source: chapter06/util-linux-ng.xml@ ba502c9

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Last change on this file since ba502c9 was fe05b08, checked in by Bruce Dubbs <bdubbs@…>, 14 years ago

Add installed directories information to
each package. Thanks to Chris Staub for the patch.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9285 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

  • Property mode set to 100644
File size: 33.3 KB
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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 <sect1info condition="script">
12 <productname>util-linux-ng</productname>
13 <productnumber>&util-linux-ng-version;</productnumber>
14 <address>&util-linux-ng-url;</address>
15 </sect1info>
16
17 <title>Util-linux-ng-&util-linux-ng-version;</title>
18
19 <indexterm zone="ch-system-util-linux-ng">
20 <primary sortas="a-Util-linux-ng">Util-linux-ng</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Util-linux-ng package contains miscellaneous utility programs.
27 Among them are utilities for handling file systems, consoles, partitions,
28 and messages.</para>
29
30 <segmentedlist>
31 <segtitle>&buildtime;</segtitle>
32 <segtitle>&diskspace;</segtitle>
33
34 <seglistitem>
35 <seg>&util-linux-ng-ch6-sbu;</seg>
36 <seg>&util-linux-ng-ch6-du;</seg>
37 </seglistitem>
38 </segmentedlist>
39
40 </sect2>
41
42 <sect2 role="installation">
43 <title>FHS compliance notes</title>
44
45 <para>The FHS recommends using the <filename
46 class="directory">/var/lib/hwclock</filename> directory instead of the
47 usual <filename class="directory">/etc</filename> directory as the
48 location for the <filename>adjtime</filename> file. To make the
49 <command>hwclock</command> program FHS-compliant, run the
50 following:</para>
51
52<screen><userinput remap="pre">sed -e 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
53 -i $(grep -rl '/etc/adjtime' .)
54mkdir -pv /var/lib/hwclock</userinput></screen>
55
56 </sect2>
57
58 <sect2 role="installation">
59 <title>Installation of Util-linux-ng</title>
60
61<screen><userinput remap="configure">./configure --enable-arch --enable-partx --enable-write</userinput></screen>
62
63 <variablelist>
64 <title>The meaning of the configure options:</title>
65
66 <varlistentry>
67 <term><parameter>--enable-arch</parameter></term>
68 <listitem>
69 <para>Enables building the <command>arch</command> program</para>
70 </listitem>
71 </varlistentry>
72 <varlistentry>
73 <term><parameter>--enable-partx</parameter></term>
74 <listitem>
75 <para>Enables building the <command>addpart</command>,
76 <command>delpart</command> and <command>partx</command>
77 programs</para>
78 </listitem>
79 </varlistentry>
80 <varlistentry>
81 <term><parameter>--enable-write</parameter></term>
82 <listitem>
83 <para>Enables building the <command>write</command> program</para>
84 </listitem>
85 </varlistentry>
86
87 </variablelist>
88
89 <para>Compile the package:</para>
90
91<screen><userinput remap="make">make</userinput></screen>
92
93 <para>This package does not come with a test suite.</para>
94
95 <para>Install the package:</para>
96
97<screen><userinput remap="install">make install</userinput></screen>
98
99 </sect2>
100
101 <sect2 id="contents-utillinux" role="content">
102 <title>Contents of Util-linux-ng</title>
103
104 <segmentedlist>
105 <segtitle>Installed programs</segtitle>
106 <segtitle>Installed libraries</segtitle>
107 <segtitle>Installed directories</segtitle>
108
109 <seglistitem>
110 <seg>addpart, agetty, arch, blkid, blockdev, cal, cfdisk, chkdupexe,
111 chrt, col, colcrt, colrm, column, ctrlaltdel, cytune, ddate, delpart,
112 dmesg, fdformat, fdisk, findfs, flock, fsck, fsck.cramfs, fsck.minix,
113 getopt, hexdump, hwclock, i386, ionice, ipcmk, ipcrm, ipcs, isosize,
114 ldattach, line, linux32, linux64, logger, look, losetup, lscpu,
