the <command>logger</command> binary
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| 92 |     to <filename class="directory">/bin</filename> as it is needed by the
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| 93 |     CLFS-Bootscripts package:</para>
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| 94 | 
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| 95 | <screen os="h"><userinput>make HAVE_KILL=yes HAVE_SLN=yes install
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| 96 | mv -v /usr/bin/logger /bin</userinput></screen>
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| 97 | 
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| 98 |   </sect2>
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| 99 | 
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| 100 |   <sect2 id="contents-util-linux" role="content">
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| 101 |     <title>Contents of Util-linux</title>
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| 102 | 
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| 103 |     <segmentedlist>
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| 104 |       <segtitle>Installed programs</segtitle>
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| 105 | 
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| 106 |       <seglistitem>
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| 107 |         <seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
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| 108 |         colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat,
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| 109 |         fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
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| 110 |         ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs,
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| 111 |         mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root,
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| 112 |         ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev,
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| 113 |         rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk,
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| 114 |         swapoff (link to swapon), swapon, tailf, tunelp, ul, umount, vidmode
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| 115 |         (link to rdev), whereis, and write</seg>
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| 116 |       </seglistitem>
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| 117 |     </segmentedlist>
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| 118 | 
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| 119 |     <variablelist>
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| 120 |       <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 121 |       <?dbfo list-presentation="list"?>
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| 122 |       <?dbhtml list-presentation="table"?>
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| 123 | 
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| 124 |       <varlistentry id="agetty">
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| 125 |         <term><command>agetty</command></term>
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| 126 |         <listitem>
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| 127 |           <para>Opens a tty port, prompts for a login name,
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| 128 |           and then invokes the <command>login</command> program</para>
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| 129 |           <indexterm zone="ch-system-util-linux agetty">
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| 130 |             <primary sortas="b-agetty">agetty</primary>
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| 131 |           </indexterm>
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| 132 |         </listitem>
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| 133 |       </varlistentry>
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| 134 | 
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| 135 |       <varlistentry id="arch">
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| 136 |         <term><command>arch</command></term>
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| 137 |         <listitem>
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| 138 |           <para>Reports the machine's architecture</para>
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| 139 |           <indexterm zone="ch-system-util-linux arch">
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| 140 |             <primary sortas="b-arch">arch</primary>
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| 141 |           </indexterm>
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| 142 |         </listitem>
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| 143 |       </varlistentry>
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| 144 | 
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| 145 |       <varlistentry id="blockdev">
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| 146 |         <term><command>blockdev</command></term>
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| 147 |         <listitem>
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| 148 |           <para>Allows users to call block device ioctls from the command
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| 149 |           line</para>
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| 150 |           <indexterm zone="ch-system-util-linux blockdev">
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| 151 |             <primary sortas="b-blockdev">blockdev</primary>
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| 152 |           </indexterm>
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| 153 |         </listitem>
