source: chapter06/util-linux.xml@ 5d327ae

multilib-10.1
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MultiLib: Merge changes from trunk

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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-ch6-sbu;</seg>
36 <seg>&util-linux-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. First create a directory
49 to enable storage for the <command>hwclock</command> program:</para>
50
51<screen><userinput remap="pre">mkdir -pv /var/lib/hwclock</userinput></screen>
52
53 </sect2>
54
55 <sect2 role="installation">
56 <title>Installation of Util-linux</title>
57<!--
58 <para>First, fix one of the regression tests:</para>
59
60<screen><userinput remap="pre">sed -e 's/2^64/(2^64/' -e 's/E &lt;/E) &lt;=/' -e 's/ne /eq /' \
61 -i tests/ts/ipcs/limits2</userinput></screen>
62-->
63 <para revision="systemd">Remove the earlier created symlinks:</para>
64
65<screen revision="systemd"><userinput remap="pre">rm -vf /usr/include/{blkid,libmount,uuid}</userinput></screen>
66
67 <para>Prepare Util-linux for compilation:</para>
68
69<screen revision="sysv"><userinput remap="configure">./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
70 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
71 --disable-chfn-chsh \
72 --disable-login \
73 --disable-nologin \
74 --disable-su \
75 --disable-setpriv \
76 --disable-runuser \
77 --disable-pylibmount \
78 --disable-static \
79 --without-python \
80 --without-systemd \
81 --without-systemdsystemunitdir</userinput></screen>
82
83<screen revision="systemd"><userinput remap="configure">./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
84 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
85 --disable-chfn-chsh \
86 --disable-login \
87 --disable-nologin \
88 --disable-su \
89 --disable-setpriv \
90 --disable-runuser \
91 --disable-pylibmount \
92 --disable-static \
93 --without-python</userinput></screen>
94
95 <para>The --disable and --without options prevent warnings about
96 building components that require packages not in LFS or are
97 inconsistent with programs installed by other packages.</para>
98
99 <para>Compile the package:</para>
100
101<screen><userinput remap="make">make</userinput></screen>
102
103 <para>If desired, run the test suite as a non-root user:</para>
104
105 <warning><para>Running the test suite as the root user can be harmful to
106 your system. To run it, the CONFIG_SCSI_DEBUG option for the kernel must
107 be available in the currently running system, and must be built as a
108 module. Building it into the kernel will prevent booting. For complete
109 coverage, other BLFS packages must be installed. If desired, this test can
110 be run after rebooting into the completed LFS system and running:</para>
111
112 <screen role="nodump"><userinput>bash tests/run.sh --srcdir=$PWD --builddir=$PWD</userinput></screen>
113 </warning>
114
115 <screen><userinput remap="test">chown -Rv nobody .
116su nobody -s /bin/bash -c "PATH=$PATH make -k check"</userinput></screen>
117
118 <para>Install the package:</para>
119
120<screen><userinput remap="install">make install</userinput></screen>
121
122 </sect2>
123
124 <!-- ~~~~~~~~~~~~~~~~~~~~ ABI 32 ~~~~~~~~~~~~~~~~~~~~ -->
125
126 <sect2 arch="ml_32,ml_all" role="installation">
127 <title>Installation of Util-linux - 32-bit</title>
128
129 <para>Clean previous build:</para>
130
131<screen><userinput remap="pre">make distclean</userinput></screen>
132
133 <para>Prepare Util-linux for compilation:</para>
134
135<screen revision="sysv"><userinput remap="configure">CC="gcc -m32" \
136./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
137 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
138 --disable-chfn-chsh \
139 --disable-login \
140 --disable-nologin \
141 --disable-su \
142 --disable-setpriv \
143 --disable-runuser \
144 --disable-pylibmount \
145 --disable-static \
146 --without-python \
147 --without-systemd \
148 --libdir=/usr/lib32 \
149 --host=i686-pc-linux-gnu \
150 --without-systemdsystemunitdir \
151 --enable-libmount-force-mountinfo</userinput></screen>
152
153<screen revision="systemd"><userinput remap="configure">CC="gcc -m32" \
154./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
155 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
156 --disable-chfn-chsh \
157 --disable-login \
158 --disable-nologin \
159 --disable-su \
160 --disable-setpriv \
161 --disable-runuser \
162 --disable-pylibmount \
163 --disable-static \
164 --without-python \
165 --libdir=/usr/lib32 \
166 --host=i686-pc-linux-gnu \
167 --enable-libmount-force-mountinfo</userinput></screen>
168
169 <para>Compile the package:</para>
170
171<screen><userinput remap="make">make</userinput></screen>
172
173 <para>Install the package:</para>
174
175<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
176cp -Rv DESTDIR/usr/lib32/* /usr/lib32
177rm -rf DESTDIR</userinput></screen>
178
179 </sect2>
180
181 <!-- ~~~~~~~~~~~~~~~~~~~~ ABI x32 ~~~~~~~~~~~~~~~~~~~~ -->
182
183 <sect2 arch="ml_x32,ml_all" role="installation">
184 <title>Installation of Util-linux - x32-bit</title>
185
186 <para>Clean previous build:</para>
187
188<screen><userinput remap="pre">make distclean</userinput></screen>
189
190 <para>Prepare Util-linux for compilation:</para>
191
192<screen revision="sysv"><userinput remap="configure">CC="gcc -mx32" \
193./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
194 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
195 --disable-chfn-chsh \
196 --disable-login \
197 --disable-nologin \
198 --disable-su \
199 --disable-setpriv \
200 --disable-runuser \
201 --disable-pylibmount \
202 --disable-static \