115 mcookie, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, more, mount,
116 namei, partx, pg, pivot_root, readprofile, rename, renice, rev,
117 rtcwake, script, scriptreplay, setarch, setsid, setterm, sfdisk,
118 swapoff (link to swapon), swapon, switch_root, tailf, taskset, tunelp,
119 ul, umount, uuidd, uuidgen, wall, whereis, and write</seg>
120 <seg>libblkid.{a,so}, libuuid.{a,so}</seg>
121 <seg>/usr/share/getopt, /var/lib/hwclock</seg>
122 </seglistitem>
123 </segmentedlist>
124
125 <variablelist>
126 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
127 <?dbfo list-presentation="list"?>
128 <?dbhtml list-presentation="table"?>
129
130 <varlistentry id="addpart">
131 <term><command>addpart</command></term>
132 <listitem>
133 <para>Informs the Linux kernel of new partitions</para>
134 <indexterm zone="ch-system-util-linux-ng addpart">
135 <primary sortas="b-addpart">addpart</primary>
136 </indexterm>
137 </listitem>
138 </varlistentry>
139
140 <varlistentry id="agetty">
141 <term><command>agetty</command></term>
142 <listitem>
143 <para>Opens a tty port, prompts for a login name,
144 and then invokes the <command>login</command> program</para>
145 <indexterm zone="ch-system-util-linux-ng agetty">
146 <primary sortas="b-agetty">agetty</primary>
147 </indexterm>
148 </listitem>
149 </varlistentry>
150
151 <varlistentry id="arch">
152 <term><command>arch</command></term>
153 <listitem>
154 <para>Reports the machine's architecture</para>
155 <indexterm zone="ch-system-util-linux-ng arch">
156 <primary sortas="b-arch">arch</primary>
157 </indexterm>
158 </listitem>
159 </varlistentry>
160
161 <varlistentry id="blkid">
162 <term><command>blkid</command></term>
163 <listitem>
164 <para>A command line utility to locate and print block device
165 attributes</para>
166 <indexterm zone="ch-system-util-linux-ng blkid">
167 <primary sortas="b-blkid">blkid</primary>
168 </indexterm>
169 </listitem>
170 </varlistentry>
171
172 <varlistentry id="blockdev">
173 <term><command>blockdev</command></term>
174 <listitem>
175 <para>Allows users to call block device ioctls from the command
176 line</para>
177 <indexterm zone="ch-system-util-linux-ng blockdev">
178 <primary sortas="b-blockdev">blockdev</primary>
179 </indexterm>
180 </listitem>
181 </varlistentry>
182
183 <varlistentry id="cal">
184 <term><command>cal</command></term>
185 <listitem>
186 <para>Displays a simple calendar</para>
187 <indexterm zone="ch-system-util-linux-ng cal">
188 <primary sortas="b-cal">cal</primary>
189 </indexterm>
190 </listitem>
191 </varlistentry>
192
193 <varlistentry id="cfdisk">
194 <term><command>cfdisk</command></term>
195 <listitem>
196 <para>Manipulates the partition table of the given device</para>
197 <indexterm zone="ch-system-util-linux-ng cfdisk">
198 <primary sortas="b-cfdisk">cfdisk</primary>
199 </indexterm>
200 </listitem>
201 </varlistentry>
202
203 <varlistentry id="chkdupexe">
204 <term><command>chkdupexe</command></term>
205 <listitem>
206 <para>Finds duplicate executables</para>
207 <indexterm zone="ch-system-util-linux-ng chkdupexe">
208 <primary sortas="b-chkdupexe">chkdupexe</primary>
209 </indexterm>
210 </listitem>
211 </varlistentry>
212
213 <varlistentry id="chrt">
214 <term><command>chrt</command></term>
215 <listitem>
216 <para>Manipulates real-time attributes of a process</para>
217 <indexterm zone="ch-system-util-linux-ng chrt">
218 <primary sortas="b-chrt">chrt</primary>
219 </indexterm>
220 </listitem>
221 </varlistentry>
222
223 <varlistentry id="col">
224 <term><command>col</command></term>
225 <listitem>
226 <para>Filters out reverse line feeds</para>
227 <indexterm zone="ch-system-util-linux-ng col">
228 <primary sortas="b-col">col</primary>
229 </indexterm>
230 </listitem>
231 </varlistentry>
232
233 <varlistentry id="colcrt">
234 <term><command>colcrt</command></term>