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| 154 |       </varlistentry>
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| 155 | 
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| 156 |       <varlistentry id="cal">
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| 157 |         <term><command>cal</command></term>
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| 158 |         <listitem>
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| 159 |           <para>Displays a simple calendar</para>
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| 160 |           <indexterm zone="ch-system-util-linux cal">
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| 161 |             <primary sortas="b-cal">cal</primary>
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| 162 |           </indexterm>
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| 163 |         </listitem>
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| 164 |       </varlistentry>
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| 165 | 
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| 166 |       <varlistentry id="cfdisk">
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| 167 |         <term><command>cfdisk</command></term>
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| 168 |         <listitem>
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| 169 |           <para>Manipulates the partition table of the given device</para>
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| 170 |           <indexterm zone="ch-system-util-linux cfdisk">
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| 171 |             <primary sortas="b-cfdisk">cfdisk</primary>
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| 172 |           </indexterm>
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| 173 |         </listitem>
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| 174 |       </varlistentry>
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| 175 | 
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| 176 |       <varlistentry id="chkdupexe">
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| 177 |         <term><command>chkdupexe</command></term>
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| 178 |         <listitem>
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| 179 |           <para>Finds duplicate executables</para>
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| 180 |           <indexterm zone="ch-system-util-linux chkdupexe">
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| 181 |             <primary sortas="b-chkdupexe">chkdupexe</primary>
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| 182 |           </indexterm>
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| 183 |         </listitem>
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| 184 |       </varlistentry>
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| 185 | 
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| 186 |       <varlistentry id="col">
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| 187 |         <term><command>col</command></term>
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| 188 |         <listitem>
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| 189 |           <para>Filters out reverse line feeds</para>
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| 190 |           <indexterm zone="ch-system-util-linux col">
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| 191 |             <primary sortas="b-col">col</primary>
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| 192 |           </indexterm>
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| 193 |         </listitem>
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| 194 |       </varlistentry>
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| 195 | 
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| 196 |       <varlistentry id="colcrt">
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| 197 |         <term><command>colcrt</command></term>
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| 198 |         <listitem>
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| 199 |           <para>Filters <command>nroff</command> output for terminals
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| 200 |           that lack some capabilities, such as overstriking and half-lines</para>
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| 201 |           <indexterm zone="ch-system-util-linux colcrt">
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| 202 |             <primary sortas="b-colcrt">colcrt</primary>
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| 203 |           </indexterm>
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| 204 |         </listitem>
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| 205 |       </varlistentry>
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| 206 | 
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| 207 |       <varlistentry id="colrm">
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| 208 |         <term><command>colrm</command></term>
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| 209 |         <listitem>
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| 210 |           <para>Filters out the given columns</para>
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| 211 |           <indexterm zone="ch-system-util-linux colrm">
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| 212 |             <primary sortas="b-colrm">colrm</primary>
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| 213 |           </indexterm>
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| 214 |         </listitem>
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| 215 |       </varlistentry>
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| 216 | 
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| 217 |       <varlistentry id="column">
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| 218 |         <term><command>column</command></term>
