source: chapter06/util-linux.xml@ 47849a7

10.0 10.0-rc1 10.1 10.1-rc1 11.0 11.0-rc1 11.0-rc2 11.0-rc3 11.1 11.1-rc1 11.2 11.2-rc1 11.3 11.3-rc1 12.0 12.0-rc1 12.1 12.1-rc1 6.3 6.4 6.5 6.6 6.7 6.8 7.0 7.1 7.2 7.3 7.4 7.5 7.5-systemd 7.6 7.6-systemd 7.7 7.7-systemd 7.8 7.8-systemd 7.9 7.9-systemd 8.0 8.1 8.2 8.3 8.4 9.0 9.1 arm bdubbs/gcc13 ml-11.0 multilib renodr/libudev-from-systemd s6-init trunk xry111/arm64 xry111/arm64-12.0 xry111/clfs-ng xry111/lfs-next xry111/loongarch xry111/loongarch-12.0 xry111/loongarch-12.1 xry111/mips64el xry111/pip3 xry111/rust-wip-20221008 xry111/update-glibc
Last change on this file since 47849a7 was 47849a7, checked in by Matthew Burgess <matthew@…>, 18 years ago

Remove swapdev from the list of programs installed by util-linux.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7636 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

  • Property mode set to 100644
File size: 25.5 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. Among
21 them are utilities for handling file systems, consoles, partitions, and
22 messages.</para>
23
24 <segmentedlist>
25 <segtitle>&buildtime;</segtitle>
26 <segtitle>&diskspace;</segtitle>
27
28 <seglistitem>
29 <seg>&util-linux-ch6-sbu;</seg>
30 <seg>&util-linux-ch6-du;</seg>
31 </seglistitem>
32 </segmentedlist>
33
34 </sect2>
35
36 <sect2 role="installation">
37 <title>FHS compliance notes</title>
38
39 <para>The FHS recommends using the <filename
40 class="directory">/var/lib/hwclock</filename> directory instead of the
41 usual <filename class="directory">/etc</filename> directory as the
42 location for the <filename>adjtime</filename> file. To make the
43 <command>hwclock</command> program FHS-compliant, run the
44 following:</para>
45
46<screen><userinput>sed -i 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
47 hwclock/hwclock.c
48mkdir -p /var/lib/hwclock</userinput></screen>
49
50 </sect2>
51
52 <sect2 role="installation">
53 <title>Installation of Util-linux</title>
54
55 <para>Util-linux fails to compile against newer versions of Linux-Libc-Headers.
56 The following patch properly fixes this issue:</para>
57
58<screen><userinput>patch -Np1 -i ../&util-linux-cramfs-patch;</userinput></screen>
59
60 <para>Prepare Util-linux for compilation:</para>
61
62<screen><userinput>./configure</userinput></screen>
63
64 <para>Compile the package:</para>
65
66<screen><userinput>make HAVE_KILL=yes HAVE_SLN=yes</userinput></screen>
67
68 <variablelist>
69 <title>The meaning of the make parameters:</title>
70
71 <varlistentry>
72 <term><parameter>HAVE_KILL=yes</parameter></term>
73 <listitem>
74 <para>This prevents the <command>kill</command> program (already
75 installed by Procps) from being built and installed again.</para>
76 </listitem>
77 </varlistentry>
78
79 <varlistentry>
80 <term><parameter>HAVE_SLN=yes</parameter></term>
81 <listitem>
82 <para>This prevents the <command>sln</command> program (a
83 statically linked version of <command>ln</command> already installed
84 by Glibc) from being built and installed again.</para>
85 </listitem>
86 </varlistentry>
87
88 </variablelist>
89
90 <para>This package does not come with a test suite.</para>
91
92 <para>Install the package:</para>
93
94<screen><userinput>make HAVE_KILL=yes HAVE_SLN=yes install</userinput></screen>
95
96 </sect2>
97
98 <sect2 id="contents-utillinux" role="content">
99 <title>Contents of Util-linux</title>
100
101 <segmentedlist>
102 <segtitle>Installed programs</segtitle>
103
104 <seglistitem>
105 <seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
106 colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat,
107 fdisk, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
108 ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs,
109 mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root,
110 ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev,
111 rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk,
