source: clfs-sysroot/BOOK/final-system/common/util-linux.xml @ beea2b3

Last change on this file since beea2b3 was 586feb7, checked in by Joe Ciccone <jciccone@…>, 18 years ago

Updated the bootscripts package and make LFS to CLFS updates.
  • Property mode set to 100644
File size: 27.8 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-system-util-linux" role="wrap">
9  <?dbhtml filename="util-linux.html"?>
10
11  <title>Util-linux-&util-linux-version;</title>
12
13  <indexterm zone="ch-system-util-linux">
14    <primary sortas="a-Util-linux">Util-linux</primary>
15  </indexterm>
16
17  <sect2 role="package">
18    <title/>
19
20    <para>The Util-linux package contains miscellaneous utility programs.
21    Among them are utilities for handling file systems, consoles, partitions,
22    and messages.</para>
23
24
25  </sect2>
26
27  <sect2 id="fhs-util-linux" role="installation">
28    <title>FHS compliance notes</title>
29
30    <para>The FHS recommends using the <filename
31    class="directory">/var/lib/hwclock</filename> directory instead of the
32    usual <filename class="directory">/etc</filename> directory as the
33    location for the <filename>adjtime</filename> file. To make the
34    <command>hwclock</command> program FHS-compliant, run the following:</para>
35
36<screen><userinput>cp hwclock/hwclock.c{,.orig}
37sed 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
38    hwclock/hwclock.c.orig &gt; hwclock/hwclock.c
39mkdir -pv ${CLFS}/var/lib/hwclock</userinput></screen>
40
41  </sect2>
42
43  <sect2 role="installation">
44    <title>Installation of Util-linux</title>
45
46    <para os="p1">Util-linux fails to compile against newer versions of
47    Linux kernel headers. The following patch properly fixes this issue:</para>
48
49<screen os="p2"><userinput>patch -Np1 -i ../&util-linux-cramfs-patch;</userinput></screen>
50
51    <para os="p3">The following patch fixes build issues with GCC &gcc-version;:</para>
52
53<screen os="p4"><userinput>patch -Np1 -i ../&util-linux-gcc4_fixes-patch;</userinput></screen>
54
55   <para os="p5">The following patch fixes swapon.c, it tries to find the
56   variable R_OK, but the header that has R_OK is not included:</para>
57
58<screen os="p6"><userinput>patch -Np1 -i ../&util-linux-missing_header-patch;</userinput></screen>
59
60    <para os="s1">The following sed prevents the installed files from being
61    owned by root</para>
62
63<screen os="s2"><userinput>cp MCONFIG{,.orig}
64sed -e "s/-o root//" MCONFIG.orig > MCONFIG</userinput></screen>
65
66    <para os="a">Prepare Util-linux for compilation:</para>
67
68<screen os="b"><userinput>./configure</userinput></screen>
69
70    <para os="c">Compile the package:</para>
71
72<screen os="d"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
73CPUOPT="" ARCH="" CPU=""</userinput></screen>
74
75    <variablelist os="e">
76      <title>The meaning of the make parameters:</title>
77
78      <varlistentry os="e1">
79        <term><parameter>HAVE_KILL=yes</parameter></term>
80        <listitem>
81          <para>This prevents the <command>kill</command> program (already
82          installed by Procps) from being built and installed again.</para>
83        </listitem>
84      </varlistentry>
85
86      <varlistentry os="e2">
87        <term><parameter>HAVE_SLN=yes</parameter></term>
88        <listitem>
89          <para>This prevents the <command>sln</command> program (a
90          statically linked version of <command>ln</command> already installed
91          by Glibc) from being built and installed again.</para>
92        </listitem>
93      </varlistentry>
94
95      <varlistentry os="e3">
96        <term><parameter>CPUOPT=""</parameter></term>
97        <listitem>
98          <para>This disables any compiler optimizations by CPU type.</para>
99        </listitem>
100      </varlistentry>
101
102      <varlistentry os="e4">
103        <term><parameter>ARCH=""</parameter></term>
104        <listitem>
105          <para>This disables the detection of the architecture.</para>
106        </listitem>
107      </varlistentry>
108
109      <varlistentry os="e5">
110        <term><parameter>CPU=""</parameter></term>
111        <listitem>
112          <para>This disables the detection of the CPU.</para>
113        </listitem>
114      </varlistentry>
115
116    </variablelist>
117
