source: chapter08/util-linux.xml@ 5a0eccd

multilib
Last change on this file since 5a0eccd was 1c0bd90, checked in by Thomas Trepl <thomas@…>, 15 months ago

Automatic merge of trunk into multilib

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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" role="wrap">
9 <?dbhtml filename="util-linux.html"?>
10
11 <sect1info condition="script">
12 <productname>util-linux</productname>
13 <productnumber>&util-linux-version;</productnumber>
14 <address>&util-linux-url;</address>
15 </sect1info>
16
17 <title>Util-linux-&util-linux-version;</title>
18
19 <indexterm zone="ch-system-util-linux">
20 <primary sortas="a-Util-linux">Util-linux</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Util-linux 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-fin-sbu;</seg>
36 <seg>&util-linux-fin-du;</seg>
37 </seglistitem>
38 </segmentedlist>
39
40 </sect2>
41
42 <sect2 role="installation">
43 <title>Installation of Util-linux</title>
44
45 <para>Prepare Util-linux for compilation:</para>
46
47<screen revision="sysv"><userinput remap="configure">./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
48 --bindir=/usr/bin \
49 --libdir=/usr/lib \
50 --sbindir=/usr/sbin \
51 --disable-chfn-chsh \
52 --disable-login \
53 --disable-nologin \
54 --disable-su \
55 --disable-setpriv \
56 --disable-runuser \
57 --disable-pylibmount \
58 --disable-static \
59 --without-python \
60 --without-systemd \
61 --without-systemdsystemunitdir \
62 --docdir=/usr/share/doc/util-linux-&util-linux-version;</userinput></screen>
63
64<screen revision="systemd"><userinput remap="configure">./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
65 --bindir=/usr/bin \
66 --libdir=/usr/lib \
67 --sbindir=/usr/sbin \
68 --disable-chfn-chsh \
69 --disable-login \
70 --disable-nologin \
71 --disable-su \
72 --disable-setpriv \
73 --disable-runuser \
74 --disable-pylibmount \
75 --disable-static \
76 --without-python \
77 --docdir=/usr/share/doc/util-linux-&util-linux-version;</userinput></screen>
78
79 <para>The --disable and --without options prevent warnings about
80 building components that either require packages not in LFS, or are
81 inconsistent with programs installed by other packages.</para>
82
83 <para>Compile the package:</para>
84
85<screen><userinput remap="make">make</userinput></screen>
86
87 <para>If desired, run the test suite as a non-&root; user:</para>
88
89 <warning><para>Running the test suite as the
90 <systemitem class="username">root</systemitem> user can be harmful to
91 your system. To run it, the CONFIG_SCSI_DEBUG option for the kernel must
92 be available in the currently running system and must be built as a
93 module. Building it into the kernel will prevent booting. For complete
94 coverage, other BLFS packages must be installed. If desired, this test can
95 be run by booting into the completed LFS system and running:</para>
96
97<screen role="nodump"><userinput>bash tests/run.sh --srcdir=$PWD --builddir=$PWD</userinput></screen>
98 </warning>
99
100<screen><userinput remap="test">chown -Rv tester .
101su tester -c "make -k check"</userinput></screen>
102
103 <para>The <emphasis>hardlink</emphasis> tests will fail if the host's kernel
104 does not have the option CONFIG_CRYPTO_USER_API_HASH set. In addition,
105 two sub-tests from misc: mbsencode and one sub-test from script: replay are
106 known to fail.</para>
107
108 <para>Install the package:</para>
109
110<screen><userinput remap="install">make install</userinput></screen>
111<!--
112 <para>Finally, install the man pages:</para>
113
114<screen><userinput remap="install">tar -xf ../util-linux-man-pages-&util-linux-version;.tar.xz - -directory /usr/share/man - -strip-components=1</userinput></screen>
115-->
116 </sect2>
117
118 <!-- - - - - - - - - - -->
119 <!-- Multilib - 32bit -->
120 <!-- - - - - - - - - - -->
121
122 <sect2 arch="ml_32,ml_all" role="installation">
123 <title>Installation of Util-linux - 32-bit</title>
124
125 <para>Clean previous build:</para>
126
127<screen><userinput remap="pre">make distclean</userinput></screen>
128
129 <para>Move a tool out of the way which is optionally used by
130 configure but will report invalid pathes for multilib builds.</para>
131
132<screen><userinput remap="configure">mv /usr/bin/ncursesw6-config{,.tmp}</userinput></screen>
133
134 <para>Prepare Util-linux for compilation:</para>
135
136<screen revision="sysv"><userinput remap="configure">CC="gcc -m32" \
137./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
138 --host=i686-pc-linux-gnu \
139 --libdir=/usr/lib32 \
140 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
141 --disable-chfn-chsh \
142 --disable-login \
143 --disable-nologin \
144 --disable-su \
145 --disable-setpriv \
146 --disable-runuser \
147 --disable-pylibmount \
148 --disable-static \
149 --without-python \
150 --without-systemd \
151 --without-systemdsystemunitdir</userinput></screen>
152
153<screen revision="systemd"><userinput remap="configure">CC="gcc -m32" \
154./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
155 --host=i686-pc-linux-gnu \
156 --libdir=/usr/lib32 \
157 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
158 --disable-chfn-chsh \
159 --disable-login \
160 --disable-nologin \
161 --disable-su \
162 --disable-setpriv \
163 --disable-runuser \
164 --disable-pylibmount \
165 --disable-static \
166 --without-python</userinput></screen>
167
168 <para>Restore the tool previously moved away:</para>
169
170<screen><userinput remap="configure">mv /usr/bin/ncursesw6-config{.tmp,}</userinput></screen>
171
172 <para>Compile the package:</para>
173
174<screen><userinput remap="make">make</userinput></screen>
175
176 <para>Install the package:</para>
177
178<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
179cp -Rv DESTDIR/usr/lib32/* /usr/lib32
180rm -rf DESTDIR</userinput></screen>
181
182 </sect2><!-- m32 -->
183
184 <!-- - - - - - - - - - -->
185 <!-- Multilib - x32bit -->
186 <!-- - - - - - - - - - -->