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| 219 |         <listitem>
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| 220 |           <para>Formats a given file into multiple columns</para>
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| 221 |           <indexterm zone="ch-system-util-linux column">
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| 222 |             <primary sortas="b-column">column</primary>
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| 223 |           </indexterm>
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| 224 |         </listitem>
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| 225 |       </varlistentry>
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| 226 | 
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| 227 |       <varlistentry id="ctrlaltdel">
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| 228 |         <term><command>ctrlaltdel</command></term>
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| 229 |         <listitem>
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| 230 |           <para>Sets the function of the Ctrl+Alt+Del key combination to a
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| 231 |           hard or a soft reset</para>
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| 232 |           <indexterm zone="ch-system-util-linux ctrlaltdel">
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| 233 |             <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
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| 234 |           </indexterm>
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| 235 |         </listitem>
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| 236 |       </varlistentry>
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| 237 | 
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| 238 |       <varlistentry id="cytune">
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| 239 |         <term><command>cytune</command></term>
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| 240 |         <listitem>
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| 241 |           <para>Tunes the parameters of the serial line drivers for
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| 242 |           Cyclades cards</para>
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| 243 |           <indexterm zone="ch-system-util-linux cytune">
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| 244 |             <primary sortas="b-cytune">cytune</primary>
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| 245 |           </indexterm>
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| 246 |         </listitem>
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| 247 |       </varlistentry>
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| 248 | 
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| 249 |       <varlistentry id="ddate">
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| 250 |         <term><command>ddate</command></term>
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| 251 |         <listitem>
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| 252 |           <para>Gives the Discordian date or converts the given Gregorian date
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| 253 |           to a Discordian one</para>
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| 254 |           <indexterm zone="ch-system-util-linux ddate">
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| 255 |             <primary sortas="b-ddate">ddate</primary>
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| 256 |           </indexterm>
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| 257 |         </listitem>
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| 258 |       </varlistentry>
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| 259 | 
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| 260 |       <varlistentry id="dmesg">
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| 261 |         <term><command>dmesg</command></term>
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| 262 |         <listitem>
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| 263 |           <para>Dumps the kernel boot messages</para>
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| 264 |           <indexterm zone="ch-system-util-linux dmesg">
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| 265 |             <primary sortas="b-dmesg">dmesg</primary>
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| 266 |           </indexterm>
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| 267 |         </listitem>
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| 268 |       </varlistentry>
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| 269 | 
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| 270 |       <varlistentry id="elvtune">
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| 271 |         <term><command>elvtune</command></term>
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| 272 |         <listitem>
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| 273 |           <para>Tunes the performance and interactivity of a block
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| 274 |           device</para>
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| 275 |           <indexterm zone="ch-system-util-linux elvtune">
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| 276 |             <primary sortas="b-elvtune">elvtune</primary>
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| 277 |           </indexterm>
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| 278 |         </listitem>
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| 279 |       </varlistentry>
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| 280 | 
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| 281 |       <varlistentry id="fdformat">
