source: clfs-sysroot/BOOK/final-system/common/util-linux-ng.xml @ 2a5046a

Last change on this file since 2a5046a was 2a5046a, checked in by Joe Ciccone <jciccone@…>, 15 years ago

use the libblkid and libuuid provided by Util-Linux-NG instead of E2fsprogs now.
  • Property mode set to 100644
File size: 28.0 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-system-util-linux-ng" role="wrap">
9  <?dbhtml filename="util-linux-ng.html"?>
10
11  <title>Util-linux-ng-&util-linux-ng-version;</title>
12
13  <indexterm zone="ch-system-util-linux-ng">
14    <primary sortas="a-Util-linux-ng">Util-linux-ng</primary>
15  </indexterm>
16
17  <sect2 role="package">
18    <title/>
19
20    <para>The Util-linux-ng package contains miscellaneous utility programs.
21    Among them are utilities for handling file systems, consoles, partitions,
22    and messages.</para>
23
24  </sect2>
25
26  &env-target;
27
28  <sect2 id="fhs-util-linux-ng" role="installation">
29    <title>FHS compliance notes</title>
30
31    <para>The FHS recommends using the <filename
32    class="directory">/var/lib/hwclock</filename> directory instead of the
33    usual <filename class="directory">/etc</filename> directory as the
34    location for the <filename>adjtime</filename> file. To make the
35    <command>hwclock</command> program FHS-compliant, run the following:</para>
36
37<screen><userinput>cp hwclock/hwclock.c{,.orig}
38sed -e 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
39    hwclock/hwclock.c.orig &gt; hwclock/hwclock.c
40mkdir -pv ${CLFS}/var/lib/hwclock</userinput></screen>
41
42  </sect2>
43
44  <sect2 role="installation">
45    <title>Installation of Util-linux-ng</title>
46
47    <para os="a">Prepare Util-linux-ng for compilation:</para>
48
49<screen os="b"><userinput>./configure --build=${CLFS_HOST} --host=${CLFS_TARGET} \
50    --enable-arch --enable-partx --disable-wall \
51    --enable-write --disable-makeinstall-chown</userinput></screen>
52
53    <variablelist os="c">
54      <title>The meaning of the configure options:</title>
55
56      <varlistentry>
57        <term><parameter>--enable-arch</parameter></term>
58        <listitem>
59          <para>This option allows the <command>arch</command> program to be
60          installed.</para>
61        </listitem>
62      </varlistentry>
63
64      <varlistentry>
65        <term><parameter>--enable-partx</parameter></term>
66        <listitem>
67          <para>Enables building the <command>addpart</command>, <command>delpart</command>,
68           <command>partx</command> programs.</para>
69        </listitem>
70      </varlistentry>
71
72      <varlistentry>
73        <term><parameter>--enable-write</parameter></term>
74        <listitem>
75          <para>This option allows the <command>write</command> program to be
76          installed.</para>
77        </listitem>
78      </varlistentry>
79
80      <varlistentry>
81        <term><parameter>--disable-wall</parameter></term>
82        <listitem>
83          <para>Disables building the <command>wall</command> program,
84          as the Sysvinit package installs its own version.</para>
85        </listitem>
86      </varlistentry>
87
88    </variablelist>
89
90    <para os="d">Compile the package:</para>
91
92<screen os="e"><userinput>make</userinput></screen>
93
94    <para os="f">Install the package:</para>
95
96<screen os="g"><userinput>make DESTDIR=${CLFS} install</userinput></screen>
97
98    <para os="h">Move the <command>logger</command> binary to
99    <filename class="directory">/bin</filename> as it is needed by the
100    CLFS-Bootscripts package:</para>
101
102<screen os="i"><userinput>mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
103
104  </sect2>
105
106  <sect2 id="contents-util-linux-ng" role="content">
107    <title>Contents of Util-linux-ng</title>
108
109    <segmentedlist>
110      <segtitle>Installed programs</segtitle>
111      <segtitle>Installed libraries</segtitle>
112
113      <seglistitem>
114        <seg>addpart, agetty, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
115        colrm, column, ctrlaltdel, cytune, ddate, delpart, dmesg, fdformat,
116        fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ionice,
117        ipcrm, ipcs, isosize, line, logger, look, losetup, mcookie, mkfs,
118        mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, partx,
119        pg, pivot_root, readprofile, rename, renice, rev, rtcwake, script,