235 <listitem>
236 <para>Filters <command>nroff</command> output for terminals
237 that lack some capabilities, such as overstriking and half-lines</para>
238 <indexterm zone="ch-system-util-linux-ng colcrt">
239 <primary sortas="b-colcrt">colcrt</primary>
240 </indexterm>
241 </listitem>
242 </varlistentry>
243
244 <varlistentry id="colrm">
245 <term><command>colrm</command></term>
246 <listitem>
247 <para>Filters out the given columns</para>
248 <indexterm zone="ch-system-util-linux-ng colrm">
249 <primary sortas="b-colrm">colrm</primary>
250 </indexterm>
251 </listitem>
252 </varlistentry>
253
254 <varlistentry id="column">
255 <term><command>column</command></term>
256 <listitem>
257 <para>Formats a given file into multiple columns</para>
258 <indexterm zone="ch-system-util-linux-ng column">
259 <primary sortas="b-column">column</primary>
260 </indexterm>
261 </listitem>
262 </varlistentry>
263
264 <varlistentry id="ctrlaltdel">
265 <term><command>ctrlaltdel</command></term>
266 <listitem>
267 <para>Sets the function of the Ctrl+Alt+Del key combination to a
268 hard or a soft reset</para>
269 <indexterm zone="ch-system-util-linux-ng ctrlaltdel">
270 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
271 </indexterm>
272 </listitem>
273 </varlistentry>
274
275 <varlistentry id="cytune">
276 <term><command>cytune</command></term>
277 <listitem>
278 <para>Tunes the parameters of the serial line drivers for
279 Cyclades cards</para>
280 <indexterm zone="ch-system-util-linux-ng cytune">
281 <primary sortas="b-cytune">cytune</primary>
282 </indexterm>
283 </listitem>
284 </varlistentry>
285
286 <varlistentry id="ddate">
287 <term><command>ddate</command></term>
288 <listitem>
289 <para>Gives the Discordian date or converts the given Gregorian date
290 to a Discordian one</para>
291 <indexterm zone="ch-system-util-linux-ng ddate">
292 <primary sortas="b-ddate">ddate</primary>
293 </indexterm>
294 </listitem>
295 </varlistentry>
296
297 <varlistentry id="delpart">
298 <term><command>delpart</command></term>
299 <listitem>
300 <para>Asks the Linux kernel to remove a partition</para>
301 <indexterm zone="ch-system-util-linux-ng delpart">
302 <primary sortas="b-delpart">delpart</primary>
303 </indexterm>
304 </listitem>
305 </varlistentry>
306
307 <varlistentry id="dmesg">
308 <term><command>dmesg</command></term>
309 <listitem>
310 <para>Dumps the kernel boot messages</para>
311 <indexterm zone="ch-system-util-linux-ng dmesg">
312 <primary sortas="b-dmesg">dmesg</primary>
313 </indexterm>
314 </listitem>
315 </varlistentry>
316
317 <varlistentry id="fdformat">
318 <term><command>fdformat</command></term>
319 <listitem>
320 <para>Low-level formats a floppy disk</para>
321 <indexterm zone="ch-system-util-linux-ng fdformat">
322 <primary sortas="b-fdformat">fdformat</primary>
323 </indexterm>
324 </listitem>
325 </varlistentry>
326
327 <varlistentry id="fdisk">
328 <term><command>fdisk</command></term>
329 <listitem>
330 <para>Manipulates the paritition table of the given device</para>
331 <indexterm zone="ch-system-util-linux-ng fdisk">
332 <primary sortas="b-fdisk">fdisk</primary>
333 </indexterm>
334 </listitem>
335 </varlistentry>
336
337 <varlistentry id="findfs">
338 <term><command>findfs</command></term>
339 <listitem>
340 <para>Finds a file system by label or Universally Unique Identifier
341 (UUID)</para>
342 <indexterm zone="ch-system-util-linux-ng findfs">
343 <primary sortas="b-findfs">findfs</primary>
344 </indexterm>
345 </listitem>
346 </varlistentry>
347
348 <varlistentry id="flock">
349 <term><command>flock</command></term>
350 <listitem>
351 <para>Acquires a file lock and then executes a command with the lock
352 held</para>
353 <indexterm zone="ch-system-util-linux-ng flock">
354 <primary sortas="b-flock">flock</primary>
355 </indexterm>
356 </listitem>