187
188 <sect2 arch="ml_x32,ml_all" role="installation">
189 <title>Installation of Util-linux - x32-bit</title>
190
191 <para>Clean previous build:</para>
192
193<screen><userinput remap="pre">make distclean</userinput></screen>
194
195 <para>Move a tool out of the way which is optionally used by
196 configure but will report invalid pathes for multilib builds.</para>
197
198<screen><userinput remap="configure">mv /usr/bin/ncursesw6-config{,.tmp}</userinput></screen>
199
200 <para>Prepare Util-linux for compilation:</para>
201
202<screen revision="sysv"><userinput remap="configure">CC="gcc -mx32" \
203./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
204 --host=x86_64-pc-linux-gnux32 \
205 --libdir=/usr/libx32 \
206 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
207 --disable-chfn-chsh \
208 --disable-login \
209 --disable-nologin \
210 --disable-su \
211 --disable-setpriv \
212 --disable-runuser \
213 --disable-pylibmount \
214 --disable-static \
215 --without-python \
216 --without-systemd \
217 --without-systemdsystemunitdir</userinput></screen>
218
219<screen revision="systemd"><userinput remap="configure">CC="gcc -mx32" \
220./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
221 --host=x86_64-pc-linux-gnux32 \
222 --libdir=/usr/libx32 \
223 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
224 --disable-chfn-chsh \
225 --disable-login \
226 --disable-nologin \
227 --disable-su \
228 --disable-setpriv \
229 --disable-runuser \
230 --disable-pylibmount \
231 --disable-static \
232 --without-python</userinput></screen>
233
234 <para>Restore the tool previously moved away:</para>
235
236<screen><userinput remap="configure">mv /usr/bin/ncursesw6-config{.tmp,}</userinput></screen>
237
238 <para>Compile the package:</para>
239
240<screen><userinput remap="make">make</userinput></screen>
241
242 <para>Install the package:</para>
243
244<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
245cp -Rv DESTDIR/usr/libx32/* /usr/libx32
246rm -rf DESTDIR</userinput></screen>
247
248 </sect2><!-- mx32 -->
249
250 <sect2 id="contents-utillinux" role="content">
251 <title>Contents of Util-linux</title>
252
253 <segmentedlist>
254 <segtitle>Installed programs</segtitle>
255 <segtitle>Installed libraries</segtitle>
256 <segtitle>Installed directories</segtitle>
257
258 <seglistitem>
259 <seg>addpart, agetty, blkdiscard, blkid, blkzone, blockdev, cal, cfdisk, chcpu,
260 chmem, choom, chrt, col, colcrt, colrm, column, ctrlaltdel, delpart, dmesg,
261 eject, fallocate, fdisk, fincore, findfs, findmnt, flock, fsck,
262 fsck.cramfs, fsck.minix, fsfreeze, fstrim, getopt, hardlink, hexdump, hwclock,
263 i386 (link to setarch), ionice, ipcmk, ipcrm, ipcs, irqtop, isosize, kill, last,
264 lastb (link to last), ldattach, linux32 (link to setarch), linux64 (link to setarch),
265 logger, look, losetup, lsblk, lscpu, lsipc, lsirq, lsfd, lslocks, lslogins,
266 lsmem, lsns, mcookie, mesg, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap,
267 more, mount, mountpoint, namei, nsenter, partx, pivot_root, prlimit,
268 readprofile, rename, renice, resizepart, rev, rfkill, rtcwake, script,
269 scriptlive, scriptreplay, setarch, setsid, setterm, sfdisk, sulogin, swaplabel,
270 swapoff, swapon, switch_root, taskset, uclampset, ul,
271 umount, uname26 (link to setarch), unshare, utmpdump, uuidd, uuidgen, uuidparse,
272 wall, wdctl, whereis, wipefs, x86_64 (link to setarch), and zramctl</seg>
273 <seg>libblkid.so, libfdisk.so, libmount.so,
274 libsmartcols.so, and libuuid.so</seg>
275 <seg>/usr/include/blkid,
276 /usr/include/libfdisk,
277 /usr/include/libmount,
278 /usr/include/libsmartcols,
279 /usr/include/uuid,
280 /usr/share/doc/util-linux-&util-linux-version;,
281 and /var/lib/hwclock</seg>
282 </seglistitem>
283 </segmentedlist>
284
285 <variablelist>
286 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
287 <?dbfo list-presentation="list"?>
288 <?dbhtml list-presentation="table"?>
289
290 <varlistentry id="addpart">
291 <term><command>addpart</command></term>
292 <listitem>
293 <para>Informs the Linux kernel of new partitions</para>
294 <indexterm zone="ch-system-util-linux addpart">
295 <primary sortas="b-addpart">addpart</primary>
296 </indexterm>
297 </listitem>
298 </varlistentry>
299
300 <varlistentry id="agetty">
301 <term><command>agetty</command></term>
302 <listitem>
303 <para>Opens a tty port, prompts for a login name,
304 and then invokes the <command>login</command> program</para>
305 <indexterm zone="ch-system-util-linux agetty">
306 <primary sortas="b-agetty">agetty</primary>
307 </indexterm>
308 </listitem>
309 </varlistentry>
310
311 <varlistentry id="blkdiscard">
312 <term><command>blkdiscard</command></term>
313 <listitem>
314 <para>Discards sectors on a device</para>
315 <indexterm zone="ch-system-util-linux blkdiscard">
316 <primary sortas="b-blkdiscard">blkdiscard</primary>
317 </indexterm>
318 </listitem>
319 </varlistentry>
320
321 <varlistentry id="blkid">
322 <term><command>blkid</command></term>
323 <listitem>
324 <para>A command line utility to locate and print block device
325 attributes</para>
326 <indexterm zone="ch-system-util-linux blkid">
327 <primary sortas="b-blkid">blkid</primary>
328 </indexterm>
329 </listitem>
330 </varlistentry>
331
332 <varlistentry id="blkzone">
333 <term><command>blkzone</command></term>
334 <listitem>
335 <para>Is used to manage zoned storage block devices</para>
336 <indexterm zone="ch-system-util-linux blkzone">
337 <primary sortas="b-blkzone">blkzone</primary>
338 </indexterm>
339 </listitem>
340 </varlistentry>
341
342 <varlistentry id="blockdev">
343 <term><command>blockdev</command></term>
344 <listitem>
345 <para>Allows users to call block device ioctls from the command
346 line</para>
347 <indexterm zone="ch-system-util-linux blockdev">
348 <primary sortas="b-blockdev">blockdev</primary>
349 </indexterm>
350 </listitem>
351 </varlistentry>
352
353 <varlistentry id="cal">
354 <term><command>cal</command></term>
355 <listitem>