120        scriptreplay, setarch, setsid, setterm, sfdisk, swapoff (link to swapon),
121        swapon, tailf, taskset, tunelp, ul, umount, whereis, and write</seg>
122        <seg>libblkid.[a,so] and libuuid.[a,so]</seg>
123      </seglistitem>
124    </segmentedlist>
125
126    <variablelist>
127      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
128      <?dbfo list-presentation="list"?>
129      <?dbhtml list-presentation="table"?>
130
131      <varlistentry id="addpart">
132        <term><command>addpart</command></term>
133        <listitem>
134          <para>Informs the kernel of a new partition</para>
135          <indexterm zone="ch-system-util-linux-ng addpart">
136            <primary sortas="b-addpart">addpart</primary>
137          </indexterm>
138        </listitem>
139      </varlistentry>
140
141      <varlistentry id="agetty">
142        <term><command>agetty</command></term>
143        <listitem>
144          <para>Opens a tty port, prompts for a login name,
145          and then invokes the <command>login</command> program</para>
146          <indexterm zone="ch-system-util-linux-ng agetty">
147            <primary sortas="b-agetty">agetty</primary>
148          </indexterm>
149        </listitem>
150      </varlistentry>
151
152      <varlistentry id="blockdev">
153        <term><command>blockdev</command></term>
154        <listitem>
155          <para>Allows users to call block device ioctls from the command
156          line</para>
157          <indexterm zone="ch-system-util-linux-ng blockdev">
158            <primary sortas="b-blockdev">blockdev</primary>
159          </indexterm>
160        </listitem>
161      </varlistentry>
162
163      <varlistentry id="cal">
164        <term><command>cal</command></term>
165        <listitem>
166          <para>Displays a simple calendar</para>
167          <indexterm zone="ch-system-util-linux-ng cal">
168            <primary sortas="b-cal">cal</primary>
169          </indexterm>
170        </listitem>
171      </varlistentry>
172
173      <varlistentry id="cfdisk">
174        <term><command>cfdisk</command></term>
175        <listitem>
176          <para>Manipulates the partition table of the given device</para>
177          <indexterm zone="ch-system-util-linux-ng cfdisk">
178            <primary sortas="b-cfdisk">cfdisk</primary>
179          </indexterm>
180        </listitem>
181      </varlistentry>
182
183      <varlistentry id="chkdupexe">
184        <term><command>chkdupexe</command></term>
185        <listitem>
186          <para>Finds duplicate executables</para>
187          <indexterm zone="ch-system-util-linux-ng chkdupexe">
188            <primary sortas="b-chkdupexe">chkdupexe</primary>
189          </indexterm>
190        </listitem>
191      </varlistentry>
192
193      <varlistentry id="col">
194        <term><command>col</command></term>
195        <listitem>
196          <para>Filters out reverse line feeds</para>
197          <indexterm zone="ch-system-util-linux-ng col">
198            <primary sortas="b-col">col</primary>
199          </indexterm>
200        </listitem>
201      </varlistentry>
202
203      <varlistentry id="colcrt">
204        <term><command>colcrt</command></term>
205        <listitem>
206          <para>Filters <command>nroff</command> output for terminals
207          that lack some capabilities, such as overstriking and half-lines</para>
208          <indexterm zone="ch-system-util-linux-ng colcrt">
209            <primary sortas="b-colcrt">colcrt</primary>
210          </indexterm>
211        </listitem>
212      </varlistentry>
213
214      <varlistentry id="colrm">
215        <term><command>colrm</command></term>
216        <listitem>
217          <para>Filters out the given columns</para>
218          <indexterm zone="ch-system-util-linux-ng colrm">
219            <primary sortas="b-colrm">colrm</primary>
220          </indexterm>
221        </listitem>
222      </varlistentry>
223
224      <varlistentry id="column">
225        <term><command>column</command></term>
226        <listitem>
227          <para>Formats a given file into multiple columns</para>
228          <indexterm zone="ch-system-util-linux-ng column">
229            <primary sortas="b-column">column</primary>
230          </indexterm>
231        </listitem>
232      </varlistentry>
233
234      <varlistentry id="ctrlaltdel">
235        <term><command>ctrlaltdel</command></term>
