source: chapter08/util-linux.xml@ 5365c7a

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1<?xml version="1.0" encoding="UTF-8"?>
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<!--
46 <para>First, disable a problematic test:</para>
47
48 <screen><userinput remap="pre">sed -i '/test_mkfds/s/^/#/' tests/helpers/Makemodule.am</userinput></screen>
49-->
50 <para>Prepare Util-linux for compilation:</para>
51
52 <screen revision="sysv"><userinput remap="configure">./configure --bindir=/usr/bin \
53 --libdir=/usr/lib \
54 --runstatedir=/run \
55 --sbindir=/usr/sbin \
56 --disable-chfn-chsh \
57 --disable-login \
58 --disable-nologin \
59 --disable-su \
60 --disable-setpriv \
61 --disable-runuser \
62 --disable-pylibmount \
63 --disable-liblastlog2 \
64 --disable-static \
65 --without-python \
66 --without-systemd \
67 --without-systemdsystemunitdir \
68 ADJTIME_PATH=/var/lib/hwclock/adjtime \
69 --docdir=/usr/share/doc/util-linux-&util-linux-version;</userinput></screen>
70
71 <screen revision="systemd"><userinput remap="configure">./configure --bindir=/usr/bin \
72 --libdir=/usr/lib \
73 --runstatedir=/run \
74 --sbindir=/usr/sbin \
75 --disable-chfn-chsh \
76 --disable-login \
77 --disable-nologin \
78 --disable-su \
79 --disable-setpriv \
80 --disable-runuser \
81 --disable-pylibmount \
82 --disable-liblastlog2 \
83 --disable-static \
84 --without-python \
85 ADJTIME_PATH=/var/lib/hwclock/adjtime \
86 --docdir=/usr/share/doc/util-linux-&util-linux-version;</userinput></screen>
87
88 <para>The --disable and --without options prevent warnings about
89 building components that either require packages not in LFS, or are
90 inconsistent with programs installed by other packages.</para>
91
92 <para>Compile the package:</para>
93
94<screen><userinput remap="make">make</userinput></screen>
95
96 <!-- To editors:
97 Two tests need a /etc/fstab file. They are skipped if the host
98 distro isn't using systemd as the init system, so don't remove
99 the creation of /etc/fstab unless you've tested it with such a
100 host distro (for example LFS systemd or Debian). -->
101 <para>If desired, create a dummy <filename>/etc/fstab</filename> file
102 to satisfy two tests and run the test suite as a non-&root;
103 user:</para>
104
105 <warning><para>Running the test suite as the
106 <systemitem class="username">root</systemitem> user can be harmful to
107 your system. To run it, the CONFIG_SCSI_DEBUG option for the kernel must
108 be available in the currently running system and must be built as a
109 module. Building it into the kernel will prevent booting. For complete
110 coverage, other BLFS packages must be installed. If desired, this test can
111 be run by booting into the completed LFS system and running:</para>
112
113<screen role="nodump"><userinput>bash tests/run.sh --srcdir=$PWD --builddir=$PWD</userinput></screen>
114 </warning>
115
116<screen><userinput remap="test">touch /etc/fstab
117chown -R tester .
118su tester -c "make -k check"</userinput></screen>
119
120 <para>
121 The <emphasis>hardlink</emphasis> tests will fail if the host's kernel
122 does not have the option <option>CONFIG_CRYPTO_USER_API_HASH</option>
123 enabled or does not have any options providing a SHA256 implementation
124 (for example, <option>CONFIG_CRYPTO_SHA256</option>, or
125 <option>CONFIG_CRYPTO_SHA256_SSSE3</option> if the CPU supports
126 Supplemental SSE3) enabled. In addition, the lsfd: inotify test will
127 fail if the kernel option <option>CONFIG_NETLINK_DIAG</option> is not
128 enabled.