203 --without-python \
204 --without-systemd \
205 --without-systemdsystemunitdir \
206 --libdir=/usr/libx32 \
207 --host=x86_64-pc-linux-gnux32 \
208 --enable-libmount-force-mountinfo</userinput></screen>
209
210<screen revision="systemd"><userinput remap="configure">CC="gcc -mx32" \
211./configure ADJTIME_PATH=/var/lib/hwclock/adjtime \
212 --docdir=/usr/share/doc/util-linux-&util-linux-version; \
213 --disable-chfn-chsh \
214 --disable-login \
215 --disable-nologin \
216 --disable-su \
217 --disable-setpriv \
218 --disable-runuser \
219 --disable-pylibmount \
220 --disable-static \
221 --without-python \
222 --libdir=/usr/libx32 \
223 --host=x86_64-pc-linux-gnux32 \
224 --enable-libmount-force-mountinfo</userinput></screen>
225
226 <para>Compile the package:</para>
227
228<screen><userinput remap="make">make</userinput></screen>
229
230 <para>Install the package:</para>
231
232<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
233cp -Rv DESTDIR/usr/libx32/* /usr/libx32
234rm -rf DESTDIR</userinput></screen>
235
236 </sect2>
237
238 <sect2 id="contents-utillinux" role="content">
239 <title>Contents of Util-linux</title>
240
241 <segmentedlist>
242 <segtitle>Installed programs</segtitle>
243 <segtitle>Installed libraries</segtitle>
244 <segtitle>Installed directories</segtitle>
245
246 <seglistitem>
247 <seg>addpart, agetty, blkdiscard, blkid, blkzone, blockdev, cal, cfdisk, chcpu,
248 chmem, choom, chrt, col, colcrt, colrm, column, ctrlaltdel, delpart, dmesg,
249 eject, fallocate, fdformat, fdisk, fincore, findfs, findmnt, flock, fsck,
250 fsck.cramfs, fsck.minix, fsfreeze, fstrim, getopt, hexdump, hwclock,
251 i386, ionice, ipcmk, ipcrm, ipcs, isosize, kill, last, lastb (link to
252 last), ldattach, linux32, linux64, logger, look, losetup, lsblk, lscpu,
253 lsipc, lslocks, lslogins, lsmem, lsns, mcookie, mesg, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap,
254 more, mount, mountpoint, namei, nsenter, partx, pivot_root, prlimit, raw,
255 readprofile, rename, renice, resizepart, rev, rfkill, rtcwake, script,
256 scriptreplay, setarch, setsid, setterm, sfdisk, sulogin, swaplabel,
257 swapoff (link to swapon), swapon, switch_root, taskset, ul,
258 umount, uname26, unshare, utmpdump, uuidd, uuidgen, uuidparse, wall, wdctl, whereis,
259 wipefs, x86_64, and zramctl</seg>
260 <seg>libblkid.so, libfdisk.so, libmount.so,
261 libsmartcols.so, and libuuid.so</seg>
262 <seg>/usr/include/blkid,
263 /usr/include/libfdisk,
264 /usr/include/libmount,
265 /usr/include/libsmartcols,
266 /usr/include/uuid,
267 /usr/share/doc/util-linux-&util-linux-version;,
268 and /var/lib/hwclock</seg>
269 </seglistitem>
270 </segmentedlist>
271
272 <variablelist>
273 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
274 <?dbfo list-presentation="list"?>
275 <?dbhtml list-presentation="table"?>
276
277 <varlistentry id="addpart">
278 <term><command>addpart</command></term>
279 <listitem>
280 <para>Informs the Linux kernel of new partitions</para>
281 <indexterm zone="ch-system-util-linux addpart">
282 <primary sortas="b-addpart">addpart</primary>
283 </indexterm>
284 </listitem>
285 </varlistentry>
286
287 <varlistentry id="agetty">
288 <term><command>agetty</command></term>
289 <listitem>
290 <para>Opens a tty port, prompts for a login name,
291 and then invokes the <command>login</command> program</para>
292 <indexterm zone="ch-system-util-linux agetty">
293 <primary sortas="b-agetty">agetty</primary>
294 </indexterm>
295 </listitem>
296 </varlistentry>
297
298 <varlistentry id="blkdiscard">
299 <term><command>blkdiscard</command></term>
300 <listitem>
301 <para>Discards sectors on a device</para>
302 <indexterm zone="ch-system-util-linux blkdiscard">
303 <primary sortas="b-blkdiscard">blkdiscard</primary>
304 </indexterm>
305 </listitem>
306 </varlistentry>
307
308 <varlistentry id="blkid">
309 <term><command>blkid</command></term>
310 <listitem>
311 <para>A command line utility to locate and print block device
312 attributes</para>
313 <indexterm zone="ch-system-util-linux blkid">
314 <primary sortas="b-blkid">blkid</primary>
315 </indexterm>
316 </listitem>
317 </varlistentry>
318
319 <varlistentry id="blkzone">
320 <term><command>blkzone</command></term>
321 <listitem>
322 <para>Runs zone command on the given block device</para>
323 <indexterm zone="ch-system-util-linux blkzone">
324 <primary sortas="b-blkzone">blkzone</primary>
325 </indexterm>
326 </listitem>
327 </varlistentry>
328
329 <varlistentry id="blockdev">
330 <term><command>blockdev</command></term>
331 <listitem>
332 <para>Allows users to call block device ioctls from the command
333 line</para>
334 <indexterm zone="ch-system-util-linux blockdev">
335 <primary sortas="b-blockdev">blockdev</primary>
336 </indexterm>
337 </listitem>
338 </varlistentry>
339
340 <varlistentry id="cal">
341 <term><command>cal</command></term>
342 <listitem>
343 <para>Displays a simple calendar</para>
344 <indexterm zone="ch-system-util-linux cal">
345 <primary sortas="b-cal">cal</primary>
346 </indexterm>
347 </listitem>
348 </varlistentry>
349
350 <varlistentry id="cfdisk">
351 <term><command>cfdisk</command></term>
352 <listitem>
353 <para>Manipulates the partition table of the given device</para>
354 <indexterm zone="ch-system-util-linux cfdisk">
355 <primary sortas="b-cfdisk">cfdisk</primary>
356 </indexterm>
357 </listitem>
358 </varlistentry>
359
360 <varlistentry id="chcpu">
361 <term><command>chcpu</command></term>
362 <listitem>
363 <para>Modifies the state of CPUs</para>
364 <indexterm zone="ch-system-util-linux chcpu">
365 <primary sortas="b-chcpu">chcpu</primary>
366 </indexterm>
367 </listitem>
368 </varlistentry>
369
370 <varlistentry id="chmem">