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| 282 |         <term><command>fdformat</command></term>
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| 283 |         <listitem>
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| 284 |           <para>Low-level formats a floppy disk</para>
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| 285 |           <indexterm zone="ch-system-util-linux fdformat">
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| 286 |             <primary sortas="b-fdformat">fdformat</primary>
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| 287 |           </indexterm>
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| 288 |         </listitem>
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| 289 |       </varlistentry>
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| 290 | 
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| 291 |       <varlistentry id="fdisk">
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| 292 |         <term><command>fdisk</command></term>
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| 293 |         <listitem>
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| 294 |           <para>Manipulates the partition table of the given device</para>
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| 295 |           <indexterm zone="ch-system-util-linux fdisk">
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| 296 |             <primary sortas="b-fdisk">fdisk</primary>
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| 297 |           </indexterm>
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| 298 |         </listitem>
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| 299 |       </varlistentry>
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| 300 | 
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| 301 |       <varlistentry id="flock">
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| 302 |         <term><command>flock</command></term>
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| 303 |         <listitem>
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| 304 |           <para>Acquires a file lock and then executes a command with the lock
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| 305 |           held</para>
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| 306 |           <indexterm zone="ch-system-util-linux flock">
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| 307 |             <primary sortas="b-flock">flock</primary>
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| 308 |           </indexterm>
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| 309 |         </listitem>
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| 310 |       </varlistentry>
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| 311 | 
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| 312 |       <varlistentry id="fsck.cramfs">
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| 313 |         <term><command>fsck.cramfs</command></term>
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| 314 |         <listitem>
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| 315 |           <para>Performs a consistency check on the Cramfs file system on the
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| 316 |           given device</para>
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| 317 |           <indexterm zone="ch-system-util-linux fsck.cramfs">
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| 318 |             <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
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| 319 |           </indexterm>
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| 320 |         </listitem>
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| 321 |       </varlistentry>
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| 322 | 
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| 323 |       <varlistentry id="fsck.minix">
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| 324 |         <term><command>fsck.minix</command></term>
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| 325 |         <listitem>
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| 326 |           <para>Performs a consistency check on the Minix file system on the
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| 327 |           given device</para>
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| 328 |           <indexterm zone="ch-system-util-linux fsck.minix">
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| 329 |             <primary sortas="b-fsck.minix">fsck.minix</primary>
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| 330 |           </indexterm>
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| 331 |         </listitem>
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| 332 |       </varlistentry>
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| 333 | 
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| 334 |       <varlistentry id="getopt">
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| 335 |         <term><command>getopt</command></term>
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| 336 |         <listitem>
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| 337 |           <para>Parses options in the given command line</para>
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| 338 |           <indexterm zone="ch-system-util-linux getopt">
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| 339 |             <primary sortas="b-getopt">getopt</primary>
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| 340 |           </indexterm>
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| 341 |         </listitem>
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| 342 |       </varlistentry>
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| 343 | 
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| 344 |       <varlistentry id="hexdump">
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| 345 |         <term><command>hexdump</command></term>