129 </para>
130
131 <para>Two tests named <filename>fadvise/drop</filename> and
132 <filename>fincore/count</filename> are known to fail if the page
133 size of the host kernel is not 4 KB.</para>
134
135 <para>Install the package:</para>
136
137<screen><userinput remap="install">make install</userinput></screen>
138<!--
139 <para>Finally, install the man pages:</para>
140
141<screen><userinput remap="install">tar -xf ../util-linux-man-pages-&util-linux-version;.tar.xz - -directory /usr/share/man - -strip-components=1</userinput></screen>
142-->
143 </sect2>
144
145 <sect2 id="contents-utillinux" role="content">
146 <title>Contents of Util-linux</title>
147
148 <segmentedlist>
149 <segtitle>Installed programs</segtitle>
150 <segtitle>Installed libraries</segtitle>
151 <segtitle>Installed directories</segtitle>
152
153 <seglistitem>
154 <seg>addpart, agetty, blkdiscard, blkid, blkzone, blockdev, cal, cfdisk, chcpu,
155 chmem, choom, chrt, col, colcrt, colrm, column, ctrlaltdel, delpart, dmesg,
156 eject, fallocate, fdisk, fincore, findfs, findmnt, flock, fsck,
157 fsck.cramfs, fsck.minix, fsfreeze, fstrim, getopt, hardlink, hexdump, hwclock,
158 ionice, ipcmk, ipcrm, ipcs, irqtop, isosize, kill, last,
159 lastb (link to last), ldattach, linux32 (link to setarch), linux64 (link to setarch),
160 logger, look, losetup, lsblk, lscpu, lsipc, lsirq, lsfd, lslocks, lslogins,
161 lsmem, lsns, mcookie, mesg, mips (link to setarch), mips32 (link
162 to setarch), mips64 (link to setarch), mkfs, mkfs.bfs, mkfs.cramfs,
163 mkfs.minix, mkswap,
164 more, mount, mountpoint, namei, nsenter, partx, pivot_root, prlimit,
165 readprofile, rename, renice, resizepart, rev, rfkill, rtcwake, script,
166 scriptlive, scriptreplay, setarch, setsid, setterm, sfdisk, sulogin, swaplabel,
167 swapoff, swapon, switch_root, taskset, uclampset, ul,
168 umount, uname26 (link to setarch), unshare, utmpdump, uuidd, uuidgen, uuidparse,
169 wall, wdctl, whereis, wipefs, and zramctl</seg>
170 <seg>libblkid.so, libfdisk.so, libmount.so,
171 libsmartcols.so, and libuuid.so</seg>
172 <seg>/usr/include/blkid,
173 /usr/include/libfdisk,
174 /usr/include/libmount,
175 /usr/include/libsmartcols,
176 /usr/include/uuid,
177 /usr/share/doc/util-linux-&util-linux-version;,
178 and /var/lib/hwclock</seg>
179 </seglistitem>
180 </segmentedlist>
181
182 <variablelist>
183 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
184 <?dbfo list-presentation="list"?>
185 <?dbhtml list-presentation="table"?>
186
187 <varlistentry id="addpart">
188 <term><command>addpart</command></term>
189 <listitem>
190 <para>Informs the Linux kernel of new partitions</para>
191 <indexterm zone="ch-system-util-linux addpart">
192 <primary sortas="b-addpart">addpart</primary>
193 </indexterm>
194 </listitem>
195 </varlistentry>
196
197 <varlistentry id="agetty">
198 <term><command>agetty</command></term>
199 <listitem>
200 <para>Opens a tty port, prompts for a login name,
201 and then invokes the <command>login</command> program</para>
202 <indexterm zone="ch-system-util-linux agetty">
203 <primary sortas="b-agetty">agetty</primary>
204 </indexterm>
205 </listitem>
206 </varlistentry>
207
208 <varlistentry id="blkdiscard">
209 <term><command>blkdiscard</command></term>
210 <listitem>
211 <para>Discards sectors on a device</para>
212 <indexterm zone="ch-system-util-linux blkdiscard">
213 <primary sortas="b-blkdiscard">blkdiscard</primary>
214 </indexterm>
215 </listitem>
216 </varlistentry>
217
218 <varlistentry id="blkid">
219 <term><command>blkid</command></term>