357 </varlistentry>
358
359 <varlistentry id="fsck">
360 <term><command>fsck</command></term>
361 <listitem>
362 <para>Is used to check, and optionally repair, file systems</para>
363 <indexterm zone="ch-system-util-linux-ng fsck">
364 <primary sortas="b-fsck">fsck</primary>
365 </indexterm>
366 </listitem>
367 </varlistentry>
368
369 <varlistentry id="fsck.cramfs">
370 <term><command>fsck.cramfs</command></term>
371 <listitem>
372 <para>Performs a consistency check on the Cramfs file system on the
373 given device</para>
374 <indexterm zone="ch-system-util-linux-ng fsck.cramfs">
375 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
376 </indexterm>
377 </listitem>
378 </varlistentry>
379
380 <varlistentry id="fsck.minix">
381 <term><command>fsck.minix</command></term>
382 <listitem>
383 <para>Performs a consistency check on the Minix file system on the
384 given device</para>
385 <indexterm zone="ch-system-util-linux-ng fsck.minix">
386 <primary sortas="b-fsck.minix">fsck.minix</primary>
387 </indexterm>
388 </listitem>
389 </varlistentry>
390
391 <varlistentry id="getopt">
392 <term><command>getopt</command></term>
393 <listitem>
394 <para>Parses options in the given command line</para>
395 <indexterm zone="ch-system-util-linux-ng getopt">
396 <primary sortas="b-getopt">getopt</primary>
397 </indexterm>
398 </listitem>
399 </varlistentry>
400
401 <varlistentry id="hexdump">
402 <term><command>hexdump</command></term>
403 <listitem>
404 <para>Dumps the given file in hexadecimal or in another given
405 format</para>
406 <indexterm zone="ch-system-util-linux-ng hexdump">
407 <primary sortas="b-hexdump">hexdump</primary>
408 </indexterm>
409 </listitem>
410 </varlistentry>
411
412 <varlistentry id="hwclock">
413 <term><command>hwclock</command></term>
414 <listitem>
415 <para>Reads or sets the system's hardware clock, also called
416 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
417 clock</para>
418 <indexterm zone="ch-system-util-linux-ng hwclock">
419 <primary sortas="b-hwclock">hwclock</primary>
420 </indexterm>
421 </listitem>
422 </varlistentry>
423
424 <varlistentry id="i386">
425 <term><command>i386</command></term>
426 <listitem>
427 <para>A symbolic link to setarch</para>
428 <indexterm zone="ch-system-util-linux-ng i386">
429 <primary sortas="b-i386">i386</primary>
430 </indexterm>
431 </listitem>
432 </varlistentry>
433
434 <varlistentry id="ionice">
435 <term><command>ionice</command></term>
436 <listitem>
437 <para>Gets or sets the io scheduling class and priority for a program</para>
438 <indexterm zone="ch-system-util-linux-ng ionice">
439 <primary sortas="b-ionice">ionice</primary>
440 </indexterm>
441 </listitem>
442 </varlistentry>
443
444 <varlistentry id="ipcmk">
445 <term><command>ipcmk</command></term>
446 <listitem>
447 <para>Creates various IPC resources</para>
448 <indexterm zone="ch-system-util-linux-ng ipcmk">
449 <primary sortas="b-ipcmk">ipcmk</primary>
450 </indexterm>
451 </listitem>
452 </varlistentry>
453
454 <varlistentry id="ipcrm">
455 <term><command>ipcrm</command></term>
456 <listitem>
457 <para>Removes the given Inter-Process Communication (IPC) resource</para>
458 <indexterm zone="ch-system-util-linux-ng ipcrm">
459 <primary sortas="b-ipcrm">ipcrm</primary>
460 </indexterm>
461 </listitem>
462 </varlistentry>
463
464 <varlistentry id="ipcs">
465 <term><command>ipcs</command></term>
466 <listitem>
467 <para>Provides IPC status information</para>
468 <indexterm zone="ch-system-util-linux-ng ipcs">
469 <primary sortas="b-ipcs">ipcs</primary>
470 </indexterm>
471 </listitem>
472 </varlistentry>
473
474 <varlistentry id="isosize">
475 <term><command>isosize</command></term>
476 <listitem>
477 <para>Reports the size of an iso9660 file system</para>
478 <indexterm zone="ch-system-util-linux-ng isosize">
479 <primary sortas="b-isosize">isosize</primary>