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| 346 |         <listitem>
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| 347 |           <para>Dumps the given file in hexadecimal or in another given
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| 348 |           format</para>
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| 349 |           <indexterm zone="ch-system-util-linux hexdump">
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| 350 |             <primary sortas="b-hexdump">hexdump</primary>
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| 351 |           </indexterm>
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| 352 |         </listitem>
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| 353 |       </varlistentry>
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| 354 | 
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| 355 |       <varlistentry id="hwclock">
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| 356 |         <term><command>hwclock</command></term>
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| 357 |         <listitem>
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| 358 |           <para>Reads or sets the system's hardware clock, also called
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| 359 |           the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
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| 360 |           clock</para>
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| 361 |           <indexterm zone="ch-system-util-linux hwclock">
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| 362 |             <primary sortas="b-hwclock">hwclock</primary>
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| 363 |           </indexterm>
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| 364 |         </listitem>
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| 365 |       </varlistentry>
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| 366 | 
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| 367 |       <varlistentry id="ipcrm">
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| 368 |         <term><command>ipcrm</command></term>
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| 369 |         <listitem>
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| 370 |           <para>Removes the given Inter-Process Communication (IPC) resource</para>
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| 371 |           <indexterm zone="ch-system-util-linux ipcrm">
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| 372 |             <primary sortas="b-ipcrm">ipcrm</primary>
 | 
|---|
| 373 |           </indexterm>
 | 
|---|
| 374 |         </listitem>
 | 
|---|
| 375 |       </varlistentry>
 | 
|---|
| 376 | 
 | 
|---|
| 377 |       <varlistentry id="ipcs">
 | 
|---|
| 378 |         <term><command>ipcs</command></term>
 | 
|---|
| 379 |         <listitem>
 | 
|---|
| 380 |           <para>Provides IPC status information</para>
 | 
|---|
| 381 |           <indexterm zone="ch-system-util-linux ipcs">
 | 
|---|
| 382 |             <primary sortas="b-ipcs">ipcs</primary>
 | 
|---|
| 383 |           </indexterm>
 | 
|---|
| 384 |         </listitem>
 | 
|---|
| 385 |       </varlistentry>
 | 
|---|
| 386 | 
 | 
|---|
| 387 |       <varlistentry id="isosize">
 | 
|---|
| 388 |         <term><command>isosize</command></term>
 | 
|---|
| 389 |         <listitem>
 | 
|---|
| 390 |           <para>Reports the size of an iso9660 file system</para>
 | 
|---|
| 391 |           <indexterm zone="ch-system-util-linux isosize">
 | 
|---|
| 392 |             <primary sortas="b-isosize">isosize</primary>
 | 
|---|
| 393 |           </indexterm>
 | 
|---|
| 394 |         </listitem>
 | 
|---|
| 395 |       </varlistentry>
 | 
|---|
| 396 | 
 | 
|---|
| 397 |       <varlistentry id="line">
 | 
|---|
| 398 |         <term><command>line</command></term>
 | 
|---|
| 399 |         <listitem>
 | 
|---|
| 400 |           <para>Copies a single line</para>
 | 
|---|
| 401 |           <indexterm zone="ch-system-util-linux line">
 | 
|---|
| 402 |             <primary sortas="b-line">line</primary>
 | 
|---|
| 403 |           </indexterm>
 | 
|---|
| 404 |         </listitem>
 | 
|---|
| 405 |       </varlistentry>
 | 
|---|
| 406 | 
 | 
|---|
| 407 |       <varlistentry id="logger">
 | 
|---|
| 408 |         <term><command>logger</command></term>
 | 
|---|
| 409 |         <listitem>
 | 
|---|
| 410 |           <para>Enters the given message into the system log</para>
 | 
|---|
| 411 |           <indexterm zone="ch-system-util-linux logger">
 | 
|---|
| 412 |             <primary sortas="b-logger">logger</primary>
 | 
|---|
| 413 |           </indexterm>
 | 
|---|
| 414 |         </listitem>
 | 
|---|
| 415 |       </varlistentry>
 | 
|---|
| 416 | 
 | 
|---|
| 417 |       <varlistentry id="look">
 | 
|---|
| 418 |         <term><command>look</command></term>
 | 
|---|
| 419 |         <listitem>
 | 
|---|
| 420 |           <para>Displays lines that begin with the given string</para>
 | 
|---|
| 421 |           <indexterm zone="ch-system-util-linux look">
 | 
|---|
| 422 |             <primary sortas="b-look">look</primary>
 | 
|---|
| 423 |           </indexterm>
 | 
|---|
| 424 |         </listitem>
 | 
|---|
| 425 |       </varlistentry>
 | 
|---|
| 426 | 
 | 
|---|
| 427 |       <varlistentry id="losetup">
 | 
|---|
| 428 |         <term><command>losetup</command></term>
 | 
|---|
| 429 |         <listitem>
 | 
|---|
| 430 |           <para>Sets up and controls loop devices</para>
 | 
|---|
| 431 |           <indexterm zone="ch-system-util-linux losetup">
 | 
|---|
| 432 |             <primary sortas="b-losetup">losetup</primary>
 | 
|---|
| 433 |           </indexterm>
 | 
|---|
| 434 |         </listitem>
 | 
|---|
| 435 |       </varlistentry>
 | 
|---|
| 436 | 
 | 
|---|
| 437 |       <varlistentry id="mcookie">
 | 
|---|
| 438 |         <term><command>mcookie</command></term>
 | 
|---|