371 <term><command>chmem</command></term>
372 <listitem>
373 <para>Configures memory</para>
374 <indexterm zone="ch-system-util-linux chmem">
375 <primary sortas="b-chmem">chmem</primary>
376 </indexterm>
377 </listitem>
378 </varlistentry>
379
380 <varlistentry id="choom">
381 <term><command>choom</command></term>
382 <listitem>
383 <para>Displays and adjusts OOM-killer score</para>
384 <indexterm zone="ch-system-util-linux choom">
385 <primary sortas="b-choom">choom</primary>
386 </indexterm>
387 </listitem>
388 </varlistentry>
389
390 <varlistentry id="chrt">
391 <term><command>chrt</command></term>
392 <listitem>
393 <para>Manipulates real-time attributes of a process</para>
394 <indexterm zone="ch-system-util-linux chrt">
395 <primary sortas="b-chrt">chrt</primary>
396 </indexterm>
397 </listitem>
398 </varlistentry>
399
400 <varlistentry id="col">
401 <term><command>col</command></term>
402 <listitem>
403 <para>Filters out reverse line feeds</para>
404 <indexterm zone="ch-system-util-linux col">
405 <primary sortas="b-col">col</primary>
406 </indexterm>
407 </listitem>
408 </varlistentry>
409
410 <varlistentry id="colcrt">
411 <term><command>colcrt</command></term>
412 <listitem>
413 <para>Filters <command>nroff</command> output for terminals
414 that lack some capabilities, such as overstriking and half-lines</para>
415 <indexterm zone="ch-system-util-linux colcrt">
416 <primary sortas="b-colcrt">colcrt</primary>
417 </indexterm>
418 </listitem>
419 </varlistentry>
420
421 <varlistentry id="colrm">
422 <term><command>colrm</command></term>
423 <listitem>
424 <para>Filters out the given columns</para>
425 <indexterm zone="ch-system-util-linux colrm">
426 <primary sortas="b-colrm">colrm</primary>
427 </indexterm>
428 </listitem>
429 </varlistentry>
430
431 <varlistentry id="column">
432 <term><command>column</command></term>
433 <listitem>
434 <para>Formats a given file into multiple columns</para>
435 <indexterm zone="ch-system-util-linux column">
436 <primary sortas="b-column">column</primary>
437 </indexterm>
438 </listitem>
439 </varlistentry>
440
441 <varlistentry id="ctrlaltdel">
442 <term><command>ctrlaltdel</command></term>
443 <listitem>
444 <para>Sets the function of the Ctrl+Alt+Del key combination to a
445 hard or a soft reset</para>
446 <indexterm zone="ch-system-util-linux ctrlaltdel">
447 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
448 </indexterm>
449 </listitem>
450 </varlistentry>
451
452 <varlistentry id="delpart">
453 <term><command>delpart</command></term>
454 <listitem>
455 <para>Asks the Linux kernel to remove a partition</para>
456 <indexterm zone="ch-system-util-linux delpart">
457 <primary sortas="b-delpart">delpart</primary>
458 </indexterm>
459 </listitem>
460 </varlistentry>
461
462 <varlistentry id="dmesg">
463 <term><command>dmesg</command></term>
464 <listitem>
465 <para>Dumps the kernel boot messages</para>
466 <indexterm zone="ch-system-util-linux dmesg">
467 <primary sortas="b-dmesg">dmesg</primary>
468 </indexterm>
469 </listitem>
470 </varlistentry>
471
472 <varlistentry id="eject">
473 <term><command>eject</command></term>
474 <listitem>
475 <para>Ejects removable media</para>
476 <indexterm zone="ch-system-util-linux eject">
477 <primary sortas="b-eject">eject</primary>
478 </indexterm>
479 </listitem>
480 </varlistentry>
481
482 <varlistentry id="fallocate">
483 <term><command>fallocate</command></term>
484 <listitem>
485 <para>Preallocates space to a file</para>
486 <indexterm zone="ch-system-util-linux fallocate">
487 <primary sortas="b-fallocate">fallocate</primary>
488 </indexterm>
489 </listitem>
490 </varlistentry>
491
492 <varlistentry id="fdformat">
493 <term><command>fdformat</command></term>
494 <listitem>
495 <para>Low-level formats a floppy disk</para>
496 <indexterm zone="ch-system-util-linux fdformat">
497 <primary sortas="b-fdformat">fdformat</primary>
498 </indexterm>
499 </listitem>
500 </varlistentry>
501
502 <varlistentry id="fdisk">
503 <term><command>fdisk</command></term>
504 <listitem>
505 <para>Manipulates the partition table of the given device</para>
506 <indexterm zone="ch-system-util-linux fdisk">
507 <primary sortas="b-fdisk">fdisk</primary>
508 </indexterm>
509 </listitem>
510 </varlistentry>
511
512 <varlistentry id="fincore">
513 <term><command>fincore</command></term>
514 <listitem>
515 <para>Counts pages of file contents in core</para>
516 <indexterm zone="ch-system-util-linux fincore">
517 <primary sortas="b-fincore">fincore</primary>
518 </indexterm>
519 </listitem>
520 </varlistentry>
521
522 <varlistentry id="findfs">
523 <term><command>findfs</command></term>
524 <listitem>
525 <para>Finds a file system by label or Universally Unique Identifier
526 (UUID)</para>
527 <indexterm zone="ch-system-util-linux findfs">
528 <primary sortas="b-findfs">findfs</primary>
529 </indexterm>
530 </listitem>
531 </varlistentry>
532
533 <varlistentry id="findmnt">
534 <term><command>findmnt</command></term>
535 <listitem>
536 <para>Is a command line interface to the libmount library
537 for work with mountinfo, fstab and mtab files</para>
538 <indexterm zone="ch-system-util-linux findmnt">
539 <primary sortas="b-findmnt">findmnt</primary>
540 </indexterm>
541 </listitem>
542 </varlistentry>
543
544 <varlistentry id="flock">
545 <term><command>flock</command></term>
546 <listitem>
547 <para>Acquires a file lock and then executes a command with the lock
548 held</para>
549 <indexterm zone="ch-system-util-linux flock">
550 <primary sortas="b-flock">flock</primary>
551 </indexterm>
552 </listitem>
553 </varlistentry>
554
555 <varlistentry id="fsck">
556 <term><command>fsck</command></term>