118    <para os="f">Install the package and move the <command>logger</command> binary
119    to <filename class="directory">/bin</filename> as it is needed by the
120    LFS-Bootscripts package:</para>
121
122<screen os="g"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
123CPUOPT="" ARCH="" CPU="" USE_TTY_GROUP=no DESTDIR=${CLFS} install
124mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
125
126  </sect2>
127
128  <sect2 id="contents-util-linux" role="content">
129    <title>Contents of Util-linux</title>
130
131    <segmentedlist>
132      <segtitle>Installed programs</segtitle>
133
134      <seglistitem>
135        <seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
136        colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat,
137        fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
138        ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs,
139        mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root,
140        ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev,
141        rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk,
142        swapoff (link to swapon), swapon, tailf, tunelp, ul, umount, vidmode
143        (link to rdev), whereis, and write</seg>
144      </seglistitem>
145    </segmentedlist>
146
147    <variablelist>
148      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
149      <?dbfo list-presentation="list"?>
150      <?dbhtml list-presentation="table"?>
151
152      <varlistentry id="agetty">
153        <term><command>agetty</command></term>
154        <listitem>
155          <para>Opens a tty port, prompts for a login name,
156          and then invokes the <command>login</command> program</para>
157          <indexterm zone="ch-system-util-linux agetty">
158            <primary sortas="b-agetty">agetty</primary>
159          </indexterm>
160        </listitem>
161      </varlistentry>
162
163      <varlistentry id="arch">
164        <term><command>arch</command></term>
165        <listitem>
166          <para>Reports the machine's architecture</para>
167          <indexterm zone="ch-system-util-linux arch">
168            <primary sortas="b-arch">arch</primary>
169          </indexterm>
170        </listitem>
171      </varlistentry>
172
173      <varlistentry id="blockdev">
174        <term><command>blockdev</command></term>
175        <listitem>
176          <para>Allows users to call block device ioctls from the command
177          line</para>
178          <indexterm zone="ch-system-util-linux blockdev">
179            <primary sortas="b-blockdev">blockdev</primary>
180          </indexterm>
181        </listitem>
182      </varlistentry>
183
184      <varlistentry id="cal">
185        <term><command>cal</command></term>
186        <listitem>
187          <para>Displays a simple calendar</para>
188          <indexterm zone="ch-system-util-linux cal">
189            <primary sortas="b-cal">cal</primary>
190          </indexterm>
191        </listitem>
192      </varlistentry>
193
194      <varlistentry id="cfdisk">
195        <term><command>cfdisk</command></term>
196        <listitem>
197          <para>Manipulates the partition table of the given device</para>
198          <indexterm zone="ch-system-util-linux cfdisk">
199            <primary sortas="b-cfdisk">cfdisk</primary>
200          </indexterm>
201        </listitem>
202      </varlistentry>
203
204      <varlistentry id="chkdupexe">
205        <term><command>chkdupexe</command></term>
206        <listitem>
207          <para>Finds duplicate executables</para>
208          <indexterm zone="ch-system-util-linux chkdupexe">
209            <primary sortas="b-chkdupexe">chkdupexe</primary>
210          </indexterm>
211        </listitem>
212      </varlistentry>
213
214      <varlistentry id="col">
215        <term><command>col</command></term>
216        <listitem>
217          <para>Filters out reverse line feeds</para>
218          <indexterm zone="ch-system-util-linux col">
219            <primary sortas="b-col">col</primary>
220          </indexterm>
221        </listitem>
222      </varlistentry>
223
224      <varlistentry id="colcrt">
225        <term><command>colcrt</command></term>
226        <listitem>
227          <para>Filters <command>nroff</command> output for terminals
228          that lack some capabilities, such as overstriking and half-lines</para>
229          <indexterm zone="ch-system-util-linux colcrt">