220 <listitem>
221 <para>A command line utility to locate and print block device
222 attributes</para>
223 <indexterm zone="ch-system-util-linux blkid">
224 <primary sortas="b-blkid">blkid</primary>
225 </indexterm>
226 </listitem>
227 </varlistentry>
228
229 <varlistentry id="blkzone">
230 <term><command>blkzone</command></term>
231 <listitem>
232 <para>Is used to manage zoned storage block devices</para>
233 <indexterm zone="ch-system-util-linux blkzone">
234 <primary sortas="b-blkzone">blkzone</primary>
235 </indexterm>
236 </listitem>
237 </varlistentry>
238
239 <varlistentry id="blockdev">
240 <term><command>blockdev</command></term>
241 <listitem>
242 <para>Allows users to call block device ioctls from the command
243 line</para>
244 <indexterm zone="ch-system-util-linux blockdev">
245 <primary sortas="b-blockdev">blockdev</primary>
246 </indexterm>
247 </listitem>
248 </varlistentry>
249
250 <varlistentry id="cal">
251 <term><command>cal</command></term>
252 <listitem>
253 <para>Displays a simple calendar</para>
254 <indexterm zone="ch-system-util-linux cal">
255 <primary sortas="b-cal">cal</primary>
256 </indexterm>
257 </listitem>
258 </varlistentry>
259
260 <varlistentry id="cfdisk">
261 <term><command>cfdisk</command></term>
262 <listitem>
263 <para>Manipulates the partition table of the given device</para>
264 <indexterm zone="ch-system-util-linux cfdisk">
265 <primary sortas="b-cfdisk">cfdisk</primary>
266 </indexterm>
267 </listitem>
268 </varlistentry>
269
270 <varlistentry id="chcpu">
271 <term><command>chcpu</command></term>
272 <listitem>
273 <para>Modifies the state of CPUs</para>
274 <indexterm zone="ch-system-util-linux chcpu">
275 <primary sortas="b-chcpu">chcpu</primary>
276 </indexterm>
277 </listitem>
278 </varlistentry>
279
280 <varlistentry id="chmem">
281 <term><command>chmem</command></term>
282 <listitem>
283 <para>Configures memory</para>
284 <indexterm zone="ch-system-util-linux chmem">
285 <primary sortas="b-chmem">chmem</primary>
286 </indexterm>
287 </listitem>
288 </varlistentry>
289
290 <varlistentry id="choom">
291 <term><command>choom</command></term>
292 <listitem>
293 <para>Displays and adjusts OOM-killer scores, used to determine
294 which process to kill first when Linux is Out Of Memory</para>
295 <indexterm zone="ch-system-util-linux choom">
296 <primary sortas="b-choom">choom</primary>
297 </indexterm>
298 </listitem>
299 </varlistentry>
300
301 <varlistentry id="chrt">
302 <term><command>chrt</command></term>
303 <listitem>
304 <para>Manipulates real-time attributes of a process</para>
305 <indexterm zone="ch-system-util-linux chrt">
306 <primary sortas="b-chrt">chrt</primary>
307 </indexterm>
308 </listitem>
309 </varlistentry>
310
311 <varlistentry id="col">
312 <term><command>col</command></term>
313 <listitem>
314 <para>Filters out reverse line feeds</para>
315 <indexterm zone="ch-system-util-linux col">
316 <primary sortas="b-col">col</primary>
317 </indexterm>
318 </listitem>
319 </varlistentry>
320
321 <varlistentry id="colcrt">
322 <term><command>colcrt</command></term>
323 <listitem>
324 <para>Filters <command>nroff</command> output for terminals
325 that lack some capabilities, such as overstriking and half-lines</para>
326 <indexterm zone="ch-system-util-linux colcrt">
327 <primary sortas="b-colcrt">colcrt</primary>
328 </indexterm>
329 </listitem>
330 </varlistentry>
331
332 <varlistentry id="colrm">
333 <term><command>colrm</command></term>
334 <listitem>
335 <para>Filters out the given columns</para>