480 </indexterm>
481 </listitem>
482 </varlistentry>
483
484 <varlistentry id="ldattach">
485 <term><command>ldattach</command></term>
486 <listitem>
487 <para>Attaches a line discipline to a serial line</para>
488 <indexterm zone="ch-system-util-linux-ng ldattach">
489 <primary sortas="b-ldattach">ldattach</primary>
490 </indexterm>
491 </listitem>
492 </varlistentry>
493
494 <varlistentry id="line">
495 <term><command>line</command></term>
496 <listitem>
497 <para>Copies a single line</para>
498 <indexterm zone="ch-system-util-linux-ng line">
499 <primary sortas="b-line">line</primary>
500 </indexterm>
501 </listitem>
502 </varlistentry>
503
504 <varlistentry id="linux32">
505 <term><command>linux32</command></term>
506 <listitem>
507 <para>A symbolic link to setarch</para>
508 <indexterm zone="ch-system-util-linux-ng linux32">
509 <primary sortas="b-linux32">linux32</primary>
510 </indexterm>
511 </listitem>
512 </varlistentry>
513
514 <varlistentry id="linux64">
515 <term><command>linux64</command></term>
516 <listitem>
517 <para>A symbolic link to setarch</para>
518 <indexterm zone="ch-system-util-linux-ng linux64">
519 <primary sortas="b-linux64">linux64</primary>
520 </indexterm>
521 </listitem>
522 </varlistentry>
523
524 <varlistentry id="logger">
525 <term><command>logger</command></term>
526 <listitem>
527 <para>Enters the given message into the system log</para>
528 <indexterm zone="ch-system-util-linux-ng logger">
529 <primary sortas="b-logger">logger</primary>
530 </indexterm>
531 </listitem>
532 </varlistentry>
533
534 <varlistentry id="look">
535 <term><command>look</command></term>
536 <listitem>
537 <para>Displays lines that begin with the given string</para>
538 <indexterm zone="ch-system-util-linux-ng look">
539 <primary sortas="b-look">look</primary>
540 </indexterm>
541 </listitem>
542 </varlistentry>
543
544 <varlistentry id="losetup">
545 <term><command>losetup</command></term>
546 <listitem>
547 <para>Sets up and controls loop devices</para>
548 <indexterm zone="ch-system-util-linux-ng losetup">
549 <primary sortas="b-losetup">losetup</primary>
550 </indexterm>
551 </listitem>
552 </varlistentry>
553
554 <varlistentry id="lscpu">
555 <term><command>lscpu</command></term>
556 <listitem>
557 <para>Prints CPU architechture information</para>
558 <indexterm zone="ch-system-util-linux-ng lscpu">
559 <primary sortas="b-lscpu">lscpu</primary>
560 </indexterm>
561 </listitem>
562 </varlistentry>
563
564 <varlistentry id="mcookie">
565 <term><command>mcookie</command></term>
566 <listitem>
567 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
568 <command>xauth</command></para>
569 <indexterm zone="ch-system-util-linux-ng mcookie">
570 <primary sortas="b-mcookie">mcookie</primary>
571 </indexterm>
572 </listitem>
573 </varlistentry>
574
575 <varlistentry id="mkfs">
576 <term><command>mkfs</command></term>
577 <listitem>
578 <para>Builds a file system on a device (usually a hard disk
579 partition)</para>
580 <indexterm zone="ch-system-util-linux-ng mkfs">
581 <primary sortas="b-mkfs">mkfs</primary>
582 </indexterm>
583 </listitem>
584 </varlistentry>
585
586 <varlistentry id="mkfs.bfs">
587 <term><command>mkfs.bfs</command></term>
588 <listitem>
589 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
590 <indexterm zone="ch-system-util-linux-ng mkfs.bfs">
591 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
592 </indexterm>
593 </listitem>
594 </varlistentry>
595
596 <varlistentry id="mkfs.cramfs">
597 <term><command>mkfs.cramfs</command></term>
598 <listitem>
599 <para>Creates a cramfs file system</para>
600 <indexterm zone="ch-system-util-linux-ng mkfs.cramfs">
601 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
602 </indexterm>
603 </listitem>
604 </varlistentry>
605
606 <varlistentry id="mkfs.minix">
607 <term><command>mkfs.minix</command></term>