230            <primary sortas="b-colcrt">colcrt</primary>
231          </indexterm>
232        </listitem>
233      </varlistentry>
234
235      <varlistentry id="colrm">
236        <term><command>colrm</command></term>
237        <listitem>
238          <para>Filters out the given columns</para>
239          <indexterm zone="ch-system-util-linux colrm">
240            <primary sortas="b-colrm">colrm</primary>
241          </indexterm>
242        </listitem>
243      </varlistentry>
244
245      <varlistentry id="column">
246        <term><command>column</command></term>
247        <listitem>
248          <para>Formats a given file into multiple columns</para>
249          <indexterm zone="ch-system-util-linux column">
250            <primary sortas="b-column">column</primary>
251          </indexterm>
252        </listitem>
253      </varlistentry>
254
255      <varlistentry id="ctrlaltdel">
256        <term><command>ctrlaltdel</command></term>
257        <listitem>
258          <para>Sets the function of the Ctrl+Alt+Del key combination to a
259          hard or a soft reset</para>
260          <indexterm zone="ch-system-util-linux ctrlaltdel">
261            <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
262          </indexterm>
263        </listitem>
264      </varlistentry>
265
266      <varlistentry id="cytune">
267        <term><command>cytune</command></term>
268        <listitem>
269          <para>Tunes the parameters of the serial line drivers for
270          Cyclades cards</para>
271          <indexterm zone="ch-system-util-linux cytune">
272            <primary sortas="b-cytune">cytune</primary>
273          </indexterm>
274        </listitem>
275      </varlistentry>
276
277      <varlistentry id="ddate">
278        <term><command>ddate</command></term>
279        <listitem>
280          <para>Gives the Discordian date or converts the given Gregorian date
281          to a Discordian one</para>
282          <indexterm zone="ch-system-util-linux ddate">
283            <primary sortas="b-ddate">ddate</primary>
284          </indexterm>
285        </listitem>
286      </varlistentry>
287
288      <varlistentry id="dmesg">
289        <term><command>dmesg</command></term>
290        <listitem>
291          <para>Dumps the kernel boot messages</para>
292          <indexterm zone="ch-system-util-linux dmesg">
293            <primary sortas="b-dmesg">dmesg</primary>
294          </indexterm>
295        </listitem>
296      </varlistentry>
297
298      <varlistentry id="elvtune">
299        <term><command>elvtune</command></term>
300        <listitem>
301          <para>Tunes the performance and interactivity of a block
302          device</para>
303          <indexterm zone="ch-system-util-linux elvtune">
304            <primary sortas="b-elvtune">elvtune</primary>
305          </indexterm>
306        </listitem>
307      </varlistentry>
308
309      <varlistentry id="fdformat">
310        <term><command>fdformat</command></term>
311        <listitem>
312          <para>Low-level formats a floppy disk</para>
313          <indexterm zone="ch-system-util-linux fdformat">
314            <primary sortas="b-fdformat">fdformat</primary>
315          </indexterm>
316        </listitem>
317      </varlistentry>
318
319      <varlistentry id="fdisk">
320        <term><command>fdisk</command></term>
321        <listitem>
322          <para>Manipulates the partition table of the given device</para>
323          <indexterm zone="ch-system-util-linux fdisk">
324            <primary sortas="b-fdisk">fdisk</primary>
325          </indexterm>
326        </listitem>
327      </varlistentry>
328
329      <varlistentry id="flock">
330        <term><command>flock</command></term>
331        <listitem>
332          <para>Acquires a file lock and then executes a command with the lock
333          held</para>
334          <indexterm zone="ch-system-util-linux flock">
335            <primary sortas="b-flock">flock</primary>
336          </indexterm>
337        </listitem>
338      </varlistentry>
339
340      <varlistentry id="fsck.cramfs">
341        <term><command>fsck.cramfs</command></term>
342        <listitem>
343          <para>Performs a consistency check on the Cramfs file system on the
344          given device</para>
345          <indexterm zone="ch-system-util-linux fsck.cramfs">