356 <para>Displays a simple calendar</para>
357 <indexterm zone="ch-system-util-linux cal">
358 <primary sortas="b-cal">cal</primary>
359 </indexterm>
360 </listitem>
361 </varlistentry>
362
363 <varlistentry id="cfdisk">
364 <term><command>cfdisk</command></term>
365 <listitem>
366 <para>Manipulates the partition table of the given device</para>
367 <indexterm zone="ch-system-util-linux cfdisk">
368 <primary sortas="b-cfdisk">cfdisk</primary>
369 </indexterm>
370 </listitem>
371 </varlistentry>
372
373 <varlistentry id="chcpu">
374 <term><command>chcpu</command></term>
375 <listitem>
376 <para>Modifies the state of CPUs</para>
377 <indexterm zone="ch-system-util-linux chcpu">
378 <primary sortas="b-chcpu">chcpu</primary>
379 </indexterm>
380 </listitem>
381 </varlistentry>
382
383 <varlistentry id="chmem">
384 <term><command>chmem</command></term>
385 <listitem>
386 <para>Configures memory</para>
387 <indexterm zone="ch-system-util-linux chmem">
388 <primary sortas="b-chmem">chmem</primary>
389 </indexterm>
390 </listitem>
391 </varlistentry>
392
393 <varlistentry id="choom">
394 <term><command>choom</command></term>
395 <listitem>
396 <para>Displays and adjusts OOM-killer scores, used to determine
397 which process to kill first when Linux is Out Of Memory</para>
398 <indexterm zone="ch-system-util-linux choom">
399 <primary sortas="b-choom">choom</primary>
400 </indexterm>
401 </listitem>
402 </varlistentry>
403
404 <varlistentry id="chrt">
405 <term><command>chrt</command></term>
406 <listitem>
407 <para>Manipulates real-time attributes of a process</para>
408 <indexterm zone="ch-system-util-linux chrt">
409 <primary sortas="b-chrt">chrt</primary>
410 </indexterm>
411 </listitem>
412 </varlistentry>
413
414 <varlistentry id="col">
415 <term><command>col</command></term>
416 <listitem>
417 <para>Filters out reverse line feeds</para>
418 <indexterm zone="ch-system-util-linux col">
419 <primary sortas="b-col">col</primary>
420 </indexterm>
421 </listitem>
422 </varlistentry>
423
424 <varlistentry id="colcrt">
425 <term><command>colcrt</command></term>
426 <listitem>
427 <para>Filters <command>nroff</command> output for terminals
428 that lack some capabilities, such as overstriking and half-lines</para>
429 <indexterm zone="ch-system-util-linux colcrt">
430 <primary sortas="b-colcrt">colcrt</primary>
431 </indexterm>
432 </listitem>
433 </varlistentry>
434
435 <varlistentry id="colrm">
436 <term><command>colrm</command></term>
437 <listitem>
438 <para>Filters out the given columns</para>
439 <indexterm zone="ch-system-util-linux colrm">
440 <primary sortas="b-colrm">colrm</primary>
441 </indexterm>
442 </listitem>
443 </varlistentry>
444
445 <varlistentry id="column">
446 <term><command>column</command></term>
447 <listitem>
448 <para>Formats a given file into multiple columns</para>
449 <indexterm zone="ch-system-util-linux column">
450 <primary sortas="b-column">column</primary>
451 </indexterm>
452 </listitem>
453 </varlistentry>
454
455 <varlistentry id="ctrlaltdel">
456 <term><command>ctrlaltdel</command></term>
457 <listitem>
458 <para>Sets the function of the Ctrl+Alt+Del key combination to a
459 hard or a soft reset</para>
460 <indexterm zone="ch-system-util-linux ctrlaltdel">
461 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
462 </indexterm>
463 </listitem>
464 </varlistentry>
465
466 <varlistentry id="delpart">
467 <term><command>delpart</command></term>
468 <listitem>
469 <para>Asks the Linux kernel to remove a partition</para>
470 <indexterm zone="ch-system-util-linux delpart">
471 <primary sortas="b-delpart">delpart</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="dmesg">
477 <term><command>dmesg</command></term>
478 <listitem>
479 <para>Dumps the kernel boot messages</para>
480 <indexterm zone="ch-system-util-linux dmesg">
481 <primary sortas="b-dmesg">dmesg</primary>
482 </indexterm>
483 </listitem>
484 </varlistentry>
485
486 <varlistentry id="eject">
487 <term><command>eject</command></term>
488 <listitem>
489 <para>Ejects removable media</para>
490 <indexterm zone="ch-system-util-linux eject">
491 <primary sortas="b-eject">eject</primary>
492 </indexterm>
493 </listitem>
494 </varlistentry>
495
496 <varlistentry id="fallocate">
497 <term><command>fallocate</command></term>
498 <listitem>
499 <para>Preallocates space to a file</para>
500 <indexterm zone="ch-system-util-linux fallocate">
501 <primary sortas="b-fallocate">fallocate</primary>
502 </indexterm>
503 </listitem>
504 </varlistentry>
505
506 <varlistentry id="fdisk">
507 <term><command>fdisk</command></term>
508 <listitem>
509 <para>Manipulates the partition table of the given device</para>
510 <indexterm zone="ch-system-util-linux fdisk">
511 <primary sortas="b-fdisk">fdisk</primary>
512 </indexterm>
513 </listitem>
514 </varlistentry>
515
516 <varlistentry id="fincore">
517 <term><command>fincore</command></term>
518 <listitem>
519 <para>Counts pages of file contents in core</para>
520 <indexterm zone="ch-system-util-linux fincore">
521 <primary sortas="b-fincore">fincore</primary>
522 </indexterm>
523 </listitem>
524 </varlistentry>
525
526 <varlistentry id="findfs">
527 <term><command>findfs</command></term>
528 <listitem>
529 <para>Finds a file system, either by label or Universally Unique Identifier
530 (UUID)</para>
531 <indexterm zone="ch-system-util-linux findfs">
532 <primary sortas="b-findfs">findfs</primary>
533 </indexterm>
534 </listitem>
535 </varlistentry>
536
537 <varlistentry id="findmnt">
538 <term><command>findmnt</command></term>
539 <listitem>
540 <para>Is a command line interface to the libmount library
541 for working with mountinfo, fstab and mtab files</para>
542 <indexterm zone="ch-system-util-linux findmnt">
543 <primary sortas="b-findmnt">findmnt</primary>
544 </indexterm>
545 </listitem>
546 </varlistentry>
547
548 <varlistentry id="flock">
549 <term><command>flock</command></term>
550 <listitem>
551 <para>Acquires a file lock and then executes a command with the lock
552 held</para>