236        <listitem>
237          <para>Sets the function of the Ctrl+Alt+Del key combination to a
238          hard or a soft reset</para>
239          <indexterm zone="ch-system-util-linux-ng ctrlaltdel">
240            <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
241          </indexterm>
242        </listitem>
243      </varlistentry>
244
245      <varlistentry id="cytune">
246        <term><command>cytune</command></term>
247        <listitem>
248          <para>Tunes the parameters of the serial line drivers for
249          Cyclades cards</para>
250          <indexterm zone="ch-system-util-linux-ng cytune">
251            <primary sortas="b-cytune">cytune</primary>
252          </indexterm>
253        </listitem>
254      </varlistentry>
255
256      <varlistentry id="ddate">
257        <term><command>ddate</command></term>
258        <listitem>
259          <para>Gives the Discordian date or converts the given Gregorian date
260          to a Discordian one</para>
261          <indexterm zone="ch-system-util-linux-ng ddate">
262            <primary sortas="b-ddate">ddate</primary>
263          </indexterm>
264        </listitem>
265      </varlistentry>
266
267      <varlistentry id="delpart">
268        <term><command>delpart</command></term>
269        <listitem>
270          <para>Asks the kernel to remove a partition</para>
271          <indexterm zone="ch-system-util-linux-ng delpart">
272            <primary sortas="b-delpart">delpart</primary>
273          </indexterm>
274        </listitem>
275      </varlistentry>
276
277      <varlistentry id="dmesg">
278        <term><command>dmesg</command></term>
279        <listitem>
280          <para>Dumps the kernel boot messages</para>
281          <indexterm zone="ch-system-util-linux-ng dmesg">
282            <primary sortas="b-dmesg">dmesg</primary>
283          </indexterm>
284        </listitem>
285      </varlistentry>
286
287      <varlistentry id="fdformat">
288        <term><command>fdformat</command></term>
289        <listitem>
290          <para>Low-level formats a floppy disk</para>
291          <indexterm zone="ch-system-util-linux-ng fdformat">
292            <primary sortas="b-fdformat">fdformat</primary>
293          </indexterm>
294        </listitem>
295      </varlistentry>
296
297      <varlistentry id="fdisk">
298        <term><command>fdisk</command></term>
299        <listitem>
300          <para>Manipulates the partition table of the given device</para>
301          <indexterm zone="ch-system-util-linux-ng fdisk">
302            <primary sortas="b-fdisk">fdisk</primary>
303          </indexterm>
304        </listitem>
305      </varlistentry>
306
307      <varlistentry id="flock">
308        <term><command>flock</command></term>
309        <listitem>
310          <para>Acquires a file lock and then executes a command with the lock
311          held</para>
312          <indexterm zone="ch-system-util-linux-ng flock">
313            <primary sortas="b-flock">flock</primary>
314          </indexterm>
315        </listitem>
316      </varlistentry>
317
318      <varlistentry id="fsck.cramfs">
319        <term><command>fsck.cramfs</command></term>
320        <listitem>
321          <para>Performs a consistency check on the Cramfs file system on the
322          given device</para>
323          <indexterm zone="ch-system-util-linux-ng fsck.cramfs">
324            <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
325          </indexterm>
326        </listitem>
327      </varlistentry>
328
329      <varlistentry id="fsck.minix">
330        <term><command>fsck.minix</command></term>
331        <listitem>
332          <para>Performs a consistency check on the Minix file system on the
333          given device</para>
334          <indexterm zone="ch-system-util-linux-ng fsck.minix">
335            <primary sortas="b-fsck.minix">fsck.minix</primary>
336          </indexterm>
337        </listitem>
338      </varlistentry>
339
340      <varlistentry id="getopt">
341        <term><command>getopt</command></term>
342        <listitem>
343          <para>Parses options in the given command line</para>
344          <indexterm zone="ch-system-util-linux-ng getopt">
345            <primary sortas="b-getopt">getopt</primary>
346          </indexterm>
347        </listitem>
348      </varlistentry>
349
350      <varlistentry id="hexdump">