557 <listitem>
558 <para>Is used to check, and optionally repair, file systems</para>
559 <indexterm zone="ch-system-util-linux fsck">
560 <primary sortas="b-fsck">fsck</primary>
561 </indexterm>
562 </listitem>
563 </varlistentry>
564
565 <varlistentry id="fsck.cramfs">
566 <term><command>fsck.cramfs</command></term>
567 <listitem>
568 <para>Performs a consistency check on the Cramfs file system on the
569 given device</para>
570 <indexterm zone="ch-system-util-linux fsck.cramfs">
571 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
572 </indexterm>
573 </listitem>
574 </varlistentry>
575
576 <varlistentry id="fsck.minix">
577 <term><command>fsck.minix</command></term>
578 <listitem>
579 <para>Performs a consistency check on the Minix file system on the
580 given device</para>
581 <indexterm zone="ch-system-util-linux fsck.minix">
582 <primary sortas="b-fsck.minix">fsck.minix</primary>
583 </indexterm>
584 </listitem>
585 </varlistentry>
586
587 <varlistentry id="fsfreeze">
588 <term><command>fsfreeze</command></term>
589 <listitem>
590 <para>Is a very simple wrapper around FIFREEZE/FITHAW ioctl
591 kernel driver operations</para>
592 <indexterm zone="ch-system-util-linux fsfreeze">
593 <primary sortas="b-fsfreeze">fsfreeze</primary>
594 </indexterm>
595 </listitem>
596 </varlistentry>
597
598 <varlistentry id="fstrim">
599 <term><command>fstrim</command></term>
600 <listitem>
601 <para>Discards unused blocks on a mounted filesystem</para>
602 <indexterm zone="ch-system-util-linux fstrim">
603 <primary sortas="b-fstrim">fstrim</primary>
604 </indexterm>
605 </listitem>
606 </varlistentry>
607
608 <varlistentry id="getopt">
609 <term><command>getopt</command></term>
610 <listitem>
611 <para>Parses options in the given command line</para>
612 <indexterm zone="ch-system-util-linux getopt">
613 <primary sortas="b-getopt">getopt</primary>
614 </indexterm>
615 </listitem>
616 </varlistentry>
617
618 <varlistentry id="hexdump">
619 <term><command>hexdump</command></term>
620 <listitem>
621 <para>Dumps the given file in hexadecimal or in another given
622 format</para>
623 <indexterm zone="ch-system-util-linux hexdump">
624 <primary sortas="b-hexdump">hexdump</primary>
625 </indexterm>
626 </listitem>
627 </varlistentry>
628
629 <varlistentry id="hwclock">
630 <term><command>hwclock</command></term>
631 <listitem>
632 <para>Reads or sets the system's hardware clock, also called
633 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
634 clock</para>
635 <indexterm zone="ch-system-util-linux hwclock">
636 <primary sortas="b-hwclock">hwclock</primary>
637 </indexterm>
638 </listitem>
639 </varlistentry>
640
641 <varlistentry id="i386">
642 <term><command>i386</command></term>
643 <listitem>
644 <para>A symbolic link to setarch</para>
645 <indexterm zone="ch-system-util-linux i386">
646 <primary sortas="b-i386">i386</primary>
647 </indexterm>
648 </listitem>
649 </varlistentry>
650
651 <varlistentry id="ionice">
652 <term><command>ionice</command></term>
653 <listitem>
654 <para>Gets or sets the io scheduling class and priority for a program</para>
655 <indexterm zone="ch-system-util-linux ionice">
656 <primary sortas="b-ionice">ionice</primary>
657 </indexterm>
658 </listitem>
659 </varlistentry>
660
661 <varlistentry id="ipcmk">
662 <term><command>ipcmk</command></term>
663 <listitem>
664 <para>Creates various IPC resources</para>
665 <indexterm zone="ch-system-util-linux ipcmk">
666 <primary sortas="b-ipcmk">ipcmk</primary>
667 </indexterm>
668 </listitem>
669 </varlistentry>
670
671 <varlistentry id="ipcrm">
672 <term><command>ipcrm</command></term>
673 <listitem>
674 <para>Removes the given Inter-Process Communication (IPC) resource</para>
675 <indexterm zone="ch-system-util-linux ipcrm">
676 <primary sortas="b-ipcrm">ipcrm</primary>
677 </indexterm>
678 </listitem>
679 </varlistentry>
680
681 <varlistentry id="ipcs">
682 <term><command>ipcs</command></term>
683 <listitem>
684 <para>Provides IPC status information</para>
685 <indexterm zone="ch-system-util-linux ipcs">
686 <primary sortas="b-ipcs">ipcs</primary>
687 </indexterm>
688 </listitem>
689 </varlistentry>
690
691 <varlistentry id="isosize">
692 <term><command>isosize</command></term>
693 <listitem>
694 <para>Reports the size of an iso9660 file system</para>
695 <indexterm zone="ch-system-util-linux isosize">
696 <primary sortas="b-isosize">isosize</primary>
697 </indexterm>
698 </listitem>
699 </varlistentry>
700
701 <varlistentry id="kill">
702 <term><command>kill</command></term>
703 <listitem>
704 <para>Sends signals to processes</para>
705 <indexterm zone="ch-system-util-linux kill">
706 <primary sortas="b-kill">kill</primary>
707 </indexterm>
708 </listitem>
709 </varlistentry>
710
711 <varlistentry id="last">
712 <term><command>last</command></term>
713 <listitem>
714 <para>Shows which users last logged in (and out), searching back
715 through the <filename>/var/log/wtmp</filename> file; it also shows
716 system boots, shutdowns, and run-level changes</para>
717 <indexterm zone="ch-system-util-linux last">
718 <primary sortas="b-last">last</primary>
719 </indexterm>
720 </listitem>
721 </varlistentry>
722
723 <varlistentry id="lastb">
724 <term><command>lastb</command></term>
725 <listitem>
726 <para>Shows the failed login attempts, as logged in
727 <filename>/var/log/btmp</filename></para>
728 <indexterm zone="ch-system-util-linux lastb">
729 <primary sortas="b-lastb">lastb</primary>
730 </indexterm>
731 </listitem>
732 </varlistentry>
733
734 <varlistentry id="ldattach">
735 <term><command>ldattach</command></term>
736 <listitem>
737 <para>Attaches a line discipline to a serial line</para>