346            <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
347          </indexterm>
348        </listitem>
349      </varlistentry>
350
351      <varlistentry id="fsck.minix">
352        <term><command>fsck.minix</command></term>
353        <listitem>
354          <para>Performs a consistency check on the Minix file system on the
355          given device</para>
356          <indexterm zone="ch-system-util-linux fsck.minix">
357            <primary sortas="b-fsck.minix">fsck.minix</primary>
358          </indexterm>
359        </listitem>
360      </varlistentry>
361
362      <varlistentry id="getopt">
363        <term><command>getopt</command></term>
364        <listitem>
365          <para>Parses options in the given command line</para>
366          <indexterm zone="ch-system-util-linux getopt">
367            <primary sortas="b-getopt">getopt</primary>
368          </indexterm>
369        </listitem>
370      </varlistentry>
371
372      <varlistentry id="hexdump">
373        <term><command>hexdump</command></term>
374        <listitem>
375          <para>Dumps the given file in hexadecimal or in another given
376          format</para>
377          <indexterm zone="ch-system-util-linux hexdump">
378            <primary sortas="b-hexdump">hexdump</primary>
379          </indexterm>
380        </listitem>
381      </varlistentry>
382
383      <varlistentry id="hwclock">
384        <term><command>hwclock</command></term>
385        <listitem>
386          <para>Reads or sets the system's hardware clock, also called
387          the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
388          clock</para>
389          <indexterm zone="ch-system-util-linux hwclock">
390            <primary sortas="b-hwclock">hwclock</primary>
391          </indexterm>
392        </listitem>
393      </varlistentry>
394
395      <varlistentry id="ipcrm">
396        <term><command>ipcrm</command></term>
397        <listitem>
398          <para>Removes the given Inter-Process Communication (IPC) resource</para>
399          <indexterm zone="ch-system-util-linux ipcrm">
400            <primary sortas="b-ipcrm">ipcrm</primary>
401          </indexterm>
402        </listitem>
403      </varlistentry>
404
405      <varlistentry id="ipcs">
406        <term><command>ipcs</command></term>
407        <listitem>
408          <para>Provides IPC status information</para>
409          <indexterm zone="ch-system-util-linux ipcs">
410            <primary sortas="b-ipcs">ipcs</primary>
411          </indexterm>
412        </listitem>
413      </varlistentry>
414
415      <varlistentry id="isosize">
416        <term><command>isosize</command></term>
417        <listitem>
418          <para>Reports the size of an iso9660 file system</para>
419          <indexterm zone="ch-system-util-linux isosize">
420            <primary sortas="b-isosize">isosize</primary>
421          </indexterm>
422        </listitem>
423      </varlistentry>
424
425      <varlistentry id="line">
426        <term><command>line</command></term>
427        <listitem>
428          <para>Copies a single line</para>
429          <indexterm zone="ch-system-util-linux line">
430            <primary sortas="b-line">line</primary>
431          </indexterm>
432        </listitem>
433      </varlistentry>
434
435      <varlistentry id="logger">
436        <term><command>logger</command></term>
437        <listitem>
438          <para>Enters the given message into the system log</para>
439          <indexterm zone="ch-system-util-linux logger">
440            <primary sortas="b-logger">logger</primary>
441          </indexterm>
442        </listitem>
443      </varlistentry>
444
445      <varlistentry id="look">
446        <term><command>look</command></term>
447        <listitem>
448          <para>Displays lines that begin with the given string</para>
449          <indexterm zone="ch-system-util-linux look">
450            <primary sortas="b-look">look</primary>
451          </indexterm>
452        </listitem>
453      </varlistentry>
454
455      <varlistentry id="losetup">
456        <term><command>losetup</command></term>
457        <listitem>
458          <para>Sets up and controls loop devices</para>
459          <indexterm zone="ch-system-util-linux losetup">
460            <primary sortas="b-losetup">losetup</primary>
461          </indexterm>
462        </listitem>
463      </varlistentry>
464