553 <indexterm zone="ch-system-util-linux flock">
554 <primary sortas="b-flock">flock</primary>
555 </indexterm>
556 </listitem>
557 </varlistentry>
558
559 <varlistentry id="fsck">
560 <term><command>fsck</command></term>
561 <listitem>
562 <para>Is used to check, and optionally repair, file systems</para>
563 <indexterm zone="ch-system-util-linux fsck">
564 <primary sortas="b-fsck">fsck</primary>
565 </indexterm>
566 </listitem>
567 </varlistentry>
568
569 <varlistentry id="fsck.cramfs">
570 <term><command>fsck.cramfs</command></term>
571 <listitem>
572 <para>Performs a consistency check on the Cramfs file system on the
573 given device</para>
574 <indexterm zone="ch-system-util-linux fsck.cramfs">
575 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
576 </indexterm>
577 </listitem>
578 </varlistentry>
579
580 <varlistentry id="fsck.minix">
581 <term><command>fsck.minix</command></term>
582 <listitem>
583 <para>Performs a consistency check on the Minix file system on the
584 given device</para>
585 <indexterm zone="ch-system-util-linux fsck.minix">
586 <primary sortas="b-fsck.minix">fsck.minix</primary>
587 </indexterm>
588 </listitem>
589 </varlistentry>
590
591 <varlistentry id="fsfreeze">
592 <term><command>fsfreeze</command></term>
593 <listitem>
594 <para>Is a very simple wrapper around FIFREEZE/FITHAW ioctl
595 kernel driver operations</para>
596 <indexterm zone="ch-system-util-linux fsfreeze">
597 <primary sortas="b-fsfreeze">fsfreeze</primary>
598 </indexterm>
599 </listitem>
600 </varlistentry>
601
602 <varlistentry id="fstrim">
603 <term><command>fstrim</command></term>
604 <listitem>
605 <para>Discards unused blocks on a mounted filesystem</para>
606 <indexterm zone="ch-system-util-linux fstrim">
607 <primary sortas="b-fstrim">fstrim</primary>
608 </indexterm>
609 </listitem>
610 </varlistentry>
611
612 <varlistentry id="getopt">
613 <term><command>getopt</command></term>
614 <listitem>
615 <para>Parses options in the given command line</para>
616 <indexterm zone="ch-system-util-linux getopt">
617 <primary sortas="b-getopt">getopt</primary>
618 </indexterm>
619 </listitem>
620 </varlistentry>
621
622 <varlistentry id="hardlink">
623 <term><command>hardlink</command></term>
624 <listitem>
625 <para>Consolidates duplicate files by creating hard links</para>
626 <indexterm zone="ch-system-util-linux hardlink">
627 <primary sortas="b-hardlink">hardlink</primary>
628 </indexterm>
629 </listitem>
630 </varlistentry>
631
632 <varlistentry id="hexdump">
633 <term><command>hexdump</command></term>
634 <listitem>
635 <para>Dumps the given file in hexadecimal, decimal, octal,
636 or ascii</para>
637 <indexterm zone="ch-system-util-linux hexdump">
638 <primary sortas="b-hexdump">hexdump</primary>
639 </indexterm>
640 </listitem>
641 </varlistentry>
642
643 <varlistentry id="hwclock">
644 <term><command>hwclock</command></term>
645 <listitem>
646 <para>Reads or sets the system's hardware clock, also called
647 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
648 clock</para>
649 <indexterm zone="ch-system-util-linux hwclock">
650 <primary sortas="b-hwclock">hwclock</primary>
651 </indexterm>
652 </listitem>
653 </varlistentry>
654
655 <varlistentry id="i386">
656 <term><command>i386</command></term>
657 <listitem>
658 <para>A symbolic link to setarch</para>
659 <indexterm zone="ch-system-util-linux i386">
660 <primary sortas="b-i386">i386</primary>
661 </indexterm>
662 </listitem>
663 </varlistentry>
664
665 <varlistentry id="ionice">
666 <term><command>ionice</command></term>
667 <listitem>
668 <para>Gets or sets the io scheduling class and priority for a program</para>
669 <indexterm zone="ch-system-util-linux ionice">
670 <primary sortas="b-ionice">ionice</primary>
671 </indexterm>
672 </listitem>
673 </varlistentry>
674
675 <varlistentry id="ipcmk">
676 <term><command>ipcmk</command></term>
677 <listitem>
678 <para>Creates various IPC resources</para>
679 <indexterm zone="ch-system-util-linux ipcmk">
680 <primary sortas="b-ipcmk">ipcmk</primary>
681 </indexterm>
682 </listitem>
683 </varlistentry>
684
685 <varlistentry id="ipcrm">
686 <term><command>ipcrm</command></term>
687 <listitem>
688 <para>Removes the given Inter-Process Communication (IPC) resource</para>
689 <indexterm zone="ch-system-util-linux ipcrm">
690 <primary sortas="b-ipcrm">ipcrm</primary>
691 </indexterm>
692 </listitem>
693 </varlistentry>
694
695 <varlistentry id="ipcs">
696 <term><command>ipcs</command></term>
697 <listitem>
698 <para>Provides IPC status information</para>
699 <indexterm zone="ch-system-util-linux ipcs">
700 <primary sortas="b-ipcs">ipcs</primary>
701 </indexterm>
702 </listitem>
703 </varlistentry>
704
705 <varlistentry id="irqtop">
706 <term><command>irqtop</command></term>
707 <listitem>
708 <para>Displays kernel interrupt counter information in
709 <filename>top(1)</filename> style view</para>
710 <indexterm zone="ch-system-util-linux irqtop">
711 <primary sortas="b-irqtop">irqtop</primary>
712 </indexterm>
713 </listitem>
714 </varlistentry>
715
716 <varlistentry id="isosize">
717 <term><command>isosize</command></term>
718 <listitem>
719 <para>Reports the size of an iso9660 file system</para>
720 <indexterm zone="ch-system-util-linux isosize">
721 <primary sortas="b-isosize">isosize</primary>
722 </indexterm>
723 </listitem>
724 </varlistentry>
725
726 <varlistentry id="kill">
727 <term><command>kill</command></term>
728 <listitem>
729 <para>Sends signals to processes</para>
730 <indexterm zone="ch-system-util-linux kill">
731 <primary sortas="b-kill">kill</primary>
732 </indexterm>
733 </listitem>
734 </varlistentry>
735
736 <varlistentry id="last">
737 <term><command>last</command></term>
738 <listitem>
739 <para>Shows which users last logged in (and out), searching back
740 through the <filename>/var/log/wtmp</filename> file; it also shows
741 system boots, shutdowns, and run-level changes</para>
742 <indexterm zone="ch-system-util-linux last">
743 <primary sortas="b-last">last</primary>