738 <indexterm zone="ch-system-util-linux ldattach">
739 <primary sortas="b-ldattach">ldattach</primary>
740 </indexterm>
741 </listitem>
742 </varlistentry>
743
744 <varlistentry id="linux32">
745 <term><command>linux32</command></term>
746 <listitem>
747 <para>A symbolic link to setarch</para>
748 <indexterm zone="ch-system-util-linux linux32">
749 <primary sortas="b-linux32">linux32</primary>
750 </indexterm>
751 </listitem>
752 </varlistentry>
753
754 <varlistentry id="linux64">
755 <term><command>linux64</command></term>
756 <listitem>
757 <para>A symbolic link to setarch</para>
758 <indexterm zone="ch-system-util-linux linux64">
759 <primary sortas="b-linux64">linux64</primary>
760 </indexterm>
761 </listitem>
762 </varlistentry>
763
764 <varlistentry id="logger">
765 <term><command>logger</command></term>
766 <listitem>
767 <para>Enters the given message into the system log</para>
768 <indexterm zone="ch-system-util-linux logger">
769 <primary sortas="b-logger">logger</primary>
770 </indexterm>
771 </listitem>
772 </varlistentry>
773
774 <varlistentry id="look">
775 <term><command>look</command></term>
776 <listitem>
777 <para>Displays lines that begin with the given string</para>
778 <indexterm zone="ch-system-util-linux look">
779 <primary sortas="b-look">look</primary>
780 </indexterm>
781 </listitem>
782 </varlistentry>
783
784 <varlistentry id="losetup">
785 <term><command>losetup</command></term>
786 <listitem>
787 <para>Sets up and controls loop devices</para>
788 <indexterm zone="ch-system-util-linux losetup">
789 <primary sortas="b-losetup">losetup</primary>
790 </indexterm>
791 </listitem>
792 </varlistentry>
793
794 <varlistentry id="lsblk">
795 <term><command>lsblk</command></term>
796 <listitem>
797 <para>Lists information about all or selected block devices in
798 a tree-like format</para>
799 <indexterm zone="ch-system-util-linux lsblk">
800 <primary sortas="b-lsblk">lsblk</primary>
801 </indexterm>
802 </listitem>
803 </varlistentry>
804
805 <varlistentry id="lscpu">
806 <term><command>lscpu</command></term>
807 <listitem>
808 <para>Prints CPU architecture information</para>
809 <indexterm zone="ch-system-util-linux lscpu">
810 <primary sortas="b-lscpu">lscpu</primary>
811 </indexterm>
812 </listitem>
813 </varlistentry>
814
815 <varlistentry id="lsipc">
816 <term><command>lsipc</command></term>
817 <listitem>
818 <para>Prints information on IPC facilities currently employed
819 in the system</para>
820 <indexterm zone="ch-system-util-linux lsipc">
821 <primary sortas="b-lsipc">lsipc</primary>
822 </indexterm>
823 </listitem>
824 </varlistentry>
825
826 <varlistentry id="lslocks">
827 <term><command>lslocks</command></term>
828 <listitem>
829 <para>Lists local system locks</para>
830 <indexterm zone="ch-system-util-linux lslocks">
831 <primary sortas="b-lslocks">lslocks</primary>
832 </indexterm>
833 </listitem>
834 </varlistentry>
835
836 <varlistentry id="lslogins">
837 <term><command>lslogins</command></term>
838 <listitem>
839 <para>Lists information about users, groups and system accounts</para>
840 <indexterm zone="ch-system-util-linux lslogins">
841 <primary sortas="b-lslogins">lslogins</primary>
842 </indexterm>
843 </listitem>
844 </varlistentry>
845
846 <varlistentry id="lsmem">
847 <term><command>lsmem</command></term>
848 <listitem>
849 <para>Lists the ranges of available memory with their online
850 status</para>
851 <indexterm zone="ch-system-util-linux lsmem">
852 <primary sortas="b-lsmem">lsmem</primary>
853 </indexterm>
854 </listitem>
855 </varlistentry>
856
857 <varlistentry id="lsns">
858 <term><command>lsns</command></term>
859 <listitem>
860 <para>Lists namespaces</para>
861 <indexterm zone="ch-system-util-linux lsns">
862 <primary sortas="b-lsns">lsns</primary>
863 </indexterm>
864 </listitem>
865 </varlistentry>
866
867 <varlistentry id="mcookie">
868 <term><command>mcookie</command></term>
869 <listitem>
870 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
871 <command>xauth</command></para>
872 <indexterm zone="ch-system-util-linux mcookie">
873 <primary sortas="b-mcookie">mcookie</primary>
874 </indexterm>
875 </listitem>
876 </varlistentry>
877
878 <varlistentry id="mesg">
879 <term><command>mesg</command></term>
880 <listitem>
881 <para>Controls whether other users can send messages to the current
882 user's terminal</para>
883 <indexterm zone="ch-system-util-linux mesg">
884 <primary sortas="b-mesg">mesg</primary>
885 </indexterm>
886 </listitem>
887 </varlistentry>
888
889 <varlistentry id="mkfs">
890 <term><command>mkfs</command></term>
891 <listitem>
892 <para>Builds a file system on a device (usually a hard disk
893 partition)</para>
894 <indexterm zone="ch-system-util-linux mkfs">
895 <primary sortas="b-mkfs">mkfs</primary>
896 </indexterm>
897 </listitem>
898 </varlistentry>
899
900 <varlistentry id="mkfs.bfs">
901 <term><command>mkfs.bfs</command></term>
902 <listitem>
903 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
904 <indexterm zone="ch-system-util-linux mkfs.bfs">
905 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
906 </indexterm>
907 </listitem>
908 </varlistentry>
909
910 <varlistentry id="mkfs.cramfs">
911 <term><command>mkfs.cramfs</command></term>
912 <listitem>
913 <para>Creates a cramfs file system</para>
914 <indexterm zone="ch-system-util-linux mkfs.cramfs">
915 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
916 </indexterm>
917 </listitem>
918 </varlistentry>
919
920 <varlistentry id="mkfs.minix">
921 <term><command>mkfs.minix</command></term>
922 <listitem>
923 <para>Creates a Minix file system</para>
924 <indexterm zone="ch-system-util-linux mkfs.minix">