112 swapoff (link to swapon), swapon, tunelp, ul, umount, vidmode
113 (link to rdev), whereis, and write</seg>
114 </seglistitem>
115 </segmentedlist>
116
117 <variablelist>
118 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
119 <?dbfo list-presentation="list"?>
120 <?dbhtml list-presentation="table"?>
121
122 <varlistentry id="agetty">
123 <term><command>agetty</command></term>
124 <listitem>
125 <para>Opens a tty port, prompts for a login name,
126 and then invokes the <command>login</command> program</para>
127 <indexterm zone="ch-system-util-linux agetty">
128 <primary sortas="b-agetty">agetty</primary>
129 </indexterm>
130 </listitem>
131 </varlistentry>
132
133 <varlistentry id="arch">
134 <term><command>arch</command></term>
135 <listitem>
136 <para>Reports the machine's architecture</para>
137 <indexterm zone="ch-system-util-linux arch">
138 <primary sortas="b-arch">arch</primary>
139 </indexterm>
140 </listitem>
141 </varlistentry>
142
143 <varlistentry id="blockdev">
144 <term><command>blockdev</command></term>
145 <listitem>
146 <para>Allows users to call block device ioctls from the command
147 line</para>
148 <indexterm zone="ch-system-util-linux blockdev">
149 <primary sortas="b-blockdev">blockdev</primary>
150 </indexterm>
151 </listitem>
152 </varlistentry>
153
154 <varlistentry id="cal">
155 <term><command>cal</command></term>
156 <listitem>
157 <para>Displays a simple calendar</para>
158 <indexterm zone="ch-system-util-linux cal">
159 <primary sortas="b-cal">cal</primary>
160 </indexterm>
161 </listitem>
162 </varlistentry>
163
164 <varlistentry id="cfdisk">
165 <term><command>cfdisk</command></term>
166 <listitem>
167 <para>Manipulates the partition table of the given device</para>
168 <indexterm zone="ch-system-util-linux cfdisk">
169 <primary sortas="b-cfdisk">cfdisk</primary>
170 </indexterm>
171 </listitem>
172 </varlistentry>
173
174 <varlistentry id="chkdupexe">
175 <term><command>chkdupexe</command></term>
176 <listitem>
177 <para>Finds duplicate executables</para>
178 <indexterm zone="ch-system-util-linux chkdupexe">
179 <primary sortas="b-chkdupexe">chkdupexe</primary>
180 </indexterm>
181 </listitem>
182 </varlistentry>
183
184 <varlistentry id="col">
185 <term><command>col</command></term>
186 <listitem>
187 <para>Filters out reverse line feeds</para>
188 <indexterm zone="ch-system-util-linux col">
189 <primary sortas="b-col">col</primary>
190 </indexterm>
191 </listitem>
192 </varlistentry>
193
194 <varlistentry id="colcrt">
195 <term><command>colcrt</command></term>
196 <listitem>
197 <para>Filters <command>nroff</command> output for terminals
198 that lack some capabilities, such as overstriking and half-lines</para>
199 <indexterm zone="ch-system-util-linux colcrt">
200 <primary sortas="b-colcrt">colcrt</primary>
201 </indexterm>
202 </listitem>
203 </varlistentry>
204
205 <varlistentry id="colrm">
206 <term><command>colrm</command></term>
207 <listitem>
208 <para>Filters out the given columns</para>
209 <indexterm zone="ch-system-util-linux colrm">
210 <primary sortas="b-colrm">colrm</primary>
211 </indexterm>
212 </listitem>
213 </varlistentry>
214
215 <varlistentry id="column">
216 <term><command>column</command></term>
217 <listitem>
218 <para>Formats a given file into multiple columns</para>
219 <indexterm zone="ch-system-util-linux column">
220 <primary sortas="b-column">column</primary>
221 </indexterm>
222 </listitem>
223 </varlistentry>
224
225 <varlistentry id="ctrlaltdel">
226 <term><command>ctrlaltdel</command></term>
227 <listitem>
228 <para>Sets the function of the Ctrl+Alt+Del key combination to a
229 hard or a soft reset</para>
230 <indexterm zone="ch-system-util-linux ctrlaltdel">
231 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
232 </indexterm>
233 </listitem>
234 </varlistentry>
235
236 <varlistentry id="cytune">
237 <term><command>cytune</command></term>
238 <listitem>
239 <para>Tunes the parameters of the serial line drivers for
240 Cyclades cards</para>