744 </indexterm>
745 </listitem>
746 </varlistentry>
747
748 <varlistentry id="lastb">
749 <term><command>lastb</command></term>
750 <listitem>
751 <para>Shows the failed login attempts, as logged in
752 <filename>/var/log/btmp</filename></para>
753 <indexterm zone="ch-system-util-linux lastb">
754 <primary sortas="b-lastb">lastb</primary>
755 </indexterm>
756 </listitem>
757 </varlistentry>
758
759 <varlistentry id="ldattach">
760 <term><command>ldattach</command></term>
761 <listitem>
762 <para>Attaches a line discipline to a serial line</para>
763 <indexterm zone="ch-system-util-linux ldattach">
764 <primary sortas="b-ldattach">ldattach</primary>
765 </indexterm>
766 </listitem>
767 </varlistentry>
768
769 <varlistentry id="linux32">
770 <term><command>linux32</command></term>
771 <listitem>
772 <para>A symbolic link to setarch</para>
773 <indexterm zone="ch-system-util-linux linux32">
774 <primary sortas="b-linux32">linux32</primary>
775 </indexterm>
776 </listitem>
777 </varlistentry>
778
779 <varlistentry id="linux64">
780 <term><command>linux64</command></term>
781 <listitem>
782 <para>A symbolic link to setarch</para>
783 <indexterm zone="ch-system-util-linux linux64">
784 <primary sortas="b-linux64">linux64</primary>
785 </indexterm>
786 </listitem>
787 </varlistentry>
788
789 <varlistentry id="logger">
790 <term><command>logger</command></term>
791 <listitem>
792 <para>Enters the given message into the system log</para>
793 <indexterm zone="ch-system-util-linux logger">
794 <primary sortas="b-logger">logger</primary>
795 </indexterm>
796 </listitem>
797 </varlistentry>
798
799 <varlistentry id="look">
800 <term><command>look</command></term>
801 <listitem>
802 <para>Displays lines that begin with the given string</para>
803 <indexterm zone="ch-system-util-linux look">
804 <primary sortas="b-look">look</primary>
805 </indexterm>
806 </listitem>
807 </varlistentry>
808
809 <varlistentry id="losetup">
810 <term><command>losetup</command></term>
811 <listitem>
812 <para>Sets up and controls loop devices</para>
813 <indexterm zone="ch-system-util-linux losetup">
814 <primary sortas="b-losetup">losetup</primary>
815 </indexterm>
816 </listitem>
817 </varlistentry>
818
819 <varlistentry id="lsblk">
820 <term><command>lsblk</command></term>
821 <listitem>
822 <para>Lists information about all or selected block devices in
823 a tree-like format</para>
824 <indexterm zone="ch-system-util-linux lsblk">
825 <primary sortas="b-lsblk">lsblk</primary>
826 </indexterm>
827 </listitem>
828 </varlistentry>
829
830 <varlistentry id="lscpu">
831 <term><command>lscpu</command></term>
832 <listitem>
833 <para>Prints CPU architecture information</para>
834 <indexterm zone="ch-system-util-linux lscpu">
835 <primary sortas="b-lscpu">lscpu</primary>
836 </indexterm>
837 </listitem>
838 </varlistentry>
839
840 <varlistentry id="lsfd">
841 <term><command>lsfd</command></term>
842 <listitem>
843 <para>Displays information about open files; replaces <command>lsof</command></para>
844 <indexterm zone="ch-system-util-linux lsfd">
845 <primary sortas="b-lsfd">lsfd</primary>
846 </indexterm>
847 </listitem>
848 </varlistentry>
849
850 <varlistentry id="lsipc">
851 <term><command>lsipc</command></term>
852 <listitem>
853 <para>Prints information on IPC facilities currently employed
854 in the system</para>
855 <indexterm zone="ch-system-util-linux lsipc">
856 <primary sortas="b-lsipc">lsipc</primary>
857 </indexterm>
858 </listitem>
859 </varlistentry>
860
861 <varlistentry id="lsirq">
862 <term><command>lsirq</command></term>
863 <listitem>
864 <para>Displays kernel interrupt counter information</para>
865 <indexterm zone="ch-system-util-linux lsirq">
866 <primary sortas="b-lsirq">lsirq</primary>
867 </indexterm>
868 </listitem>
869 </varlistentry>
870
871 <varlistentry id="lslocks">
872 <term><command>lslocks</command></term>
873 <listitem>
874 <para>Lists local system locks</para>
875 <indexterm zone="ch-system-util-linux lslocks">
876 <primary sortas="b-lslocks">lslocks</primary>
877 </indexterm>
878 </listitem>
879 </varlistentry>
880
881 <varlistentry id="lslogins">
882 <term><command>lslogins</command></term>
883 <listitem>
884 <para>Lists information about users, groups and system accounts</para>
885 <indexterm zone="ch-system-util-linux lslogins">
886 <primary sortas="b-lslogins">lslogins</primary>
887 </indexterm>
888 </listitem>
889 </varlistentry>
890
891 <varlistentry id="lsmem">
892 <term><command>lsmem</command></term>
893 <listitem>
894 <para>Lists the ranges of available memory with their online
895 status</para>
896 <indexterm zone="ch-system-util-linux lsmem">
897 <primary sortas="b-lsmem">lsmem</primary>
898 </indexterm>
899 </listitem>
900 </varlistentry>
901
902 <varlistentry id="lsns">
903 <term><command>lsns</command></term>
904 <listitem>
905 <para>Lists namespaces</para>
906 <indexterm zone="ch-system-util-linux lsns">
907 <primary sortas="b-lsns">lsns</primary>
908 </indexterm>
909 </listitem>
910 </varlistentry>
911
912 <varlistentry id="mcookie">
913 <term><command>mcookie</command></term>
914 <listitem>
915 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
916 <command>xauth</command></para>
917 <indexterm zone="ch-system-util-linux mcookie">
918 <primary sortas="b-mcookie">mcookie</primary>
919 </indexterm>
920 </listitem>
921 </varlistentry>
922
923 <varlistentry id="mesg">
924 <term><command>mesg</command></term>
925 <listitem>
926 <para>Controls whether other users can send messages to the current
927 user's terminal</para>
928 <indexterm zone="ch-system-util-linux mesg">
929 <primary sortas="b-mesg">mesg</primary>
930 </indexterm>
931 </listitem>
932 </varlistentry>
933
934 <varlistentry id="mkfs">
935 <term><command>mkfs</command></term>
936 <listitem>
937 <para>Builds a file system on a device (usually a hard disk
938 partition)</para>
939 <indexterm zone="ch-system-util-linux mkfs">
940 <primary sortas="b-mkfs">mkfs</primary>
941 </indexterm>
942 </listitem>
943 </varlistentry>