351        <term><command>hexdump</command></term>
352        <listitem>
353          <para>Dumps the given file in hexadecimal or in another given
354          format</para>
355          <indexterm zone="ch-system-util-linux-ng hexdump">
356            <primary sortas="b-hexdump">hexdump</primary>
357          </indexterm>
358        </listitem>
359      </varlistentry>
360
361      <varlistentry id="hwclock">
362        <term><command>hwclock</command></term>
363        <listitem>
364          <para>Reads or sets the system's hardware clock, also called
365          the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
366          clock</para>
367          <indexterm zone="ch-system-util-linux-ng hwclock">
368            <primary sortas="b-hwclock">hwclock</primary>
369          </indexterm>
370        </listitem>
371      </varlistentry>
372
373      <varlistentry id="ionice">
374        <term><command>ionice</command></term>
375        <listitem>
376          <para>Gives and sets program I/O scheduling class and priority</para>
377          <indexterm zone="ch-system-util-linux-ng ionice">
378            <primary sortas="b-ionice">ionice</primary>
379          </indexterm>
380        </listitem>
381      </varlistentry>
382
383      <varlistentry id="ipcrm">
384        <term><command>ipcrm</command></term>
385        <listitem>
386          <para>Removes the given Inter-Process Communication (IPC) resource</para>
387          <indexterm zone="ch-system-util-linux-ng ipcrm">
388            <primary sortas="b-ipcrm">ipcrm</primary>
389          </indexterm>
390        </listitem>
391      </varlistentry>
392
393      <varlistentry id="ipcs">
394        <term><command>ipcs</command></term>
395        <listitem>
396          <para>Provides IPC status information</para>
397          <indexterm zone="ch-system-util-linux-ng ipcs">
398            <primary sortas="b-ipcs">ipcs</primary>
399          </indexterm>
400        </listitem>
401      </varlistentry>
402
403      <varlistentry id="isosize">
404        <term><command>isosize</command></term>
405        <listitem>
406          <para>Reports the size of an iso9660 file system</para>
407          <indexterm zone="ch-system-util-linux-ng isosize">
408            <primary sortas="b-isosize">isosize</primary>
409          </indexterm>
410        </listitem>
411      </varlistentry>
412
413      <varlistentry id="line">
414        <term><command>line</command></term>
415        <listitem>
416          <para>Copies a single line</para>
417          <indexterm zone="ch-system-util-linux-ng line">
418            <primary sortas="b-line">line</primary>
419          </indexterm>
420        </listitem>
421      </varlistentry>
422
423      <varlistentry id="logger">
424        <term><command>logger</command></term>
425        <listitem>
426          <para>Enters the given message into the system log</para>
427          <indexterm zone="ch-system-util-linux-ng logger">
428            <primary sortas="b-logger">logger</primary>
429          </indexterm>
430        </listitem>
431      </varlistentry>
432
433      <varlistentry id="look">
434        <term><command>look</command></term>
435        <listitem>
436          <para>Displays lines that begin with the given string</para>
437          <indexterm zone="ch-system-util-linux-ng look">
438            <primary sortas="b-look">look</primary>
439          </indexterm>
440        </listitem>
441      </varlistentry>
442
443      <varlistentry id="losetup">
444        <term><command>losetup</command></term>
445        <listitem>
446          <para>Sets up and controls loop devices</para>
447          <indexterm zone="ch-system-util-linux-ng losetup">
448            <primary sortas="b-losetup">losetup</primary>
449          </indexterm>
450        </listitem>
451      </varlistentry>
452
453      <varlistentry id="mcookie">
454        <term><command>mcookie</command></term>
455        <listitem>
456          <para>Generates magic cookies (128-bit random hexadecimal numbers) for
457          <command>xauth</command></para>
458          <indexterm zone="ch-system-util-linux-ng mcookie">
459            <primary sortas="b-mcookie">mcookie</primary>
460          </indexterm>
461        </listitem>
462      </varlistentry>
463
464      <varlistentry id="mkfs">
465        <term><command>mkfs</command></term>
466        <listitem>
467          <para>Builds a file system on a device (usually a hard disk