241 <indexterm zone="ch-system-util-linux cytune">
242 <primary sortas="b-cytune">cytune</primary>
243 </indexterm>
244 </listitem>
245 </varlistentry>
246
247 <varlistentry id="ddate">
248 <term><command>ddate</command></term>
249 <listitem>
250 <para>Gives the Discordian date or converts the given Gregorian date
251 to a Discordian one</para>
252 <indexterm zone="ch-system-util-linux ddate">
253 <primary sortas="b-ddate">ddate</primary>
254 </indexterm>
255 </listitem>
256 </varlistentry>
257
258 <varlistentry id="dmesg">
259 <term><command>dmesg</command></term>
260 <listitem>
261 <para>Dumps the kernel boot messages</para>
262 <indexterm zone="ch-system-util-linux dmesg">
263 <primary sortas="b-dmesg">dmesg</primary>
264 </indexterm>
265 </listitem>
266 </varlistentry>
267
268 <varlistentry id="elvtune">
269 <term><command>elvtune</command></term>
270 <listitem>
271 <para>Tunes the performance and interactivity of a block
272 device</para>
273 <indexterm zone="ch-system-util-linux elvtune">
274 <primary sortas="b-elvtune">elvtune</primary>
275 </indexterm>
276 </listitem>
277 </varlistentry>
278
279 <varlistentry id="fdformat">
280 <term><command>fdformat</command></term>
281 <listitem>
282 <para>Low-level formats a floppy disk</para>
283 <indexterm zone="ch-system-util-linux fdformat">
284 <primary sortas="b-fdformat">fdformat</primary>
285 </indexterm>
286 </listitem>
287 </varlistentry>
288
289 <varlistentry id="fdisk">
290 <term><command>fdisk</command></term>
291 <listitem>
292 <para>Manipulates the partition table of the given device</para>
293 <indexterm zone="ch-system-util-linux fdisk">
294 <primary sortas="b-fdisk">fdisk</primary>
295 </indexterm>
296 </listitem>
297 </varlistentry>
298
299 <varlistentry id="fsck.cramfs">
300 <term><command>fsck.cramfs</command></term>
301 <listitem>
302 <para>Performs a consistency check on the Cramfs file system on the
303 given device</para>
304 <indexterm zone="ch-system-util-linux fsck.cramfs">
305 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
306 </indexterm>
307 </listitem>
308 </varlistentry>
309
310 <varlistentry id="fsck.minix">
311 <term><command>fsck.minix</command></term>
312 <listitem>
313 <para>Performs a consistency check on the Minix file system on the
314 given device</para>
315 <indexterm zone="ch-system-util-linux fsck.minix">
316 <primary sortas="b-fsck.minix">fsck.minix</primary>
317 </indexterm>
318 </listitem>
319 </varlistentry>
320
321 <varlistentry id="getopt">
322 <term><command>getopt</command></term>
323 <listitem>
324 <para>Parses options in the given command line</para>
325 <indexterm zone="ch-system-util-linux getopt">
326 <primary sortas="b-getopt">getopt</primary>
327 </indexterm>
328 </listitem>
329 </varlistentry>
330
331 <varlistentry id="hexdump">
332 <term><command>hexdump</command></term>
333 <listitem>
334 <para>Dumps the given file in hexadecimal or in another given
335 format</para>
336 <indexterm zone="ch-system-util-linux hexdump">
337 <primary sortas="b-hexdump">hexdump</primary>
338 </indexterm>
339 </listitem>
340 </varlistentry>
341
342 <varlistentry id="hwclock">
343 <term><command>hwclock</command></term>
344 <listitem>
345 <para>Reads or sets the system's hardware clock, also called
346 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
347 clock</para>
348 <indexterm zone="ch-system-util-linux hwclock">
349 <primary sortas="b-hwclock">hwclock</primary>
350 </indexterm>
351 </listitem>
352 </varlistentry>
353
354 <varlistentry id="ipcrm">
355 <term><command>ipcrm</command></term>
356 <listitem>
357 <para>Removes the given Inter-Process Communication (IPC) resource</para>
358 <indexterm zone="ch-system-util-linux ipcrm">
359 <primary sortas="b-ipcrm">ipcrm</primary>
360 </indexterm>
361 </listitem>
362 </varlistentry>
363
364 <varlistentry id="ipcs">
365 <term><command>ipcs</command></term>
366 <listitem>
367 <para>Provides IPC status information</para>
368 <indexterm zone="ch-system-util-linux ipcs">