944
945 <varlistentry id="mkfs.bfs">
946 <term><command>mkfs.bfs</command></term>
947 <listitem>
948 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
949 <indexterm zone="ch-system-util-linux mkfs.bfs">
950 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
951 </indexterm>
952 </listitem>
953 </varlistentry>
954
955 <varlistentry id="mkfs.cramfs">
956 <term><command>mkfs.cramfs</command></term>
957 <listitem>
958 <para>Creates a cramfs file system</para>
959 <indexterm zone="ch-system-util-linux mkfs.cramfs">
960 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
961 </indexterm>
962 </listitem>
963 </varlistentry>
964
965 <varlistentry id="mkfs.minix">
966 <term><command>mkfs.minix</command></term>
967 <listitem>
968 <para>Creates a Minix file system</para>
969 <indexterm zone="ch-system-util-linux mkfs.minix">
970 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
971 </indexterm>
972 </listitem>
973 </varlistentry>
974
975 <varlistentry id="mkswap">
976 <term><command>mkswap</command></term>
977 <listitem>
978 <para>Initializes the given device or file to be used as a swap
979 area</para>
980 <indexterm zone="ch-system-util-linux mkswap">
981 <primary sortas="b-mkswap">mkswap</primary>
982 </indexterm>
983 </listitem>
984 </varlistentry>
985
986 <varlistentry id="more">
987 <term><command>more</command></term>
988 <listitem>
989 <para>A filter for paging through text one screen at a time</para>
990 <indexterm zone="ch-system-util-linux more">
991 <primary sortas="b-more">more</primary>
992 </indexterm>
993 </listitem>
994 </varlistentry>
995
996 <varlistentry id="mount">
997 <term><command>mount</command></term>
998 <listitem>
999 <para>Attaches the file system on the given device to a specified
1000 directory in the file-system tree</para>
1001 <indexterm zone="ch-system-util-linux mount">
1002 <primary sortas="b-mount">mount</primary>
1003 </indexterm>
1004 </listitem>
1005 </varlistentry>
1006
1007 <varlistentry id="mountpoint">
1008 <term><command>mountpoint</command></term>
1009 <listitem>
1010 <para>Checks if the directory is a mountpoint</para>
1011 <indexterm zone="ch-system-util-linux mountpoint">
1012 <primary sortas="b-mountpoint">mountpoint</primary>
1013 </indexterm>
1014 </listitem>
1015 </varlistentry>
1016
1017 <varlistentry id="namei">
1018 <term><command>namei</command></term>
1019 <listitem>
1020 <para>Shows the symbolic links in the given paths</para>
1021 <indexterm zone="ch-system-util-linux namei">
1022 <primary sortas="b-namei">namei</primary>
1023 </indexterm>
1024 </listitem>
1025 </varlistentry>
1026
1027 <varlistentry id="nsenter">
1028 <term><command>nsenter</command></term>
1029 <listitem>
1030 <para>Runs a program with namespaces of other processes</para>
1031 <indexterm zone="ch-system-util-linux nsenter">
1032 <primary sortas="b-nsenter">nsenter</primary>
1033 </indexterm>
1034 </listitem>
1035 </varlistentry>
1036
1037 <varlistentry id="partx">
1038 <term><command>partx</command></term>
1039 <listitem>
1040 <para>Tells the kernel about the presence and numbering of on-disk
1041 partitions</para>
1042 <indexterm zone="ch-system-util-linux partx">
1043 <primary sortas="b-partx">partx</primary>
1044 </indexterm>
1045 </listitem>
1046 </varlistentry>
1047
1048 <varlistentry id="pivot_root">
1049 <term><command>pivot_root</command></term>
1050 <listitem>
1051 <para>Makes the given file system the new root file system of the
1052 current process</para>
1053 <indexterm zone="ch-system-util-linux pivot_root">
1054 <primary sortas="b-pivot_root">pivot_root</primary>
1055 </indexterm>
1056 </listitem>
1057 </varlistentry>
1058
1059 <varlistentry id="prlimit">
1060 <term><command>prlimit</command></term>
1061 <listitem>
1062 <para>Gets and sets a process's resource limits</para>
1063 <indexterm zone="ch-system-util-linux prlimit">
1064 <primary sortas="b-prlimit">prlimit</primary>
1065 </indexterm>
1066 </listitem>
1067 </varlistentry>
1068
1069 <varlistentry id="readprofile">
1070 <term><command>readprofile</command></term>
1071 <listitem>
1072 <para>Reads kernel profiling information</para>
1073 <indexterm zone="ch-system-util-linux readprofile">
1074 <primary sortas="b-readprofile">readprofile</primary>
1075 </indexterm>
1076 </listitem>
1077 </varlistentry>
1078
1079 <varlistentry id="rename">
1080 <term><command>rename</command></term>
1081 <listitem>
1082 <para>Renames the given files, replacing a given string with
1083 another</para>
1084 <indexterm zone="ch-system-util-linux rename">
1085 <primary sortas="b-rename">rename</primary>
1086 </indexterm>
1087 </listitem>
1088 </varlistentry>
1089
1090 <varlistentry id="renice">
1091 <term><command>renice</command></term>
1092 <listitem>
1093 <para>Alters the priority of running processes</para>
1094 <indexterm zone="ch-system-util-linux renice">
1095 <primary sortas="b-renice">renice</primary>
1096 </indexterm>
1097 </listitem>
1098 </varlistentry>
1099
1100 <varlistentry id="resizepart">
1101 <term><command>resizepart</command></term>
1102 <listitem>
1103 <para>Asks the Linux kernel to resize a partition</para>
1104 <indexterm zone="ch-system-util-linux resizepart">
1105 <primary sortas="b-resizepart">resizepart</primary>
1106 </indexterm>
1107 </listitem>
1108 </varlistentry>
1109
1110 <varlistentry id="rev">
1111 <term><command>rev</command></term>
1112 <listitem>
1113 <para>Reverses the lines of a given file</para>
1114 <indexterm zone="ch-system-util-linux rev">
1115 <primary sortas="b-rev">rev</primary>
1116 </indexterm>
1117 </listitem>
1118 </varlistentry>
1119
1120 <varlistentry id="rfkill">
1121 <term><command>rfkill</command></term>
1122 <listitem>
1123 <para>Tool for enabling and disabling wireless devices</para>
1124 <indexterm zone="ch-system-util-linux rfkill">
1125 <primary sortas="b-rfkill">rfkill</primary>
1126 </indexterm>
1127 </listitem>
1128 </varlistentry>
1129
1130 <varlistentry id="rtcwake">
1131 <term><command>rtcwake</command></term>
1132 <listitem>