465      <varlistentry id="mcookie">
466        <term><command>mcookie</command></term>
467        <listitem>
468          <para>Generates magic cookies (128-bit random hexadecimal numbers) for
469          <command>xauth</command></para>
470          <indexterm zone="ch-system-util-linux mcookie">
471            <primary sortas="b-mcookie">mcookie</primary>
472          </indexterm>
473        </listitem>
474      </varlistentry>
475
476      <varlistentry id="mkfs">
477        <term><command>mkfs</command></term>
478        <listitem>
479          <para>Builds a file system on a device (usually a hard disk
480          partition)</para>
481          <indexterm zone="ch-system-util-linux mkfs">
482            <primary sortas="b-mkfs">mkfs</primary>
483          </indexterm>
484        </listitem>
485      </varlistentry>
486
487      <varlistentry id="mkfs.bfs">
488        <term><command>mkfs.bfs</command></term>
489        <listitem>
490          <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
491          <indexterm zone="ch-system-util-linux mkfs.bfs">
492            <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
493          </indexterm>
494        </listitem>
495      </varlistentry>
496
497      <varlistentry id="mkfs.cramfs">
498        <term><command>mkfs.cramfs</command></term>
499        <listitem>
500          <para>Creates a cramfs file system</para>
501          <indexterm zone="ch-system-util-linux mkfs.cramfs">
502            <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
503          </indexterm>
504        </listitem>
505      </varlistentry>
506
507      <varlistentry id="mkfs.minix">
508        <term><command>mkfs.minix</command></term>
509        <listitem>
510          <para>Creates a Minix file system</para>
511          <indexterm zone="ch-system-util-linux mkfs.minix">
512            <primary sortas="b-mkfs.minix">mkfs.minix</primary>
513          </indexterm>
514        </listitem>
515      </varlistentry>
516
517      <varlistentry id="mkswap">
518        <term><command>mkswap</command></term>
519        <listitem>
520          <para>Initializes the given device or file to be used as a swap
521          area</para>
522          <indexterm zone="ch-system-util-linux mkswap">
523            <primary sortas="b-mkswap">mkswap</primary>
524          </indexterm>
525        </listitem>
526      </varlistentry>
527
528      <varlistentry id="more">
529        <term><command>more</command></term>
530        <listitem>
531          <para>A filter for paging through text one screen at a time</para>
532          <indexterm zone="ch-system-util-linux more">
533            <primary sortas="b-more">more</primary>
534          </indexterm>
535        </listitem>
536      </varlistentry>
537
538      <varlistentry id="mount">
539        <term><command>mount</command></term>
540        <listitem>
541          <para>Attaches the file system on the given device to a specified
542          directory in the file-system tree</para>
543          <indexterm zone="ch-system-util-linux mount">
544            <primary sortas="b-mount">mount</primary>
545          </indexterm>
546        </listitem>
547      </varlistentry>
548
549      <varlistentry id="namei">
550        <term><command>namei</command></term>
551        <listitem>
552          <para>Shows the symbolic links in the given pathnames</para>
553          <indexterm zone="ch-system-util-linux namei">
554            <primary sortas="b-namei">namei</primary>
555          </indexterm>
556        </listitem>
557      </varlistentry>
558
559      <varlistentry id="pg">
560        <term><command>pg</command></term>
561        <listitem>
562          <para>Displays a text file one screen full at a time</para>
563          <indexterm zone="ch-system-util-linux pg">
564            <primary sortas="b-pg">pg</primary>
565          </indexterm>
566        </listitem>
567      </varlistentry>
568
569      <varlistentry id="pivot_root">
570        <term><command>pivot_root</command></term>
571        <listitem>
572          <para>Makes the given file system the new root file system of the
573          current process</para>
574          <indexterm zone="ch-system-util-linux pivot_root">
575            <primary sortas="b-pivot_root">pivot_root</primary>
576          </indexterm>
577        </listitem>
578      </varlistentry>
579
580      <varlistentry id="ramsize">