369 <primary sortas="b-ipcs">ipcs</primary>
370 </indexterm>
371 </listitem>
372 </varlistentry>
373
374 <varlistentry id="isosize">
375 <term><command>isosize</command></term>
376 <listitem>
377 <para>Reports the size of an iso9660 file system</para>
378 <indexterm zone="ch-system-util-linux isosize">
379 <primary sortas="b-isosize">isosize</primary>
380 </indexterm>
381 </listitem>
382 </varlistentry>
383
384 <varlistentry id="line">
385 <term><command>line</command></term>
386 <listitem>
387 <para>Copies a single line</para>
388 <indexterm zone="ch-system-util-linux line">
389 <primary sortas="b-line">line</primary>
390 </indexterm>
391 </listitem>
392 </varlistentry>
393
394 <varlistentry id="logger">
395 <term><command>logger</command></term>
396 <listitem>
397 <para>Enters the given message into the system log</para>
398 <indexterm zone="ch-system-util-linux logger">
399 <primary sortas="b-logger">logger</primary>
400 </indexterm>
401 </listitem>
402 </varlistentry>
403
404 <varlistentry id="look">
405 <term><command>look</command></term>
406 <listitem>
407 <para>Displays lines that begin with the given string</para>
408 <indexterm zone="ch-system-util-linux look">
409 <primary sortas="b-look">look</primary>
410 </indexterm>
411 </listitem>
412 </varlistentry>
413
414 <varlistentry id="losetup">
415 <term><command>losetup</command></term>
416 <listitem>
417 <para>Sets up and controls loop devices</para>
418 <indexterm zone="ch-system-util-linux losetup">
419 <primary sortas="b-losetup">losetup</primary>
420 </indexterm>
421 </listitem>
422 </varlistentry>
423
424 <varlistentry id="mcookie">
425 <term><command>mcookie</command></term>
426 <listitem>
427 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
428 <command>xauth</command></para>
429 <indexterm zone="ch-system-util-linux mcookie">
430 <primary sortas="b-mcookie">mcookie</primary>
431 </indexterm>
432 </listitem>
433 </varlistentry>
434
435 <varlistentry id="mkfs">
436 <term><command>mkfs</command></term>
437 <listitem>
438 <para>Builds a file system on a device (usually a hard disk
439 partition)</para>
440 <indexterm zone="ch-system-util-linux mkfs">
441 <primary sortas="b-mkfs">mkfs</primary>
442 </indexterm>
443 </listitem>
444 </varlistentry>
445
446 <varlistentry id="mkfs.bfs">
447 <term><command>mkfs.bfs</command></term>
448 <listitem>
449 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
450 <indexterm zone="ch-system-util-linux mkfs.bfs">
451 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
452 </indexterm>
453 </listitem>
454 </varlistentry>
455
456 <varlistentry id="mkfs.cramfs">
457 <term><command>mkfs.cramfs</command></term>
458 <listitem>
459 <para>Creates a cramfs file system</para>
460 <indexterm zone="ch-system-util-linux mkfs.cramfs">
461 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
462 </indexterm>
463 </listitem>
464 </varlistentry>
465
466 <varlistentry id="mkfs.minix">
467 <term><command>mkfs.minix</command></term>
468 <listitem>
469 <para>Creates a Minix file system</para>
470 <indexterm zone="ch-system-util-linux mkfs.minix">
471 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="mkswap">
477 <term><command>mkswap</command></term>
478 <listitem>
479 <para>Initializes the given device or file to be used as a swap
480 area</para>
481 <indexterm zone="ch-system-util-linux mkswap">
482 <primary sortas="b-mkswap">mkswap</primary>
483 </indexterm>
484 </listitem>
485 </varlistentry>
486
487 <varlistentry id="more">
488 <term><command>more</command></term>
489 <listitem>
490 <para>A filter for paging through text one screen at a time</para>
491 <indexterm zone="ch-system-util-linux more">
492 <primary sortas="b-more">more</primary>
493 </indexterm>
494 </listitem>
495 </varlistentry>
496
497 <varlistentry id="mount">
498 <term><command>mount</command></term>
499 <listitem>
500 <para>Attaches the file system on the given device to a specified
501 directory in the file-system tree</para>