1133 <para>Used to enter a system sleep state until the specified wakeup
1134 time</para>
1135 <indexterm zone="ch-system-util-linux rtcwake">
1136 <primary sortas="b-rtcwake">rtcwake</primary>
1137 </indexterm>
1138 </listitem>
1139 </varlistentry>
1140
1141 <varlistentry id="script">
1142 <term><command>script</command></term>
1143 <listitem>
1144 <para>Makes a typescript of a terminal session</para>
1145 <indexterm zone="ch-system-util-linux script">
1146 <primary sortas="b-script">script</primary>
1147 </indexterm>
1148 </listitem>
1149 </varlistentry>
1150
1151 <varlistentry id="scriptlive">
1152 <term><command>scriptlive</command></term>
1153 <listitem>
1154 <para>Re-runs session typescripts using timing information</para>
1155 <indexterm zone="ch-system-util-linux scriptlive">
1156 <primary sortas="b-scriptlive">scriptlive</primary>
1157 </indexterm>
1158 </listitem>
1159 </varlistentry>
1160
1161 <varlistentry id="scriptreplay">
1162 <term><command>scriptreplay</command></term>
1163 <listitem>
1164 <para>Plays back typescripts using timing information</para>
1165 <indexterm zone="ch-system-util-linux scriptreplay">
1166 <primary sortas="b-scriptreplay">scriptreplay</primary>
1167 </indexterm>
1168 </listitem>
1169 </varlistentry>
1170
1171 <varlistentry id="setarch">
1172 <term><command>setarch</command></term>
1173 <listitem>
1174 <para>Changes reported architecture in a new program environment, and
1175 sets personality flags</para>
1176 <indexterm zone="ch-system-util-linux setarch">
1177 <primary sortas="b-setarch">setarch</primary>
1178 </indexterm>
1179 </listitem>
1180 </varlistentry>
1181
1182 <varlistentry id="setsid">
1183 <term><command>setsid</command></term>
1184 <listitem>
1185 <para>Runs the given program in a new session</para>
1186 <indexterm zone="ch-system-util-linux setsid">
1187 <primary sortas="b-setsid">setsid</primary>
1188 </indexterm>
1189 </listitem>
1190 </varlistentry>
1191
1192 <varlistentry id="setterm">
1193 <term><command>setterm</command></term>
1194 <listitem>
1195 <para>Sets terminal attributes</para>
1196 <indexterm zone="ch-system-util-linux setterm">
1197 <primary sortas="b-setterm">setterm</primary>
1198 </indexterm>
1199 </listitem>
1200 </varlistentry>
1201
1202 <varlistentry id="sfdisk">
1203 <term><command>sfdisk</command></term>
1204 <listitem>
1205 <para>A disk partition table manipulator</para>
1206 <indexterm zone="ch-system-util-linux sfdisk">
1207 <primary sortas="b-sfdisk">sfdisk</primary>
1208 </indexterm>
1209 </listitem>
1210 </varlistentry>
1211
1212 <varlistentry id="sulogin">
1213 <term><command>sulogin</command></term>
1214 <listitem>
1215 <para>Allows <systemitem class="username">root</systemitem> to log in;
1216 it is normally invoked by <command>init</command> when the system goes
1217 into single user mode</para>
1218 <indexterm zone="ch-system-util-linux sulogin">
1219 <primary sortas="b-sulogin">sulogin</primary>
1220 </indexterm>
1221 </listitem>
1222 </varlistentry>
1223
1224 <varlistentry id="swaplabel">
1225 <term><command>swaplabel</command></term>
1226 <listitem>
1227 <para>Makes changes to the swap area's UUID and label</para>
1228 <indexterm zone="ch-system-util-linux swaplabel">
1229 <primary sortas="b-swaplabel">swaplabel</primary>
1230 </indexterm>
1231 </listitem>
1232 </varlistentry>
1233
1234 <varlistentry id="swapoff">
1235 <term><command>swapoff</command></term>
1236 <listitem>
1237 <para>Disables devices and files for paging and swapping</para>
1238 <indexterm zone="ch-system-util-linux swapoff">
1239 <primary sortas="b-swapoff">swapoff</primary>
1240 </indexterm>
1241 </listitem>
1242 </varlistentry>
1243
1244 <varlistentry id="swapon">
1245 <term><command>swapon</command></term>
1246 <listitem>
1247 <para>Enables devices and files for paging and swapping, and
1248 lists the devices and files currently in use</para>
1249 <indexterm zone="ch-system-util-linux swapon">
1250 <primary sortas="b-swapon">swapon</primary>
1251 </indexterm>
1252 </listitem>
1253 </varlistentry>
1254
1255 <varlistentry id="switch_root">
1256 <term><command>switch_root</command></term>
1257 <listitem>
1258 <para>Switches to another filesystem as the root of the mount tree</para>
1259 <indexterm zone="ch-system-util-linux switch_root">
1260 <primary sortas="b-switch_root">switch_root</primary>
1261 </indexterm>
1262 </listitem>
1263 </varlistentry>
1264
1265 <varlistentry id="taskset">
1266 <term><command>taskset</command></term>
1267 <listitem>
1268 <para>Retrieves or sets a process's CPU affinity</para>
1269 <indexterm zone="ch-system-util-linux taskset">
1270 <primary sortas="b-taskset">taskset</primary>
1271 </indexterm>
1272 </listitem>
1273 </varlistentry>
1274
1275 <varlistentry id="uclampset">
1276 <term><command>uclampset</command></term>
1277 <listitem>
1278 <para>Manipulates the utilization clamping attributes of the
1279 system or a process</para>
1280 <indexterm zone="ch-system-util-linux uclampset">
1281 <primary sortas="b-uclampset">uclampset</primary>
1282 </indexterm>
1283 </listitem>
1284 </varlistentry>
1285
1286 <varlistentry id="ul">
1287 <term><command>ul</command></term>
1288 <listitem>
1289 <para>A filter for translating underscores into escape sequences
1290 indicating underlining for the terminal in use</para>
1291 <indexterm zone="ch-system-util-linux ul">
1292 <primary sortas="b-ul">ul</primary>
1293 </indexterm>
1294 </listitem>
1295 </varlistentry>
1296
1297 <varlistentry id="umount">
1298 <term><command>umount</command></term>
1299 <listitem>
1300 <para>Disconnects a file system from the system's file tree</para>
1301 <indexterm zone="ch-system-util-linux umount">
1302 <primary sortas="b-umount">umount</primary>
1303 </indexterm>
1304 </listitem>
1305 </varlistentry>
1306
1307 <varlistentry id="uname26">
1308 <term><command>uname26</command></term>
1309 <listitem>
1310 <para>A symbolic link to setarch</para>
1311 <indexterm zone="ch-system-util-linux uname26">
1312 <primary sortas="b-uname26">uname26</primary>
1313 </indexterm>