581        <term><command>ramsize</command></term>
582        <listitem>
583          <para>Sets the size of the RAM disk in a bootable image</para>
584          <indexterm zone="ch-system-util-linux ramsize">
585            <primary sortas="b-ramsize">ramsize</primary>
586          </indexterm>
587        </listitem>
588      </varlistentry>
589
590      <varlistentry id="raw">
591        <term><command>raw</command></term>
592        <listitem>
593          <para>Used to bind a Linux raw character device to a block
594          device</para>
595          <indexterm zone="ch-system-util-linux raw">
596            <primary sortas="b-raw">raw</primary>
597          </indexterm>
598        </listitem>
599      </varlistentry>
600
601      <varlistentry id="rdev">
602        <term><command>rdev</command></term>
603        <listitem>
604          <para>Queries and sets the root device, among other things, in a
605          bootable image</para>
606          <indexterm zone="ch-system-util-linux rdev">
607            <primary sortas="b-rdev">rdev</primary>
608          </indexterm>
609        </listitem>
610      </varlistentry>
611
612      <varlistentry id="readprofile">
613        <term><command>readprofile</command></term>
614        <listitem>
615          <para>Reads kernel profiling information</para>
616          <indexterm zone="ch-system-util-linux readprofile">
617            <primary sortas="b-readprofile">readprofile</primary>
618          </indexterm>
619        </listitem>
620      </varlistentry>
621
622      <varlistentry id="rename">
623        <term><command>rename</command></term>
624        <listitem>
625          <para>Renames the given files, replacing a given string with
626          another</para>
627          <indexterm zone="ch-system-util-linux rename">
628            <primary sortas="b-rename">rename</primary>
629          </indexterm>
630        </listitem>
631      </varlistentry>
632
633      <varlistentry id="renice">
634        <term><command>renice</command></term>
635        <listitem>
636          <para>Alters the priority of running processes</para>
637          <indexterm zone="ch-system-util-linux renice">
638            <primary sortas="b-renice">renice</primary>
639          </indexterm>
640        </listitem>
641      </varlistentry>
642
643      <varlistentry id="rev">
644        <term><command>rev</command></term>
645        <listitem>
646          <para>Reverses the lines of a given file</para>
647          <indexterm zone="ch-system-util-linux rev">
648            <primary sortas="b-rev">rev</primary>
649          </indexterm>
650        </listitem>
651      </varlistentry>
652
653      <varlistentry id="rootflags">
654        <term><command>rootflags</command></term>
655        <listitem>
656          <para>Sets the rootflags in a bootable image</para>
657          <indexterm zone="ch-system-util-linux rootflags">
658            <primary sortas="b-rootflags">rootflags</primary>
659          </indexterm>
660        </listitem>
661      </varlistentry>
662
663      <varlistentry id="script">
664        <term><command>script</command></term>
665        <listitem>
666          <para>Makes a typescript of a terminal session</para>
667          <indexterm zone="ch-system-util-linux script">
668            <primary sortas="b-script">script</primary>
669          </indexterm>
670        </listitem>
671      </varlistentry>
672
673      <varlistentry id="setfdprm">
674        <term><command>setfdprm</command></term>
675        <listitem>
676          <para>Sets user-provided floppy disk parameters</para>
677          <indexterm zone="ch-system-util-linux setfdprm">
678            <primary sortas="b-setfdprm">setfdprm</primary>
679          </indexterm>
680        </listitem>
681      </varlistentry>
682
683      <varlistentry id="setsid">
684        <term><command>setsid</command></term>
685        <listitem>
686          <para>Runs the given program in a new session</para>
687          <indexterm zone="ch-system-util-linux setsid">
688            <primary sortas="b-setsid">setsid</primary>
689          </indexterm>
690        </listitem>
691      </varlistentry>
692
693      <varlistentry id="setterm">
694        <term><command>setterm</command></term>
695        <listitem>
696          <para>Sets terminal attributes</para>
697          <indexterm zone="ch-system-util-linux setterm">