925 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
926 </indexterm>
927 </listitem>
928 </varlistentry>
929
930 <varlistentry id="mkswap">
931 <term><command>mkswap</command></term>
932 <listitem>
933 <para>Initializes the given device or file to be used as a swap
934 area</para>
935 <indexterm zone="ch-system-util-linux mkswap">
936 <primary sortas="b-mkswap">mkswap</primary>
937 </indexterm>
938 </listitem>
939 </varlistentry>
940
941 <varlistentry id="more">
942 <term><command>more</command></term>
943 <listitem>
944 <para>A filter for paging through text one screen at a time</para>
945 <indexterm zone="ch-system-util-linux more">
946 <primary sortas="b-more">more</primary>
947 </indexterm>
948 </listitem>
949 </varlistentry>
950
951 <varlistentry id="mount">
952 <term><command>mount</command></term>
953 <listitem>
954 <para>Attaches the file system on the given device to a specified
955 directory in the file-system tree</para>
956 <indexterm zone="ch-system-util-linux mount">
957 <primary sortas="b-mount">mount</primary>
958 </indexterm>
959 </listitem>
960 </varlistentry>
961
962 <varlistentry id="mountpoint">
963 <term><command>mountpoint</command></term>
964 <listitem>
965 <para>Checks if the directory is a mountpoint</para>
966 <indexterm zone="ch-system-util-linux mountpoint">
967 <primary sortas="b-mountpoint">mountpoint</primary>
968 </indexterm>
969 </listitem>
970 </varlistentry>
971
972 <varlistentry id="namei">
973 <term><command>namei</command></term>
974 <listitem>
975 <para>Shows the symbolic links in the given pathnames</para>
976 <indexterm zone="ch-system-util-linux namei">
977 <primary sortas="b-namei">namei</primary>
978 </indexterm>
979 </listitem>
980 </varlistentry>
981
982 <varlistentry id="nsenter">
983 <term><command>nsenter</command></term>
984 <listitem>
985 <para>Runs a program with namespaces of other processes</para>
986 <indexterm zone="ch-system-util-linux nsenter">
987 <primary sortas="b-nsenter">nsenter</primary>
988 </indexterm>
989 </listitem>
990 </varlistentry>
991
992 <varlistentry id="partx">
993 <term><command>partx</command></term>
994 <listitem>
995 <para>Tells the kernel about the presence and numbering of on-disk
996 partitions</para>
997 <indexterm zone="ch-system-util-linux partx">
998 <primary sortas="b-partx">partx</primary>
999 </indexterm>
1000 </listitem>
1001 </varlistentry>
1002
1003 <varlistentry id="pivot_root">
1004 <term><command>pivot_root</command></term>
1005 <listitem>
1006 <para>Makes the given file system the new root file system of the
1007 current process</para>
1008 <indexterm zone="ch-system-util-linux pivot_root">
1009 <primary sortas="b-pivot_root">pivot_root</primary>
1010 </indexterm>
1011 </listitem>
1012 </varlistentry>
1013
1014 <varlistentry id="prlimit">
1015 <term><command>prlimit</command></term>
1016 <listitem>
1017 <para>Get and set a process' resource limits</para>
1018 <indexterm zone="ch-system-util-linux prlimit">
1019 <primary sortas="b-prlimit">prlimit</primary>
1020 </indexterm>
1021 </listitem>
1022 </varlistentry>
1023
1024 <varlistentry id="raw">
1025 <term><command>raw</command></term>
1026 <listitem>
1027 <para>Bind a Linux raw character device to a block device</para>
1028 <indexterm zone="ch-system-util-linux raw">
1029 <primary sortas="b-raw">raw</primary>
1030 </indexterm>
1031 </listitem>
1032 </varlistentry>
1033
1034 <varlistentry id="readprofile">
1035 <term><command>readprofile</command></term>
1036 <listitem>
1037 <para>Reads kernel profiling information</para>
1038 <indexterm zone="ch-system-util-linux readprofile">
1039 <primary sortas="b-readprofile">readprofile</primary>
1040 </indexterm>
1041 </listitem>
1042 </varlistentry>
1043
1044 <varlistentry id="rename">
1045 <term><command>rename</command></term>
1046 <listitem>
1047 <para>Renames the given files, replacing a given string with
1048 another</para>
1049 <indexterm zone="ch-system-util-linux rename">
1050 <primary sortas="b-rename">rename</primary>
1051 </indexterm>
1052 </listitem>
1053 </varlistentry>
1054
1055 <varlistentry id="renice">
1056 <term><command>renice</command></term>
1057 <listitem>
1058 <para>Alters the priority of running processes</para>
1059 <indexterm zone="ch-system-util-linux renice">
1060 <primary sortas="b-renice">renice</primary>
1061 </indexterm>
1062 </listitem>
1063 </varlistentry>
1064
1065 <varlistentry id="resizepart">
1066 <term><command>resizepart</command></term>
1067 <listitem>
1068 <para>Asks the Linux kernel to resize a partition</para>
1069 <indexterm zone="ch-system-util-linux resizepart">
1070 <primary sortas="b-resizepart">resizepart</primary>
1071 </indexterm>
1072 </listitem>
1073 </varlistentry>
1074
1075 <varlistentry id="rev">
1076 <term><command>rev</command></term>
1077 <listitem>
1078 <para>Reverses the lines of a given file</para>
1079 <indexterm zone="ch-system-util-linux rev">
1080 <primary sortas="b-rev">rev</primary>
1081 </indexterm>
1082 </listitem>
1083 </varlistentry>
1084
1085 <varlistentry id="rkfill">
1086 <term><command>rkfill</command></term>
1087 <listitem>
1088 <para>Tool for enabling and disabling wireless devices</para>
1089 <indexterm zone="ch-system-util-linux rkfill">
1090 <primary sortas="b-rkfill">rkfill</primary>
1091 </indexterm>
1092 </listitem>
1093 </varlistentry>
1094
1095 <varlistentry id="rtcwake">
1096 <term><command>rtcwake</command></term>
1097 <listitem>
1098 <para>Used to enter a system sleep state until specified wakeup
1099 time</para>
1100 <indexterm zone="ch-system-util-linux rtcwake">
1101 <primary sortas="b-rtcwake">rtcwake</primary>
1102 </indexterm>
1103 </listitem>
1104 </varlistentry>
1105
1106 <varlistentry id="script">