608 <listitem>
609 <para>Creates a Minix file system</para>
610 <indexterm zone="ch-system-util-linux-ng mkfs.minix">
611 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
612 </indexterm>
613 </listitem>
614 </varlistentry>
615
616 <varlistentry id="mkswap">
617 <term><command>mkswap</command></term>
618 <listitem>
619 <para>Initializes the given device or file to be used as a swap
620 area</para>
621 <indexterm zone="ch-system-util-linux-ng mkswap">
622 <primary sortas="b-mkswap">mkswap</primary>
623 </indexterm>
624 </listitem>
625 </varlistentry>
626
627 <varlistentry id="more">
628 <term><command>more</command></term>
629 <listitem>
630 <para>A filter for paging through text one screen at a time</para>
631 <indexterm zone="ch-system-util-linux-ng more">
632 <primary sortas="b-more">more</primary>
633 </indexterm>
634 </listitem>
635 </varlistentry>
636
637 <varlistentry id="mount">
638 <term><command>mount</command></term>
639 <listitem>
640 <para>Attaches the file system on the given device to a specified
641 directory in the file-system tree</para>
642 <indexterm zone="ch-system-util-linux-ng mount">
643 <primary sortas="b-mount">mount</primary>
644 </indexterm>
645 </listitem>
646 </varlistentry>
647
648 <varlistentry id="namei">
649 <term><command>namei</command></term>
650 <listitem>
651 <para>Shows the symbolic links in the given pathnames</para>
652 <indexterm zone="ch-system-util-linux-ng namei">
653 <primary sortas="b-namei">namei</primary>
654 </indexterm>
655 </listitem>
656 </varlistentry>
657
658 <varlistentry id="partx">
659 <term><command>partx</command></term>
660 <listitem>
661 <para>Tells the kernel about the presence and numbering of on-disk
662 partitions</para>
663 <indexterm zone="ch-system-util-linux-ng partx">
664 <primary sortas="b-partx">partx</primary>
665 </indexterm>
666 </listitem>
667 </varlistentry>
668
669 <varlistentry id="pg">
670 <term><command>pg</command></term>
671 <listitem>
672 <para>Displays a text file one screen full at a time</para>
673 <indexterm zone="ch-system-util-linux-ng pg">
674 <primary sortas="b-pg">pg</primary>
675 </indexterm>
676 </listitem>
677 </varlistentry>
678
679 <varlistentry id="pivot_root">
680 <term><command>pivot_root</command></term>
681 <listitem>
682 <para>Makes the given file system the new root file system of the
683 current process</para>
684 <indexterm zone="ch-system-util-linux-ng pivot_root">
685 <primary sortas="b-pivot_root">pivot_root</primary>
686 </indexterm>
687 </listitem>
688 </varlistentry>
689
690 <varlistentry id="readprofile">
691 <term><command>readprofile</command></term>
692 <listitem>
693 <para>Reads kernel profiling information</para>
694 <indexterm zone="ch-system-util-linux-ng readprofile">
695 <primary sortas="b-readprofile">readprofile</primary>
696 </indexterm>
697 </listitem>
698 </varlistentry>
699
700 <varlistentry id="rename">
701 <term><command>rename</command></term>
702 <listitem>
703 <para>Renames the given files, replacing a given string with
704 another</para>
705 <indexterm zone="ch-system-util-linux-ng rename">
706 <primary sortas="b-rename">rename</primary>
707 </indexterm>
708 </listitem>
709 </varlistentry>
710
711 <varlistentry id="renice">
712 <term><command>renice</command></term>
713 <listitem>
714 <para>Alters the priority of running processes</para>
715 <indexterm zone="ch-system-util-linux-ng renice">
716 <primary sortas="b-renice">renice</primary>
717 </indexterm>
718 </listitem>
719 </varlistentry>
720
721 <varlistentry id="rev">
722 <term><command>rev</command></term>
723 <listitem>
724 <para>Reverses the lines of a given file</para>
725 <indexterm zone="ch-system-util-linux-ng rev">
726 <primary sortas="b-rev">rev</primary>
727 </indexterm>
728 </listitem>
729 </varlistentry>
730
731 <varlistentry id="rtcwake">
732 <term><command>rtcwake</command></term>