468          partition)</para>
469          <indexterm zone="ch-system-util-linux-ng mkfs">
470            <primary sortas="b-mkfs">mkfs</primary>
471          </indexterm>
472        </listitem>
473      </varlistentry>
474
475      <varlistentry id="mkfs.bfs">
476        <term><command>mkfs.bfs</command></term>
477        <listitem>
478          <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
479          <indexterm zone="ch-system-util-linux-ng mkfs.bfs">
480            <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
481          </indexterm>
482        </listitem>
483      </varlistentry>
484
485      <varlistentry id="mkfs.cramfs">
486        <term><command>mkfs.cramfs</command></term>
487        <listitem>
488          <para>Creates a cramfs file system</para>
489          <indexterm zone="ch-system-util-linux-ng mkfs.cramfs">
490            <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
491          </indexterm>
492        </listitem>
493      </varlistentry>
494
495      <varlistentry id="mkfs.minix">
496        <term><command>mkfs.minix</command></term>
497        <listitem>
498          <para>Creates a Minix file system</para>
499          <indexterm zone="ch-system-util-linux-ng mkfs.minix">
500            <primary sortas="b-mkfs.minix">mkfs.minix</primary>
501          </indexterm>
502        </listitem>
503      </varlistentry>
504
505      <varlistentry id="mkswap">
506        <term><command>mkswap</command></term>
507        <listitem>
508          <para>Initializes the given device or file to be used as a swap
509          area</para>
510          <indexterm zone="ch-system-util-linux-ng mkswap">
511            <primary sortas="b-mkswap">mkswap</primary>
512          </indexterm>
513        </listitem>
514      </varlistentry>
515
516      <varlistentry id="more">
517        <term><command>more</command></term>
518        <listitem>
519          <para>A filter for paging through text one screen at a time</para>
520          <indexterm zone="ch-system-util-linux-ng more">
521            <primary sortas="b-more">more</primary>
522          </indexterm>
523        </listitem>
524      </varlistentry>
525
526      <varlistentry id="mount">
527        <term><command>mount</command></term>
528        <listitem>
529          <para>Attaches the file system on the given device to a specified
530          directory in the file-system tree</para>
531          <indexterm zone="ch-system-util-linux-ng mount">
532            <primary sortas="b-mount">mount</primary>
533          </indexterm>
534        </listitem>
535      </varlistentry>
536
537      <varlistentry id="namei">
538        <term><command>namei</command></term>
539        <listitem>
540          <para>Shows the symbolic links in the given pathnames</para>
541          <indexterm zone="ch-system-util-linux-ng namei">
542            <primary sortas="b-namei">namei</primary>
543          </indexterm>
544        </listitem>
545      </varlistentry>
546
547      <varlistentry id="partx">
548        <term><command>partx</command></term>
549        <listitem>
550          <para>Tells the kernel about the presence and numbering of on-disk
551          partitions</para>
552          <indexterm zone="ch-system-util-linux-ng partx">
553            <primary sortas="b-partx">partx</primary>
554          </indexterm>
555        </listitem>
556      </varlistentry>
557
558      <varlistentry id="pg">
559        <term><command>pg</command></term>
560        <listitem>
561          <para>Displays a text file one screen full at a time</para>
562          <indexterm zone="ch-system-util-linux-ng pg">
563            <primary sortas="b-pg">pg</primary>
564          </indexterm>
565        </listitem>
566      </varlistentry>
567
568      <varlistentry id="pivot_root">
569        <term><command>pivot_root</command></term>
570        <listitem>
571          <para>Makes the given file system the new root file system of the
572          current process</para>
573          <indexterm zone="ch-system-util-linux-ng pivot_root">
574            <primary sortas="b-pivot_root">pivot_root</primary>
575          </indexterm>
576        </listitem>
577      </varlistentry>
578
579      <varlistentry id="readprofile">
580        <term><command>readprofile</command></term>
581        <listitem>
582          <para>Reads kernel profiling information</para>
583          <indexterm zone="ch-system-util-linux-ng readprofile">