1107 <term><command>script</command></term>
1108 <listitem>
1109 <para>Makes a typescript of a terminal session</para>
1110 <indexterm zone="ch-system-util-linux script">
1111 <primary sortas="b-script">script</primary>
1112 </indexterm>
1113 </listitem>
1114 </varlistentry>
1115
1116 <varlistentry id="scriptreplay">
1117 <term><command>scriptreplay</command></term>
1118 <listitem>
1119 <para>Plays back typescripts using timing information</para>
1120 <indexterm zone="ch-system-util-linux scriptreplay">
1121 <primary sortas="b-scriptreplay">scriptreplay</primary>
1122 </indexterm>
1123 </listitem>
1124 </varlistentry>
1125
1126 <varlistentry id="setarch">
1127 <term><command>setarch</command></term>
1128 <listitem>
1129 <para>Changes reported architecture in a new program environment and
1130 sets personality flags</para>
1131 <indexterm zone="ch-system-util-linux setarch">
1132 <primary sortas="b-setarch">setarch</primary>
1133 </indexterm>
1134 </listitem>
1135 </varlistentry>
1136
1137 <varlistentry id="setsid">
1138 <term><command>setsid</command></term>
1139 <listitem>
1140 <para>Runs the given program in a new session</para>
1141 <indexterm zone="ch-system-util-linux setsid">
1142 <primary sortas="b-setsid">setsid</primary>
1143 </indexterm>
1144 </listitem>
1145 </varlistentry>
1146
1147 <varlistentry id="setterm">
1148 <term><command>setterm</command></term>
1149 <listitem>
1150 <para>Sets terminal attributes</para>
1151 <indexterm zone="ch-system-util-linux setterm">
1152 <primary sortas="b-setterm">setterm</primary>
1153 </indexterm>
1154 </listitem>
1155 </varlistentry>
1156
1157 <varlistentry id="sfdisk">
1158 <term><command>sfdisk</command></term>
1159 <listitem>
1160 <para>A disk partition table manipulator</para>
1161 <indexterm zone="ch-system-util-linux sfdisk">
1162 <primary sortas="b-sfdisk">sfdisk</primary>
1163 </indexterm>
1164 </listitem>
1165 </varlistentry>
1166
1167 <varlistentry id="sulogin">
1168 <term><command>sulogin</command></term>
1169 <listitem>
1170 <para>Allows <systemitem class="username">root</systemitem> to log in;
1171 it is normally invoked by <command>init</command> when the system goes
1172 into single user mode</para>
1173 <indexterm zone="ch-system-util-linux sulogin">
1174 <primary sortas="b-sulogin">sulogin</primary>
1175 </indexterm>
1176 </listitem>
1177 </varlistentry>
1178
1179 <varlistentry id="swaplabel">
1180 <term><command>swaplabel</command></term>
1181 <listitem>
1182 <para>Allows to change swaparea UUID and label</para>
1183 <indexterm zone="ch-system-util-linux swaplabel">
1184 <primary sortas="b-swaplabel">swaplabel</primary>
1185 </indexterm>
1186 </listitem>
1187 </varlistentry>
1188
1189 <varlistentry id="swapoff">
1190 <term><command>swapoff</command></term>
1191 <listitem>
1192 <para>Disables devices and files for paging and swapping</para>
1193 <indexterm zone="ch-system-util-linux swapoff">
1194 <primary sortas="b-swapoff">swapoff</primary>
1195 </indexterm>
1196 </listitem>
1197 </varlistentry>
1198
1199 <varlistentry id="swapon">
1200 <term><command>swapon</command></term>
1201 <listitem>
1202 <para>Enables devices and files for paging and swapping and
1203 lists the devices and files currently in use</para>
1204 <indexterm zone="ch-system-util-linux swapon">
1205 <primary sortas="b-swapon">swapon</primary>
1206 </indexterm>
1207 </listitem>
1208 </varlistentry>
1209
1210 <varlistentry id="switch_root">
1211 <term><command>switch_root</command></term>
1212 <listitem>
1213 <para>Switches to another filesystem as the root of the mount tree</para>
1214 <indexterm zone="ch-system-util-linux switch_root">
1215 <primary sortas="b-switch_root">switch_root</primary>
1216 </indexterm>
1217 </listitem>
1218 </varlistentry>
1219
1220 <varlistentry id="tailf">
1221 <term><command>tailf</command></term>
1222 <listitem>
1223 <para>Tracks the growth of a log file; displays the last 10 lines
1224 of a log file, then continues displaying any new entries in the
1225 log file as they are created</para>
1226 <indexterm zone="ch-system-util-linux tailf">
1227 <primary sortas="b-tailf">tailf</primary>
1228 </indexterm>
1229 </listitem>
1230 </varlistentry>
1231
1232 <varlistentry id="taskset">
1233 <term><command>taskset</command></term>
1234 <listitem>
1235 <para>Retrieves or sets a process' CPU affinity</para>
1236 <indexterm zone="ch-system-util-linux taskset">
1237 <primary sortas="b-taskset">taskset</primary>
1238 </indexterm>
1239 </listitem>
1240 </varlistentry>
1241
1242 <varlistentry id="ul">
1243 <term><command>ul</command></term>
1244 <listitem>
1245 <para>A filter for translating underscores into escape sequences
1246 indicating underlining for the terminal in use</para>
1247 <indexterm zone="ch-system-util-linux ul">
1248 <primary sortas="b-ul">ul</primary>
1249 </indexterm>
1250 </listitem>
1251 </varlistentry>
1252
1253 <varlistentry id="umount">
1254 <term><command>umount</command></term>
1255 <listitem>
1256 <para>Disconnects a file system from the system's file tree</para>
1257 <indexterm zone="ch-system-util-linux umount">
1258 <primary sortas="b-umount">umount</primary>
1259 </indexterm>
1260 </listitem>
1261 </varlistentry>
1262
1263 <varlistentry id="uname26">
1264 <term><command>uname26</command></term>
1265 <listitem>
1266 <para>A symbolic link to setarch</para>
1267 <indexterm zone="ch-system-util-linux uname26">
1268 <primary sortas="b-uname26">uname26</primary>
1269 </indexterm>
1270 </listitem>
1271 </varlistentry>
1272
1273 <varlistentry id="unshare">
1274 <term><command>unshare</command></term>
1275 <listitem>
1276 <para>Runs a program with some namespaces unshared from parent</para>