733 <listitem>
734 <para>Used to enter a system sleep state until specified wakeup
735 time</para>
736 <indexterm zone="ch-system-util-linux-ng rtcwake">
737 <primary sortas="b-rtcwake">rtcwake</primary>
738 </indexterm>
739 </listitem>
740 </varlistentry>
741
742 <varlistentry id="script">
743 <term><command>script</command></term>
744 <listitem>
745 <para>Makes a typescript of a terminal session</para>
746 <indexterm zone="ch-system-util-linux-ng script">
747 <primary sortas="b-script">script</primary>
748 </indexterm>
749 </listitem>
750 </varlistentry>
751
752 <varlistentry id="scriptreplay">
753 <term><command>scriptreplay</command></term>
754 <listitem>
755 <para>Plays back typescripts using timing information</para>
756 <indexterm zone="ch-system-util-linux-ng scriptreplay">
757 <primary sortas="b-scriptreplay">scriptreplay</primary>
758 </indexterm>
759 </listitem>
760 </varlistentry>
761
762 <varlistentry id="setarch">
763 <term><command>setarch</command></term>
764 <listitem>
765 <para>Changes reported architecture in a new program environment and
766 sets personality flags</para>
767 <indexterm zone="ch-system-util-linux-ng setarch">
768 <primary sortas="b-setarch">setarch</primary>
769 </indexterm>
770 </listitem>
771 </varlistentry>
772
773 <varlistentry id="setsid">
774 <term><command>setsid</command></term>
775 <listitem>
776 <para>Runs the given program in a new session</para>
777 <indexterm zone="ch-system-util-linux-ng setsid">
778 <primary sortas="b-setsid">setsid</primary>
779 </indexterm>
780 </listitem>
781 </varlistentry>
782
783 <varlistentry id="setterm">
784 <term><command>setterm</command></term>
785 <listitem>
786 <para>Sets terminal attributes</para>
787 <indexterm zone="ch-system-util-linux-ng setterm">
788 <primary sortas="b-setterm">setterm</primary>
789 </indexterm>
790 </listitem>
791 </varlistentry>
792
793 <varlistentry id="sfdisk">
794 <term><command>sfdisk</command></term>
795 <listitem>
796 <para>A disk partition table manipulator</para>
797 <indexterm zone="ch-system-util-linux-ng sfdisk">
798 <primary sortas="b-sfdisk">sfdisk</primary>
799 </indexterm>
800 </listitem>
801 </varlistentry>
802
803 <varlistentry id="swapoff">
804 <term><command>swapoff</command></term>
805 <listitem>
806 <para>Disables devices and files for paging and swapping</para>
807 <indexterm zone="ch-system-util-linux-ng swapoff">
808 <primary sortas="b-swapoff">swapoff</primary>
809 </indexterm>
810 </listitem>
811 </varlistentry>
812
813 <varlistentry id="swapon">
814 <term><command>swapon</command></term>
815 <listitem>
816 <para>Enables devices and files for paging and swapping and
817 lists the devices and files currently in use</para>
818 <indexterm zone="ch-system-util-linux-ng swapon">
819 <primary sortas="b-swapon">swapon</primary>
820 </indexterm>
821 </listitem>
822 </varlistentry>
823
824 <varlistentry id="switch_root">
825 <term><command>switch_root</command></term>
826 <listitem>
827 <para>Switches to another filesystem as the root of the mount tree</para>
828 <indexterm zone="ch-system-util-linux-ng switch_root">
829 <primary sortas="b-switch_root">switch_root</primary>
830 </indexterm>
831 </listitem>
832 </varlistentry>
833
834 <varlistentry id="tailf">
835 <term><command>tailf</command></term>
836 <listitem>
837 <para>Tracks the growth of a log file. Displays the last 10 lines
838 of a log file, then continues displaying any new entries in the
839 log file as they are created</para>
840 <indexterm zone="ch-system-util-linux-ng tailf">
841 <primary sortas="b-tailf">tailf</primary>
842 </indexterm>
843 </listitem>
844 </varlistentry>
845
846 <varlistentry id="taskset">
847 <term><command>taskset</command></term>
848 <listitem>
849 <para>Retrieves or sets a process' CPU affinity</para>
850 <indexterm zone="ch-system-util-linux-ng taskset">
851 <primary sortas="b-taskset">taskset</primary>