698            <primary sortas="b-setterm">setterm</primary>
699          </indexterm>
700        </listitem>
701      </varlistentry>
702
703      <varlistentry id="sfdisk">
704        <term><command>sfdisk</command></term>
705        <listitem>
706          <para>A disk partition table manipulator</para>
707          <indexterm zone="ch-system-util-linux sfdisk">
708            <primary sortas="b-sfdisk">sfdisk</primary>
709          </indexterm>
710        </listitem>
711      </varlistentry>
712
713      <varlistentry id="swapoff">
714        <term><command>swapoff</command></term>
715        <listitem>
716          <para>Disables devices and files for paging and swapping</para>
717          <indexterm zone="ch-system-util-linux swapoff">
718            <primary sortas="b-swapoff">swapoff</primary>
719          </indexterm>
720        </listitem>
721      </varlistentry>
722
723      <varlistentry id="swapon">
724        <term><command>swapon</command></term>
725        <listitem>
726          <para>Enables devices and files for paging and swapping and
727          lists the devices and files currently in use</para>
728          <indexterm zone="ch-system-util-linux swapon">
729            <primary sortas="b-swapon">swapon</primary>
730          </indexterm>
731        </listitem>
732      </varlistentry>
733
734      <varlistentry id="tailf">
735        <term><command>tailf</command></term>
736        <listitem>
737          <para>Tracks the growth of a log file. Displays the last 10 lines
738          of a log file, then continues displaying any new entries in the
739          log file as they are created</para>
740          <indexterm zone="ch-system-util-linux tailf">
741            <primary sortas="b-tailf">tailf</primary>
742          </indexterm>
743        </listitem>
744      </varlistentry>
745
746      <varlistentry id="tunelp">
747        <term><command>tunelp</command></term>
748        <listitem>
749          <para>Tunes the parameters of the line printer</para>
750          <indexterm zone="ch-system-util-linux tunelp">
751            <primary sortas="b-tunelp">tunelp</primary>
752          </indexterm>
753        </listitem>
754      </varlistentry>
755
756      <varlistentry id="ul">
757        <term><command>ul</command></term>
758        <listitem>
759          <para>A filter for translating underscores into escape sequences
760          indicating underlining for the terminal in use</para>
761          <indexterm zone="ch-system-util-linux ul">
762            <primary sortas="b-ul">ul</primary>
763          </indexterm>
764        </listitem>
765      </varlistentry>
766
767      <varlistentry id="umount">
768        <term><command>umount</command></term>
769        <listitem>
770          <para>Disconnects a file system from the system's file tree</para>
771          <indexterm zone="ch-system-util-linux umount">
772            <primary sortas="b-umount">umount</primary>
773          </indexterm>
774        </listitem>
775      </varlistentry>
776
777      <varlistentry id="vidmode">
778        <term><command>vidmode</command></term>
779        <listitem>
780          <para>Sets the video mode in a bootable image</para>
781          <indexterm zone="ch-system-util-linux vidmode">
782            <primary sortas="b-vidmode">vidmode</primary>
783          </indexterm>
784        </listitem>
785      </varlistentry>
786
787      <varlistentry id="whereis">
788        <term><command>whereis</command></term>
789        <listitem>
790          <para>Reports the location of the binary, source, and man page
791          for the given command</para>
792          <indexterm zone="ch-system-util-linux whereis">
793            <primary sortas="b-whereis">whereis</primary>
794          </indexterm>
795        </listitem>
796      </varlistentry>
797
798      <varlistentry id="write">
799        <term><command>write</command></term>
800        <listitem>
801          <para>Sends a message to the given user <emphasis>if</emphasis> that
802          user has not disabled receipt of such messages</para>
803          <indexterm zone="ch-system-util-linux write">
804            <primary sortas="b-write">write</primary>
805          </indexterm>
806        </listitem>
807      </varlistentry>
808
809    </variablelist>
810
811  </sect2>
812
813</sect1>
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