1277 <indexterm zone="ch-system-util-linux unshare">
1278 <primary sortas="b-unshare">unshare</primary>
1279 </indexterm>
1280 </listitem>
1281 </varlistentry>
1282
1283 <varlistentry id="utmpdump">
1284 <term><command>utmpdump</command></term>
1285 <listitem>
1286 <para>Displays the content of the given login file in a more
1287 user-friendly format</para>
1288 <indexterm zone="ch-system-util-linux utmpdump">
1289 <primary sortas="b-utmpdump">utmpdump</primary>
1290 </indexterm>
1291 </listitem>
1292 </varlistentry>
1293
1294 <varlistentry id="uuidd">
1295 <term><command>uuidd</command></term>
1296 <listitem>
1297 <para>A daemon used by the UUID library to generate time-based
1298 UUIDs in a secure and guaranteed-unique fashion</para>
1299 <indexterm zone="ch-system-util-linux uuidd">
1300 <primary sortas="b-uuidd">uuidd</primary>
1301 </indexterm>
1302 </listitem>
1303 </varlistentry>
1304
1305 <varlistentry id="uuidgen">
1306 <term><command>uuidgen</command></term>
1307 <listitem>
1308 <para>Creates new UUIDs. Each new UUID can reasonably be considered
1309 unique among all UUIDs created, on the local system and on other
1310 systems, in the past and in the future</para>
1311 <indexterm zone="ch-system-util-linux uuidgen">
1312 <primary sortas="b-uuidgen">uuidgen</primary>
1313 </indexterm>
1314 </listitem>
1315 </varlistentry>
1316
1317 <varlistentry id="uuidparse">
1318 <term><command>uuidparse</command></term>
1319 <listitem>
1320 <para>An utility to parse unique identifiers</para>
1321 <indexterm zone="ch-system-util-linux uuidparse">
1322 <primary sortas="b-uuidparse">uuidparse</primary>
1323 </indexterm>
1324 </listitem>
1325 </varlistentry>
1326
1327 <varlistentry id="wall">
1328 <term><command>wall</command></term>
1329 <listitem>
1330 <para>Displays the contents of a file or, by default, its standard
1331 input, on the terminals of all currently logged in users</para>
1332 <indexterm zone="ch-system-util-linux wall">
1333 <primary sortas="b-wall">wall</primary>
1334 </indexterm>
1335 </listitem>
1336 </varlistentry>
1337
1338 <varlistentry id="wdctl">
1339 <term><command>wdctl</command></term>
1340 <listitem>
1341 <para>Shows hardware watchdog status</para>
1342 <indexterm zone="ch-system-util-linux wdctl">
1343 <primary sortas="b-wdctl">wdctl</primary>
1344 </indexterm>
1345 </listitem>
1346 </varlistentry>
1347
1348 <varlistentry id="whereis">
1349 <term><command>whereis</command></term>
1350 <listitem>
1351 <para>Reports the location of the binary, source, and man page
1352 for the given command</para>
1353 <indexterm zone="ch-system-util-linux whereis">
1354 <primary sortas="b-whereis">whereis</primary>
1355 </indexterm>
1356 </listitem>
1357 </varlistentry>
1358
1359 <varlistentry id="wipefs">
1360 <term><command>wipefs</command></term>
1361 <listitem>
1362 <para>Wipes a filesystem signature from a device</para>
1363 <indexterm zone="ch-system-util-linux wipefs">
1364 <primary sortas="b-wipefs">wipefs</primary>
1365 </indexterm>
1366 </listitem>
1367 </varlistentry>
1368
1369 <varlistentry id="x86_64">
1370 <term><command>x86_64</command></term>
1371 <listitem>
1372 <para>A symbolic link to setarch</para>
1373 <indexterm zone="ch-system-util-linux x86_64">
1374 <primary sortas="b-x86_64">x86_64</primary>
1375 </indexterm>
1376 </listitem>
1377 </varlistentry>
1378
1379 <varlistentry id="zramctl">
1380 <term><command>zramctl</command></term>
1381 <listitem>
1382 <para>A program to set up and control zram (compressed ram disk)
1383 devices</para>
1384 <indexterm zone="ch-system-util-linux zramctl">
1385 <primary sortas="b-zramctl">zramctl</primary>
1386 </indexterm>
1387 </listitem>
1388 </varlistentry>
1389
1390 <varlistentry id="libblkid">
1391 <term><filename class="libraryfile">libblkid</filename></term>
1392 <listitem>
1393 <para>Contains routines for device identification and token
1394 extraction</para>
1395 <indexterm zone="ch-system-util-linux libblkid">
1396 <primary sortas="c-libblkid">libblkid</primary>
1397 </indexterm>
1398 </listitem>
1399 </varlistentry>
1400
1401 <varlistentry id="libfdisk">
1402 <term><filename class="libraryfile">libfdisk</filename></term>
1403 <listitem>
1404 <para>Contains routines for manipulating partition tables</para>
1405 <indexterm zone="ch-system-util-linux libfdisk">
1406 <primary sortas="c-libfdisk">libfdisk</primary>
1407 </indexterm>
1408 </listitem>
1409 </varlistentry>
1410
1411 <varlistentry id="libmount">
1412 <term><filename class="libraryfile">libmount</filename></term>
1413 <listitem>
1414 <para>Contains routines for block device mounting and
1415 unmounting</para>
1416 <indexterm zone="ch-system-util-linux libmount">
1417 <primary sortas="c-libmount">libmount</primary>
1418 </indexterm>
1419 </listitem>
1420 </varlistentry>
1421
1422 <varlistentry id="libsmartcols">
1423 <term><filename class="libraryfile">libsmartcols</filename></term>
1424 <listitem>
1425 <para>Contains routines for aiding screen output in tabular form</para>
1426 <indexterm zone="ch-system-util-linux libsmartcols">
1427 <primary sortas="c-libsmartcols">libsmartcols</primary>
1428 </indexterm>
1429 </listitem>
1430 </varlistentry>
1431
1432 <varlistentry id="libuuid">
1433 <term><filename class="libraryfile">libuuid</filename></term>
1434 <listitem>
1435 <para>Contains routines for generating unique identifiers for objects
1436 that may be accessible beyond the local system</para>
1437 <indexterm zone="ch-system-util-linux libuuid">
1438 <primary sortas="c-libuuid">libuuid</primary>
1439 </indexterm>
1440 </listitem>
1441 </varlistentry>
1442
1443 </variablelist>
1444
1445 </sect2>
1446
1447</sect1>
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