| 439 |         <listitem>
 | 
|---|
| 440 |           <para>Generates magic cookies (128-bit random hexadecimal numbers) for
 | 
|---|
| 441 |           <command>xauth</command></para>
 | 
|---|
| 442 |           <indexterm zone="ch-system-util-linux mcookie">
 | 
|---|
| 443 |             <primary sortas="b-mcookie">mcookie</primary>
 | 
|---|
| 444 |           </indexterm>
 | 
|---|
| 445 |         </listitem>
 | 
|---|
| 446 |       </varlistentry>
 | 
|---|
| 447 | 
 | 
|---|
| 448 |       <varlistentry id="mkfs">
 | 
|---|
| 449 |         <term><command>mkfs</command></term>
 | 
|---|
| 450 |         <listitem>
 | 
|---|
| 451 |           <para>Builds a file system on a device (usually a hard disk
 | 
|---|
| 452 |           partition)</para>
 | 
|---|
| 453 |           <indexterm zone="ch-system-util-linux mkfs">
 | 
|---|
| 454 |             <primary sortas="b-mkfs">mkfs</primary>
 | 
|---|
| 455 |           </indexterm>
 | 
|---|
| 456 |         </listitem>
 | 
|---|
| 457 |       </varlistentry>
 | 
|---|
| 458 | 
 | 
|---|
| 459 |       <varlistentry id="mkfs.bfs">
 | 
|---|
| 460 |         <term><command>mkfs.bfs</command></term>
 | 
|---|
| 461 |         <listitem>
 | 
|---|
| 462 |           <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
 | 
|---|
| 463 |           <indexterm zone="ch-system-util-linux mkfs.bfs">
 | 
|---|
| 464 |             <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
 | 
|---|
| 465 |           </indexterm>
 | 
|---|
| 466 |         </listitem>
 | 
|---|
| 467 |       </varlistentry>
 | 
|---|
| 468 | 
 | 
|---|
| 469 |       <varlistentry id="mkfs.cramfs">
 | 
|---|
| 470 |         <term><command>mkfs.cramfs</command></term>
 | 
|---|
| 471 |         <listitem>
 | 
|---|
| 472 |           <para>Creates a cramfs file system</para>
 | 
|---|
| 473 |           <indexterm zone="ch-system-util-linux mkfs.cramfs">
 | 
|---|
| 474 |             <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
 | 
|---|
| 475 |           </indexterm>
 | 
|---|
| 476 |         </listitem>
 | 
|---|
| 477 |       </varlistentry>
 | 
|---|
| 478 | 
 | 
|---|
| 479 |       <varlistentry id="mkfs.minix">
 | 
|---|
| 480 |         <term><command>mkfs.minix</command></term>
 | 
|---|
| 481 |         <listitem>
 | 
|---|
| 482 |           <para>Creates a Minix file system</para>
 | 
|---|
| 483 |           <indexterm zone="ch-system-util-linux mkfs.minix">
 | 
|---|
| 484 |             <primary sortas="b-mkfs.minix">mkfs.minix</primary>
 | 
|---|
| 485 |           </indexterm>
 | 
|---|
| 486 |         </listitem>
 | 
|---|
| 487 |       </varlistentry>
 | 
|---|
| 488 | 
 | 
|---|
| 489 |       <varlistentry id="mkswap">
 | 
|---|
| 490 |         <term><command>mkswap</command></term>
 | 
|---|
| 491 |         <listitem>
 | 
|---|
| 492 |           <para>Initializes the given device or file to be used as a swap
 | 
|---|
| 493 |           area</para>
 | 
|---|
| 494 |           <indexterm zone="ch-system-util-linux mkswap">
 | 
|---|
| 495 |             <primary sortas="b-mkswap">mkswap</primary>
 | 
|---|
| 496 |           </indexterm>
 | 
|---|
| 497 |         </listitem>
 | 
|---|
| 498 |       </varlistentry>
 | 
|---|
| 499 | 
 | 
|---|
| 500 |       <varlistentry id="more">
 | 
|---|
| 501 |         <term><command>more</command></term>
 | 
|---|
| 502 |         <listitem>
 | 
|---|
| 503 |           <para>A filter for paging through text one screen at a time</para>
 | 
|---|
| 504 |           <indexterm zone="ch-system-util-linux more">
 | 
|---|
| 505 |             <primary sortas="b-more">more</primary>
 | 
|---|
| 506 |           </indexterm>
 | 
|---|
| 507 |         </listitem>
 | 
|---|
| 508 |       </varlistentry>
 | 
|---|
| 509 | 
 | 
|---|
| 510 |       <varlistentry id="mount">
 | 
|---|
| 511 |         <term><command>mount</command></term>
 | 
|---|
| 512 |         <listitem>
 | 
|---|
| 513 |           <para>Attaches the file system on the given device to a specified
 | 
|---|
| 514 |           directory in the file-system tree</para>
 | 
|---|
| 515 |           <indexterm zone="ch-system-util-linux mount">
 | 
|---|
| 516 |             <primary sortas="b-mount">mount</primary>
 | 
|---|
| 517 |           </indexterm>
 | 
|---|
| 518 |         </listitem>
 | 
|---|
| 519 |       </varlistentry>
 | 
|---|
| 520 | 
 | 
|---|
| 521 |       <varlistentry id="namei">
 | 
|---|
| 522 |         <term><command>namei</command></term>
 | 
|---|
| 523 |         <listitem>
 | 
|---|
| 524 |           <para>Shows the symbolic links in the given pathnames</para>
 | 
|---|
| 525 |           <indexterm zone="ch-system-util-linux namei">
 | 
|---|
| 526 |             <primary sortas="b-namei">namei</primary>
 | 
|---|
| 527 |           </indexterm>
 | 
|---|
| 528 |         </listitem>
 | 
|---|
| 529 |       </varlistentry>
 | 
|---|
| 530 | 
 | 
|---|
| 531 |       <varlistentry id="pg">
 | 
|---|
| 532 |         <term><command>pg</command></term>
 | 
|---|
| 533 |         <listitem>
 | 
|---|
| 534 |           <para>Displays a text file one screen full at a time</para>
 | 
|---|
| 535 |           <indexterm zone="ch-system-util-linux pg">
 | 
|---|
| 536 |             <primary sortas="b-pg">pg</primary>
 | 
|---|
| 537 |           </indexterm>
 | 
|---|
| 538 |         </listitem>
 | 
|---|
| 539 |       </varlistentry>
 | 
|---|
| 540 | 
 | 
|---|
| 541 |       <varlistentry id="pivot_root">
 | 
|---|
| 542 |         <term><command>pivot_root</command></term>
 | 
|---|
| 543 |         <listitem>
 | 
|---|
| 544 |           <para>Makes the given file system the new root file system of the
 | 
|---|
| 545 |           current process</para>
 | 
|---|
| 546 |           <indexterm zone="ch-system-util-linux pivot_root">
 | 
|---|
| 547 |             <primary sortas="b-pivot_root">pivot_root</primary>
 | 
|---|
| 548 |           </indexterm>
 | 
|---|
| 549 |         </listitem>
 | 
|---|
| 550 |       </varlistentry>
 | 
|---|
| 551 | 
 | 
|---|
| 552 |       <varlistentry id="ramsize">
 | 
|---|
| 553 |         <term><command>ramsize</command></term>