502 <indexterm zone="ch-system-util-linux mount">
503 <primary sortas="b-mount">mount</primary>
504 </indexterm>
505 </listitem>
506 </varlistentry>
507
508 <varlistentry id="namei">
509 <term><command>namei</command></term>
510 <listitem>
511 <para>Shows the symbolic links in the given pathnames</para>
512 <indexterm zone="ch-system-util-linux namei">
513 <primary sortas="b-namei">namei</primary>
514 </indexterm>
515 </listitem>
516 </varlistentry>
517
518 <varlistentry id="pg">
519 <term><command>pg</command></term>
520 <listitem>
521 <para>Displays a text file one screen full at a time</para>
522 <indexterm zone="ch-system-util-linux pg">
523 <primary sortas="b-pg">pg</primary>
524 </indexterm>
525 </listitem>
526 </varlistentry>
527
528 <varlistentry id="pivot_root">
529 <term><command>pivot_root</command></term>
530 <listitem>
531 <para>Makes the given file system the new root file system of the
532 current process</para>
533 <indexterm zone="ch-system-util-linux pivot_root">
534 <primary sortas="b-pivot_root">pivot_root</primary>
535 </indexterm>
536 </listitem>
537 </varlistentry>
538
539 <varlistentry id="ramsize">
540 <term><command>ramsize</command></term>
541 <listitem>
542 <para>Sets the size of the RAM disk in a bootable image</para>
543 <indexterm zone="ch-system-util-linux ramsize">
544 <primary sortas="b-ramsize">ramsize</primary>
545 </indexterm>
546 </listitem>
547 </varlistentry>
548
549 <varlistentry id="raw">
550 <term><command>raw</command></term>
551 <listitem>
552 <para>Used to bind a Linux raw character device to a block
553 device</para>
554 <indexterm zone="ch-system-util-linux raw">
555 <primary sortas="b-raw">raw</primary>
556 </indexterm>
557 </listitem>
558 </varlistentry>
559
560 <varlistentry id="rdev">
561 <term><command>rdev</command></term>
562 <listitem>
563 <para>Queries and sets the root device, among other things, in a
564 bootable image</para>
565 <indexterm zone="ch-system-util-linux rdev">
566 <primary sortas="b-rdev">rdev</primary>
567 </indexterm>
568 </listitem>
569 </varlistentry>
570
571 <varlistentry id="readprofile">
572 <term><command>readprofile</command></term>
573 <listitem>
574 <para>Reads kernel profiling information</para>
575 <indexterm zone="ch-system-util-linux readprofile">
576 <primary sortas="b-readprofile">readprofile</primary>
577 </indexterm>
578 </listitem>
579 </varlistentry>
580
581 <varlistentry id="rename">
582 <term><command>rename</command></term>
583 <listitem>
584 <para>Renames the given files, replacing a given string with
585 another</para>
586 <indexterm zone="ch-system-util-linux rename">
587 <primary sortas="b-rename">rename</primary>
588 </indexterm>
589 </listitem>
590 </varlistentry>
591
592 <varlistentry id="renice">
593 <term><command>renice</command></term>
594 <listitem>
595 <para>Alters the priority of running processes</para>
596 <indexterm zone="ch-system-util-linux renice">
597 <primary sortas="b-renice">renice</primary>
598 </indexterm>
599 </listitem>
600 </varlistentry>
601
602 <varlistentry id="rev">
603 <term><command>rev</command></term>
604 <listitem>
605 <para>Reverses the lines of a given file</para>
606 <indexterm zone="ch-system-util-linux rev">
607 <primary sortas="b-rev">rev</primary>
608 </indexterm>
609 </listitem>
610 </varlistentry>
611
612 <varlistentry id="rootflags">
613 <term><command>rootflags</command></term>
614 <listitem>
615 <para>Sets the rootflags in a bootable image</para>
616 <indexterm zone="ch-system-util-linux rootflags">
617 <primary sortas="b-rootflags">rootflags</primary>
618 </indexterm>
619 </listitem>
620 </varlistentry>
621
622 <varlistentry id="script">
623 <term><command>script</command></term>
624 <listitem>
625 <para>Makes a typescript of a terminal session</para>
626 <indexterm zone="ch-system-util-linux script">
627 <primary sortas="b-script">script</primary>
628 </indexterm>
629 </listitem>
630 </varlistentry>
631
632 <varlistentry id="setfdprm">