584            <primary sortas="b-readprofile">readprofile</primary>
585          </indexterm>
586        </listitem>
587      </varlistentry>
588
589      <varlistentry id="rename">
590        <term><command>rename</command></term>
591        <listitem>
592          <para>Renames the given files, replacing a given string with
593          another</para>
594          <indexterm zone="ch-system-util-linux-ng rename">
595            <primary sortas="b-rename">rename</primary>
596          </indexterm>
597        </listitem>
598      </varlistentry>
599
600      <varlistentry id="renice">
601        <term><command>renice</command></term>
602        <listitem>
603          <para>Alters the priority of running processes</para>
604          <indexterm zone="ch-system-util-linux-ng renice">
605            <primary sortas="b-renice">renice</primary>
606          </indexterm>
607        </listitem>
608      </varlistentry>
609
610      <varlistentry id="rev">
611        <term><command>rev</command></term>
612        <listitem>
613          <para>Reverses the lines of a given file</para>
614          <indexterm zone="ch-system-util-linux-ng rev">
615            <primary sortas="b-rev">rev</primary>
616          </indexterm>
617        </listitem>
618      </varlistentry>
619
620      <varlistentry id="rtcwake">
621        <term><command>rtcwake</command></term>
622        <listitem>
623          <para>Enters a system sleep state until a specified wakeup time</para>
624          <indexterm zone="ch-system-util-linux-ng rtcwake">
625            <primary sortas="b-rtcwake">rtcwake</primary>
626          </indexterm>
627        </listitem>
628      </varlistentry>
629
630      <varlistentry id="script">
631        <term><command>script</command></term>
632        <listitem>
633          <para>Makes a typescript of a terminal session</para>
634          <indexterm zone="ch-system-util-linux-ng script">
635            <primary sortas="b-script">script</primary>
636          </indexterm>
637        </listitem>
638      </varlistentry>
639
640      <varlistentry id="scriptreplay">
641        <term><command>scriptreplay</command></term>
642        <listitem>
643          <para>Plays back typescripts created by <command>script</command></para>
644          <indexterm zone="ch-system-util-linux-ng scriptreplay">
645            <primary sortas="b-scriptreplay">scriptreplay</primary>
646          </indexterm>
647        </listitem>
648      </varlistentry>
649
650      <varlistentry id="setarch">
651        <term><command>setarch</command></term>
652        <listitem>
653          <para>Changes reported architecture in new program environment and
654          sets personality flags</para>
655          <indexterm zone="ch-system-util-linux-ng setarch">
656            <primary sortas="b-setarch">setarch</primary>
657          </indexterm>
658        </listitem>
659      </varlistentry>
660
661      <varlistentry id="setsid">
662        <term><command>setsid</command></term>
663        <listitem>
664          <para>Runs the given program in a new session</para>
665          <indexterm zone="ch-system-util-linux-ng setsid">
666            <primary sortas="b-setsid">setsid</primary>
667          </indexterm>
668        </listitem>
669      </varlistentry>
670
671      <varlistentry id="setterm">
672        <term><command>setterm</command></term>
673        <listitem>
674          <para>Sets terminal attributes</para>
675          <indexterm zone="ch-system-util-linux-ng setterm">
676            <primary sortas="b-setterm">setterm</primary>
677          </indexterm>
678        </listitem>
679      </varlistentry>
680
681      <varlistentry id="sfdisk">
682        <term><command>sfdisk</command></term>
683        <listitem>
684          <para>A disk partition table manipulator</para>
685          <indexterm zone="ch-system-util-linux-ng sfdisk">
686            <primary sortas="b-sfdisk">sfdisk</primary>
687          </indexterm>
688        </listitem>
689      </varlistentry>
690
691      <varlistentry id="swapoff">
692        <term><command>swapoff</command></term>
693        <listitem>
694          <para>Disables devices and files for paging and swapping</para>
695          <indexterm zone="ch-system-util-linux-ng swapoff">
696            <primary sortas="b-swapoff">swapoff</primary>
697          </indexterm>
698        </listitem>
699      </varlistentry>
700