 | 
|---|
| 554 |         <listitem>
 | 
|---|
| 555 |           <para>Sets the size of the RAM disk in a bootable image</para>
 | 
|---|
| 556 |           <indexterm zone="ch-system-util-linux ramsize">
 | 
|---|
| 557 |             <primary sortas="b-ramsize">ramsize</primary>
 | 
|---|
| 558 |           </indexterm>
 | 
|---|
| 559 |         </listitem>
 | 
|---|
| 560 |       </varlistentry>
 | 
|---|
| 561 | 
 | 
|---|
| 562 |       <varlistentry id="raw">
 | 
|---|
| 563 |         <term><command>raw</command></term>
 | 
|---|
| 564 |         <listitem>
 | 
|---|
| 565 |           <para>Used to bind a Linux raw character device to a block
 | 
|---|
| 566 |           device</para>
 | 
|---|
| 567 |           <indexterm zone="ch-system-util-linux raw">
 | 
|---|
| 568 |             <primary sortas="b-raw">raw</primary>
 | 
|---|
| 569 |           </indexterm>
 | 
|---|
| 570 |         </listitem>
 | 
|---|
| 571 |       </varlistentry>
 | 
|---|
| 572 | 
 | 
|---|
| 573 |       <varlistentry id="rdev">
 | 
|---|
| 574 |         <term><command>rdev</command></term>
 | 
|---|
| 575 |         <listitem>
 | 
|---|
| 576 |           <para>Queries and sets the root device, among other things, in a
 | 
|---|
| 577 |           bootable image</para>
 | 
|---|
| 578 |           <indexterm zone="ch-system-util-linux rdev">
 | 
|---|
| 579 |             <primary sortas="b-rdev">rdev</primary>
 | 
|---|
| 580 |           </indexterm>
 | 
|---|
| 581 |         </listitem>
 | 
|---|
| 582 |       </varlistentry>
 | 
|---|
| 583 | 
 | 
|---|
| 584 |       <varlistentry id="readprofile">
 | 
|---|
| 585 |         <term><command>readprofile</command></term>
 | 
|---|
| 586 |         <listitem>
 | 
|---|
| 587 |           <para>Reads kernel profiling information</para>
 | 
|---|
| 588 |           <indexterm zone="ch-system-util-linux readprofile">
 | 
|---|
| 589 |             <primary sortas="b-readprofile">readprofile</primary>
 | 
|---|
| 590 |           </indexterm>
 | 
|---|
| 591 |         </listitem>
 | 
|---|
| 592 |       </varlistentry>
 | 
|---|
| 593 | 
 | 
|---|
| 594 |       <varlistentry id="rename">
 | 
|---|
| 595 |         <term><command>rename</command></term>
 | 
|---|
| 596 |         <listitem>
 | 
|---|
| 597 |           <para>Renames the given files, replacing a given string with
 | 
|---|
| 598 |           another</para>
 | 
|---|
| 599 |           <indexterm zone="ch-system-util-linux rename">
 | 
|---|
| 600 |             <primary sortas="b-rename">rename</primary>
 | 
|---|
| 601 |           </indexterm>
 | 
|---|
| 602 |         </listitem>
 | 
|---|
| 603 |       </varlistentry>
 | 
|---|
| 604 | 
 | 
|---|
| 605 |       <varlistentry id="renice">
 | 
|---|
| 606 |         <term><command>renice</command></term>
 | 
|---|
| 607 |         <listitem>
 | 
|---|
| 608 |           <para>Alters the priority of running processes</para>
 | 
|---|
| 609 |           <indexterm zone="ch-system-util-linux renice">
 | 
|---|
| 610 |             <primary sortas="b-renice">renice</primary>
 | 
|---|
| 611 |           </indexterm>
 | 
|---|
| 612 |         </listitem>
 | 
|---|
| 613 |       </varlistentry>
 | 
|---|
| 614 | 
 | 
|---|
| 615 |       <varlistentry id="rev">
 | 
|---|
| 616 |         <term><command>rev</command></term>
 | 
|---|
| 617 |         <listitem>
 | 
|---|
| 618 |           <para>Reverses the lines of a given file</para>
 | 
|---|
| 619 |           <indexterm zone="ch-system-util-linux rev">
 | 
|---|
| 620 |             <primary sortas="b-rev">rev</primary>
 | 
|---|
| 621 |           </indexterm>
 | 
|---|
| 622 |         </listitem>
 | 
|---|
| 623 |       </varlistentry>
 | 
|---|
| 624 | 
 | 
|---|
| 625 |       <varlistentry id="rootflags">
 | 
|---|
| 626 |         <term><command>rootflags</command></term>
 | 
|---|
| 627 |         <listitem>
 | 
|---|
| 628 |           <para>Sets the rootflags in a bootable image</para>
 | 
|---|
| 629 |           <indexterm zone="ch-system-util-linux rootflags">
 | 
|---|
| 630 |             <primary sortas="b-rootflags">rootflags</primary>
 | 
|---|
| 631 |           </indexterm>
 | 
|---|
| 632 |         </listitem>
 | 
|---|
| 633 |       </varlistentry>
 | 
|---|
| 634 | 
 | 
|---|
| 635 |       <varlistentry id="script">
 | 
|---|
| 636 |         <term><command>script</command></term>
 | 
|---|
| 637 |         <listitem>
 | 
|---|
| 638 |           <para>Makes a typescript of a terminal session</para>
 | 
|---|
| 639 |           <indexterm zone="ch-system-util-linux script">
 | 
|---|
| 640 |             <primary sortas="b-script">script</primary>
 | 
|---|
| 641 |           </indexterm>
 | 
|---|
| 642 |         </listitem>
 | 
|---|
| 643 |       </varlistentry>
 | 
|---|
| 644 | 
 | 
|---|
| 645 |       <varlistentry id="setfdprm">
 | 
|---|
| 646 |         <term><command>setfdprm</command></term>
 | 
|---|
| 647 |         <listitem>
 | 
|---|
| 648 |           <para>Sets user-provided floppy disk parameters</para>
 | 
|---|
| 649 |           <indexterm zone="ch-system-util-linux setfdprm">
 | 
|---|
| 650 |             <primary sortas="b-setfdprm">setfdprm</primary>
 | 
|---|
| 651 |           </indexterm>
 | 
|---|
| 652 |         </listitem>
 | 
|---|
| 653 |       </varlistentry>
 | 
|---|
| 654 | 
 | 
|---|
| 655 |       <varlistentry id="setsid">
 | 
|---|
| 656 |         <term><command>setsid</command></term>
 | 
|---|
| 657 |         <listitem>
 | 
|---|
| 658 |           <para>Runs the given program in a new session</para>
 | 
|---|
| 659 |           <indexterm zone="ch-system-util-linux setsid">
 | 
|---|
| 660 |             <primary sortas="b-setsid">setsid</primary>
 | 
|---|
| 661 |           </indexterm>
 | 
|---|
| 662 |         </listitem>
 | 
|---|
| 663 |       </varlistentry>
 | 
|---|
| 664 | 
 | 
|---|
| 665 |       <varlistentry id="setterm">
 | 
|---|
| 666 |         <term><command>setterm</command></term>
 | 
|---|
| 667 |         <listitem>
 | 
|---|
| 668 |           <para>Sets terminal attributes</para>
 | 
|---|
| 669 |           <indexterm zone="ch-system-util-linux setterm">