633 <term><command>setfdprm</command></term>
634 <listitem>
635 <para>Sets user-provided floppy disk parameters</para>
636 <indexterm zone="ch-system-util-linux setfdprm">
637 <primary sortas="b-setfdprm">setfdprm</primary>
638 </indexterm>
639 </listitem>
640 </varlistentry>
641
642 <varlistentry id="setsid">
643 <term><command>setsid</command></term>
644 <listitem>
645 <para>Runs the given program in a new session</para>
646 <indexterm zone="ch-system-util-linux setsid">
647 <primary sortas="b-setsid">setsid</primary>
648 </indexterm>
649 </listitem>
650 </varlistentry>
651
652 <varlistentry id="setterm">
653 <term><command>setterm</command></term>
654 <listitem>
655 <para>Sets terminal attributes</para>
656 <indexterm zone="ch-system-util-linux setterm">
657 <primary sortas="b-setterm">setterm</primary>
658 </indexterm>
659 </listitem>
660 </varlistentry>
661
662 <varlistentry id="sfdisk">
663 <term><command>sfdisk</command></term>
664 <listitem>
665 <para>A disk partition table manipulator</para>
666 <indexterm zone="ch-system-util-linux sfdisk">
667 <primary sortas="b-sfdisk">sfdisk</primary>
668 </indexterm>
669 </listitem>
670 </varlistentry>
671
672 <varlistentry id="swapoff">
673 <term><command>swapoff</command></term>
674 <listitem>
675 <para>Disables devices and files for paging and swapping</para>
676 <indexterm zone="ch-system-util-linux swapoff">
677 <primary sortas="b-swapoff">swapoff</primary>
678 </indexterm>
679 </listitem>
680 </varlistentry>
681
682 <varlistentry id="swapon">
683 <term><command>swapon</command></term>
684 <listitem>
685 <para>Enables devices and files for paging and swapping and
686 lists the devices and files currently in use</para>
687 <indexterm zone="ch-system-util-linux swapon">
688 <primary sortas="b-swapon">swapon</primary>
689 </indexterm>
690 </listitem>
691 </varlistentry>
692
693 <varlistentry id="tunelp">
694 <term><command>tunelp</command></term>
695 <listitem>
696 <para>Tunes the parameters of the line printer</para>
697 <indexterm zone="ch-system-util-linux tunelp">
698 <primary sortas="b-tunelp">tunelp</primary>
699 </indexterm>
700 </listitem>
701 </varlistentry>
702
703 <varlistentry id="ul">
704 <term><command>ul</command></term>
705 <listitem>
706 <para>A filter for translating underscores into escape sequences
707 indicating underlining for the terminal in use</para>
708 <indexterm zone="ch-system-util-linux ul">
709 <primary sortas="b-ul">ul</primary>
710 </indexterm>
711 </listitem>
712 </varlistentry>
713
714 <varlistentry id="umount">
715 <term><command>umount</command></term>
716 <listitem>
717 <para>Disconnects a file system from the system's file tree</para>
718 <indexterm zone="ch-system-util-linux umount">
719 <primary sortas="b-umount">umount</primary>
720 </indexterm>
721 </listitem>
722 </varlistentry>
723
724 <varlistentry id="vidmode">
725 <term><command>vidmode</command></term>
726 <listitem>
727 <para>Sets the video mode in a bootable image</para>
728 <indexterm zone="ch-system-util-linux vidmode">
729 <primary sortas="b-vidmode">vidmode</primary>
730 </indexterm>
731 </listitem>
732 </varlistentry>
733
734 <varlistentry id="whereis">
735 <term><command>whereis</command></term>
736 <listitem>
737 <para>Reports the location of the binary, source, and man page
738 for the given command</para>
739 <indexterm zone="ch-system-util-linux whereis">
740 <primary sortas="b-whereis">whereis</primary>
741 </indexterm>
742 </listitem>
743 </varlistentry>
744
745 <varlistentry id="write">
746 <term><command>write</command></term>
747 <listitem>
748 <para>Sends a message to the given user <emphasis>if</emphasis> that
749 user has not disabled receipt of such messages</para>
750 <indexterm zone="ch-system-util-linux write">
751 <primary sortas="b-write">write</primary>
752 </indexterm>
753 </listitem>
754 </varlistentry>
755
756 </variablelist>
757
758 </sect2>
759
760</sect1>
Note: See TracBrowser for help on using the repository browser.