852 </indexterm>
853 </listitem>
854 </varlistentry>
855
856 <varlistentry id="tunelp">
857 <term><command>tunelp</command></term>
858 <listitem>
859 <para>Tunes the parameters of the line printer</para>
860 <indexterm zone="ch-system-util-linux-ng tunelp">
861 <primary sortas="b-tunelp">tunelp</primary>
862 </indexterm>
863 </listitem>
864 </varlistentry>
865
866 <varlistentry id="ul">
867 <term><command>ul</command></term>
868 <listitem>
869 <para>A filter for translating underscores into escape sequences
870 indicating underlining for the terminal in use</para>
871 <indexterm zone="ch-system-util-linux-ng ul">
872 <primary sortas="b-ul">ul</primary>
873 </indexterm>
874 </listitem>
875 </varlistentry>
876
877 <varlistentry id="umount">
878 <term><command>umount</command></term>
879 <listitem>
880 <para>Disconnects a file system from the system's file tree</para>
881 <indexterm zone="ch-system-util-linux-ng umount">
882 <primary sortas="b-umount">umount</primary>
883 </indexterm>
884 </listitem>
885 </varlistentry>
886
887 <varlistentry id="uuidd">
888 <term><command>uuidd</command></term>
889 <listitem>
890 <para>A daemon used by the UUID library to generate time-based
891 UUIDs in a secure and guranteed-unique fashion.</para>
892 <indexterm zone="ch-system-util-linux-ng uuidd">
893 <primary sortas="b-uuidd">uuidd</primary>
894 </indexterm>
895 </listitem>
896 </varlistentry>
897
898 <varlistentry id="uuidgen">
899 <term><command>uuidgen</command></term>
900 <listitem>
901 <para>Creates new UUIDs. Each new UUID can reasonably be considered
902 unique among all UUIDs created, on the local system and on other
903 systems, in the past and in the future</para>
904 <indexterm zone="ch-system-util-linux-ng uuidgen">
905 <primary sortas="b-uuidgen">uuidgen</primary>
906 </indexterm>
907 </listitem>
908 </varlistentry>
909
910 <varlistentry id="wall">
911 <term><command>wall</command></term>
912 <listitem>
913 <para>Displays the contents of a file or, by default, its standard
914 input, on the terminals of all currently logged in users</para>
915 <indexterm zone="ch-system-util-linux-ng wall">
916 <primary sortas="b-wall">wall</primary>
917 </indexterm>
918 </listitem>
919 </varlistentry>
920
921 <varlistentry id="whereis">
922 <term><command>whereis</command></term>
923 <listitem>
924 <para>Reports the location of the binary, source, and man page
925 for the given command</para>
926 <indexterm zone="ch-system-util-linux-ng whereis">
927 <primary sortas="b-whereis">whereis</primary>
928 </indexterm>
929 </listitem>
930 </varlistentry>
931
932 <varlistentry id="write">
933 <term><command>write</command></term>
934 <listitem>
935 <para>Sends a message to the given user <emphasis>if</emphasis> that
936 user has not disabled receipt of such messages</para>
937 <indexterm zone="ch-system-util-linux-ng write">
938 <primary sortas="b-write">write</primary>
939 </indexterm>
940 </listitem>
941 </varlistentry>
942
943 <varlistentry id="libblkid">
944 <term><filename class="libraryfile">libblkid</filename></term>
945 <listitem>
946 <para>Contains routines for device identification and token
947 extraction</para>
948 <indexterm zone="ch-system-util-linux-ng libblkid">
949 <primary sortas="c-libblkid">libblkid</primary>
950 </indexterm>
951 </listitem>
952 </varlistentry>
953
954 <varlistentry id="libuuid">
955 <term><filename class="libraryfile">libuuid</filename></term>
956 <listitem>
957 <para>Contains routines for generating unique identifiers for objects
958 that may be accessible beyond the local system</para>
959 <indexterm zone="ch-system-util-linux-ng libuuid">
960 <primary sortas="c-libuuid">libuuid</primary>
961 </indexterm>
962 </listitem>
963 </varlistentry>
964
965 </variablelist>
966
967 </sect2>
968
969</sect1>
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