 | 
|---|
| 670 |             <primary sortas="b-setterm">setterm</primary>
 | 
|---|
| 671 |           </indexterm>
 | 
|---|
| 672 |         </listitem>
 | 
|---|
| 673 |       </varlistentry>
 | 
|---|
| 674 | 
 | 
|---|
| 675 |       <varlistentry id="sfdisk">
 | 
|---|
| 676 |         <term><command>sfdisk</command></term>
 | 
|---|
| 677 |         <listitem>
 | 
|---|
| 678 |           <para>A disk partition table manipulator</para>
 | 
|---|
| 679 |           <indexterm zone="ch-system-util-linux sfdisk">
 | 
|---|
| 680 |             <primary sortas="b-sfdisk">sfdisk</primary>
 | 
|---|
| 681 |           </indexterm>
 | 
|---|
| 682 |         </listitem>
 | 
|---|
| 683 |       </varlistentry>
 | 
|---|
| 684 | 
 | 
|---|
| 685 |       <varlistentry id="swapoff">
 | 
|---|
| 686 |         <term><command>swapoff</command></term>
 | 
|---|
| 687 |         <listitem>
 | 
|---|
| 688 |           <para>Disables devices and files for paging and swapping</para>
 | 
|---|
| 689 |           <indexterm zone="ch-system-util-linux swapoff">
 | 
|---|
| 690 |             <primary sortas="b-swapoff">swapoff</primary>
 | 
|---|
| 691 |           </indexterm>
 | 
|---|
| 692 |         </listitem>
 | 
|---|
| 693 |       </varlistentry>
 | 
|---|
| 694 | 
 | 
|---|
| 695 |       <varlistentry id="swapon">
 | 
|---|
| 696 |         <term><command>swapon</command></term>
 | 
|---|
| 697 |         <listitem>
 | 
|---|
| 698 |           <para>Enables devices and files for paging and swapping and
 | 
|---|
| 699 |           lists the devices and files currently in use</para>
 | 
|---|
| 700 |           <indexterm zone="ch-system-util-linux swapon">
 | 
|---|
| 701 |             <primary sortas="b-swapon">swapon</primary>
 | 
|---|
| 702 |           </indexterm>
 | 
|---|
| 703 |         </listitem>
 | 
|---|
| 704 |       </varlistentry>
 | 
|---|
| 705 | 
 | 
|---|
| 706 |       <varlistentry id="tailf">
 | 
|---|
| 707 |         <term><command>tailf</command></term>
 | 
|---|
| 708 |         <listitem>
 | 
|---|
| 709 |           <para>Tracks the growth of a log file. Displays the last 10 lines
 | 
|---|
| 710 |           of a log file, then continues displaying any new entries in the
 | 
|---|
| 711 |           log file as they are created</para>
 | 
|---|
| 712 |           <indexterm zone="ch-system-util-linux tailf">
 | 
|---|
| 713 |             <primary sortas="b-tailf">tailf</primary>
 | 
|---|
| 714 |           </indexterm>
 | 
|---|
| 715 |         </listitem>
 | 
|---|
| 716 |       </varlistentry>
 | 
|---|
| 717 | 
 | 
|---|
| 718 |       <varlistentry id="tunelp">
 | 
|---|
| 719 |         <term><command>tunelp</command></term>
 | 
|---|
| 720 |         <listitem>
 | 
|---|
| 721 |           <para>Tunes the parameters of the line printer</para>
 | 
|---|
| 722 |           <indexterm zone="ch-system-util-linux tunelp">
 | 
|---|
| 723 |             <primary sortas="b-tunelp">tunelp</primary>
 | 
|---|
| 724 |           </indexterm>
 | 
|---|
| 725 |         </listitem>
 | 
|---|
| 726 |       </varlistentry>
 | 
|---|
| 727 | 
 | 
|---|
| 728 |       <varlistentry id="ul">
 | 
|---|
| 729 |         <term><command>ul</command></term>
 | 
|---|
| 730 |         <listitem>
 | 
|---|
| 731 |           <para>A filter for translating underscores into escape sequences
 | 
|---|
| 732 |           indicating underlining for the terminal in use</para>
 | 
|---|
| 733 |           <indexterm zone="ch-system-util-linux ul">
 | 
|---|
| 734 |             <primary sortas="b-ul">ul</primary>
 | 
|---|
| 735 |           </indexterm>
 | 
|---|
| 736 |         </listitem>
 | 
|---|
| 737 |       </varlistentry>
 | 
|---|
| 738 | 
 | 
|---|
| 739 |       <varlistentry id="umount">
 | 
|---|
| 740 |         <term><command>umount</command></term>
 | 
|---|
| 741 |         <listitem>
 | 
|---|
| 742 |           <para>Disconnects a file system from the system's file tree</para>
 | 
|---|
| 743 |           <indexterm zone="ch-system-util-linux umount">
 | 
|---|
| 744 |             <primary sortas="b-umount">umount</primary>
 | 
|---|
| 745 |           </indexterm>
 | 
|---|
| 746 |         </listitem>
 | 
|---|
| 747 |       </varlistentry>
 | 
|---|
| 748 | 
 | 
|---|
| 749 |       <varlistentry id="vidmode">
 | 
|---|
| 750 |         <term><command>vidmode</command></term>
 | 
|---|
| 751 |         <listitem>
 | 
|---|
| 752 |           <para>Sets the video mode in a bootable image</para>
 | 
|---|
| 753 |           <indexterm zone="ch-system-util-linux vidmode">
 | 
|---|
| 754 |             <primary sortas="b-vidmode">vidmode</primary>
 | 
|---|
| 755 |           </indexterm>
 | 
|---|
| 756 |         </listitem>
 | 
|---|
| 757 |       </varlistentry>
 | 
|---|
| 758 | 
 | 
|---|
| 759 |       <varlistentry id="whereis">
 | 
|---|
| 760 |         <term><command>whereis</command></term>
 | 
|---|
| 761 |         <listitem>
 | 
|---|
| 762 |           <para>Reports the location of the binary, source, and man page
 | 
|---|
| 763 |           for the given command</para>
 | 
|---|
| 764 |           <indexterm zone="ch-system-util-linux whereis">
 | 
|---|
| 765 |             <primary sortas="b-whereis">whereis</primary>
 | 
|---|
| 766 |           </indexterm>
 | 
|---|
| 767 |         </listitem>
 | 
|---|
| 768 |       </varlistentry>
 | 
|---|
| 769 | 
 | 
|---|
| 770 |       <varlistentry id="write">
 | 
|---|
| 771 |         <term><command>write</command></term>
 | 
|---|
| 772 |         <listitem>
 | 
|---|
| 773 |           <para>Sends a message to the given user <emphasis>if</emphasis> that
 | 
|---|
| 774 |           user has not disabled receipt of such messages</para>
 | 
|---|
| 775 |           <indexterm zone="ch-system-util-linux write">
 | 
|---|
| 776 |             <primary sortas="b-write">write</primary>
 | 
|---|
| 777 |           </indexterm>
 | 
|---|
| 778 |         </listitem>
 | 
|---|
| 779 |       </varlistentry>
 | 
|---|
| 780 | 
 | 
|---|
| 781 |     </variablelist>
 | 
|---|
| 782 | 
 | 
|---|
| 783 |   </sect2>
 | 
|---|
| 784 | 
 | 
|---|
| 785 | </sect1>
 | 
|---|