701      <varlistentry id="swapon">
702        <term><command>swapon</command></term>
703        <listitem>
704          <para>Enables devices and files for paging and swapping and
705          lists the devices and files currently in use</para>
706          <indexterm zone="ch-system-util-linux-ng swapon">
707            <primary sortas="b-swapon">swapon</primary>
708          </indexterm>
709        </listitem>
710      </varlistentry>
711
712      <varlistentry id="tailf">
713        <term><command>tailf</command></term>
714        <listitem>
715          <para>Tracks the growth of a log file. Displays the last 10 lines
716          of a log file, then continues displaying any new entries in the
717          log file as they are created</para>
718          <indexterm zone="ch-system-util-linux-ng tailf">
719            <primary sortas="b-tailf">tailf</primary>
720          </indexterm>
721        </listitem>
722      </varlistentry>
723
724      <varlistentry id="taskset">
725        <term><command>taskset</command></term>
726        <listitem>
727          <para>Retrieves or sets a process's CPU affinity</para>
728          <indexterm zone="ch-system-util-linux-ng taskset">
729            <primary sortas="b-taskset">taskset</primary>
730          </indexterm>
731        </listitem>
732      </varlistentry>
733
734      <varlistentry id="tunelp">
735        <term><command>tunelp</command></term>
736        <listitem>
737          <para>Tunes the parameters of the line printer</para>
738          <indexterm zone="ch-system-util-linux-ng tunelp">
739            <primary sortas="b-tunelp">tunelp</primary>
740          </indexterm>
741        </listitem>
742      </varlistentry>
743
744      <varlistentry id="ul">
745        <term><command>ul</command></term>
746        <listitem>
747          <para>A filter for translating underscores into escape sequences
748          indicating underlining for the terminal in use</para>
749          <indexterm zone="ch-system-util-linux-ng ul">
750            <primary sortas="b-ul">ul</primary>
751          </indexterm>
752        </listitem>
753      </varlistentry>
754
755      <varlistentry id="umount">
756        <term><command>umount</command></term>
757        <listitem>
758          <para>Disconnects a file system from the system's file tree</para>
759          <indexterm zone="ch-system-util-linux-ng umount">
760            <primary sortas="b-umount">umount</primary>
761          </indexterm>
762        </listitem>
763      </varlistentry>
764
765      <varlistentry id="whereis">
766        <term><command>whereis</command></term>
767        <listitem>
768          <para>Reports the location of the binary, source, and man page
769          for the given command</para>
770          <indexterm zone="ch-system-util-linux-ng whereis">
771            <primary sortas="b-whereis">whereis</primary>
772          </indexterm>
773        </listitem>
774      </varlistentry>
775
776      <varlistentry id="write">
777        <term><command>write</command></term>
778        <listitem>
779          <para>Sends a message to the given user <emphasis>if</emphasis> that
780          user has not disabled receipt of such messages</para>
781          <indexterm zone="ch-system-util-linux-ng write">
782            <primary sortas="b-write">write</primary>
783          </indexterm>
784        </listitem>
785      </varlistentry>
786
787      <varlistentry id="libblkid">
788        <term><filename class="libraryfile">libblkid</filename></term>
789        <listitem>
790          <para>Contains routines for device identification and token
791          extraction</para>
792          <indexterm zone="ch-system-util-linux-ng libblkid">
793            <primary sortas="c-libblkid">libblkid</primary>
794          </indexterm>
795        </listitem>
796      </varlistentry>
797
798      <varlistentry id="libuuid">
799        <term><filename class="libraryfile">libuuid</filename></term>
800        <listitem>
801          <para>Contains routines for generating unique identifiers for objects
802          that may be accessible beyond the local system</para>
803          <indexterm zone="ch-system-util-linux-ng libuuid">
804            <primary sortas="c-libuuid">libuuid</primary>
805          </indexterm>
806        </listitem>
807      </varlistentry>
808
809    </variablelist>
810
811  </sect2>
812
813</sect1>
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