1314 </listitem>
1315 </varlistentry>
1316
1317 <varlistentry id="unshare">
1318 <term><command>unshare</command></term>
1319 <listitem>
1320 <para>Runs a program with some namespaces unshared from parent</para>
1321 <indexterm zone="ch-system-util-linux unshare">
1322 <primary sortas="b-unshare">unshare</primary>
1323 </indexterm>
1324 </listitem>
1325 </varlistentry>
1326
1327 <varlistentry id="utmpdump">
1328 <term><command>utmpdump</command></term>
1329 <listitem>
1330 <para>Displays the content of the given login file in a
1331 user-friendly format</para>
1332 <indexterm zone="ch-system-util-linux utmpdump">
1333 <primary sortas="b-utmpdump">utmpdump</primary>
1334 </indexterm>
1335 </listitem>
1336 </varlistentry>
1337
1338 <varlistentry id="uuidd">
1339 <term><command>uuidd</command></term>
1340 <listitem>
1341 <para>A daemon used by the UUID library to generate time-based
1342 UUIDs in a secure and guaranteed-unique fashion</para>
1343 <indexterm zone="ch-system-util-linux uuidd">
1344 <primary sortas="b-uuidd">uuidd</primary>
1345 </indexterm>
1346 </listitem>
1347 </varlistentry>
1348
1349 <varlistentry id="uuidgen">
1350 <term><command>uuidgen</command></term>
1351 <listitem>
1352 <para>Creates new UUIDs. Each new UUID is a random number likely to be
1353 unique among all UUIDs created, on the local system and on other
1354 systems, in the past and in the future, with extremely high
1355 probability (~340 trillion trillion trillion unique UUIDs are possible)</para>
1356 <indexterm zone="ch-system-util-linux uuidgen">
1357 <primary sortas="b-uuidgen">uuidgen</primary>
1358 </indexterm>
1359 </listitem>
1360 </varlistentry>
1361
1362 <varlistentry id="uuidparse">
1363 <term><command>uuidparse</command></term>
1364 <listitem>
1365 <para>A utility to parse unique identifiers</para>
1366 <indexterm zone="ch-system-util-linux uuidparse">
1367 <primary sortas="b-uuidparse">uuidparse</primary>
1368 </indexterm>
1369 </listitem>
1370 </varlistentry>
1371
1372 <varlistentry id="wall">
1373 <term><command>wall</command></term>
1374 <listitem>
1375 <para>Displays the contents of a file or, by default, its standard
1376 input, on the terminals of all currently logged in users</para>
1377 <indexterm zone="ch-system-util-linux wall">
1378 <primary sortas="b-wall">wall</primary>
1379 </indexterm>
1380 </listitem>
1381 </varlistentry>
1382
1383 <varlistentry id="wdctl">
1384 <term><command>wdctl</command></term>
1385 <listitem>
1386 <para>Shows hardware watchdog status</para>
1387 <indexterm zone="ch-system-util-linux wdctl">
1388 <primary sortas="b-wdctl">wdctl</primary>
1389 </indexterm>
1390 </listitem>
1391 </varlistentry>
1392
1393 <varlistentry id="whereis">
1394 <term><command>whereis</command></term>
1395 <listitem>
1396 <para>Reports the location of the binary, source, and man page
1397 files for the given command</para>
1398 <indexterm zone="ch-system-util-linux whereis">
1399 <primary sortas="b-whereis">whereis</primary>
1400 </indexterm>
1401 </listitem>
1402 </varlistentry>
1403
1404 <varlistentry id="wipefs">
1405 <term><command>wipefs</command></term>
1406 <listitem>
1407 <para>Wipes a filesystem signature from a device</para>
1408 <indexterm zone="ch-system-util-linux wipefs">
1409 <primary sortas="b-wipefs">wipefs</primary>
1410 </indexterm>
1411 </listitem>
1412 </varlistentry>
1413
1414 <varlistentry id="x86_64">
1415 <term><command>x86_64</command></term>
1416 <listitem>
1417 <para>A symbolic link to setarch</para>
1418 <indexterm zone="ch-system-util-linux x86_64">
1419 <primary sortas="b-x86_64">x86_64</primary>
1420 </indexterm>
1421 </listitem>
1422 </varlistentry>
1423
1424 <varlistentry id="zramctl">
1425 <term><command>zramctl</command></term>
1426 <listitem>
1427 <para>A program to set up and control zram (compressed ram disk)
1428 devices</para>
1429 <indexterm zone="ch-system-util-linux zramctl">
1430 <primary sortas="b-zramctl">zramctl</primary>
1431 </indexterm>
1432 </listitem>
1433 </varlistentry>
1434
1435 <varlistentry id="libblkid">
1436 <term><filename class="libraryfile">libblkid</filename></term>
1437 <listitem>
1438 <para>Contains routines for device identification and token
1439 extraction</para>
1440 <indexterm zone="ch-system-util-linux libblkid">
1441 <primary sortas="c-libblkid">libblkid</primary>
1442 </indexterm>
1443 </listitem>
1444 </varlistentry>
1445
1446 <varlistentry id="libfdisk">
1447 <term><filename class="libraryfile">libfdisk</filename></term>
1448 <listitem>
1449 <para>Contains routines for manipulating partition tables</para>
1450 <indexterm zone="ch-system-util-linux libfdisk">
1451 <primary sortas="c-libfdisk">libfdisk</primary>
1452 </indexterm>
1453 </listitem>
1454 </varlistentry>
1455
1456 <varlistentry id="libmount">
1457 <term><filename class="libraryfile">libmount</filename></term>
1458 <listitem>
1459 <para>Contains routines for block device mounting and
1460 unmounting</para>
1461 <indexterm zone="ch-system-util-linux libmount">
1462 <primary sortas="c-libmount">libmount</primary>
1463 </indexterm>
1464 </listitem>
1465 </varlistentry>
1466
1467 <varlistentry id="libsmartcols">
1468 <term><filename class="libraryfile">libsmartcols</filename></term>
1469 <listitem>
1470 <para>Contains routines for aiding screen output in tabular form</para>
1471 <indexterm zone="ch-system-util-linux libsmartcols">
1472 <primary sortas="c-libsmartcols">libsmartcols</primary>
1473 </indexterm>
1474 </listitem>
1475 </varlistentry>
1476
1477 <varlistentry id="libuuid">
1478 <term><filename class="libraryfile">libuuid</filename></term>
1479 <listitem>
1480 <para>Contains routines for generating unique identifiers for objects
1481 that may be accessible beyond the local system</para>
1482 <indexterm zone="ch-system-util-linux libuuid">
1483 <primary sortas="c-libuuid">libuuid</primary>
1484 </indexterm>
1485 </listitem>
1486 </varlistentry>
1487
1488 </variablelist>
1489
1490 </sect2>
1491
1492</sect1>
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