336 <indexterm zone="ch-system-util-linux colrm">
337 <primary sortas="b-colrm">colrm</primary>
338 </indexterm>
339 </listitem>
340 </varlistentry>
341
342 <varlistentry id="column">
343 <term><command>column</command></term>
344 <listitem>
345 <para>Formats a given file into multiple columns</para>
346 <indexterm zone="ch-system-util-linux column">
347 <primary sortas="b-column">column</primary>
348 </indexterm>
349 </listitem>
350 </varlistentry>
351
352 <varlistentry id="ctrlaltdel">
353 <term><command>ctrlaltdel</command></term>
354 <listitem>
355 <para>Sets the function of the Ctrl+Alt+Del key combination to a
356 hard or a soft reset</para>
357 <indexterm zone="ch-system-util-linux ctrlaltdel">
358 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
359 </indexterm>
360 </listitem>
361 </varlistentry>
362
363 <varlistentry id="delpart">
364 <term><command>delpart</command></term>
365 <listitem>
366 <para>Asks the Linux kernel to remove a partition</para>
367 <indexterm zone="ch-system-util-linux delpart">
368 <primary sortas="b-delpart">delpart</primary>
369 </indexterm>
370 </listitem>
371 </varlistentry>
372
373 <varlistentry id="dmesg">
374 <term><command>dmesg</command></term>
375 <listitem>
376 <para>Dumps the kernel boot messages</para>
377 <indexterm zone="ch-system-util-linux dmesg">
378 <primary sortas="b-dmesg">dmesg</primary>
379 </indexterm>
380 </listitem>
381 </varlistentry>
382
383 <varlistentry id="eject">
384 <term><command>eject</command></term>
385 <listitem>
386 <para>Ejects removable media</para>
387 <indexterm zone="ch-system-util-linux eject">
388 <primary sortas="b-eject">eject</primary>
389 </indexterm>
390 </listitem>
391 </varlistentry>
392
393 <varlistentry id="fallocate">
394 <term><command>fallocate</command></term>
395 <listitem>
396 <para>Preallocates space to a file</para>
397 <indexterm zone="ch-system-util-linux fallocate">
398 <primary sortas="b-fallocate">fallocate</primary>
399 </indexterm>
400 </listitem>
401 </varlistentry>
402
403 <varlistentry id="fdisk">
404 <term><command>fdisk</command></term>
405 <listitem>
406 <para>Manipulates the partition table of the given device</para>
407 <indexterm zone="ch-system-util-linux fdisk">
408 <primary sortas="b-fdisk">fdisk</primary>
409 </indexterm>
410 </listitem>
411 </varlistentry>
412
413 <varlistentry id="fincore">
414 <term><command>fincore</command></term>
415 <listitem>
416 <para>Counts pages of file contents in core</para>
417 <indexterm zone="ch-system-util-linux fincore">
418 <primary sortas="b-fincore">fincore</primary>
419 </indexterm>
420 </listitem>
421 </varlistentry>
422
423 <varlistentry id="findfs">
424 <term><command>findfs</command></term>
425 <listitem>
426 <para>Finds a file system, either by label or Universally Unique Identifier
427 (UUID)</para>
428 <indexterm zone="ch-system-util-linux findfs">
429 <primary sortas="b-findfs">findfs</primary>
430 </indexterm>
431 </listitem>
432 </varlistentry>
433
434 <varlistentry id="findmnt">
435 <term><command>findmnt</command></term>
436 <listitem>
437 <para>Is a command line interface to the libmount library
438 for working with mountinfo, fstab and mtab files</para>
439 <indexterm zone="ch-system-util-linux findmnt">
440 <primary sortas="b-findmnt">findmnt</primary>
441 </indexterm>
442 </listitem>
443 </varlistentry>
444
445 <varlistentry id="flock">
446 <term><command>flock</command></term>
447 <listitem>
448 <para>Acquires a file lock and then executes a command with the lock
449 held</para>
450 <indexterm zone="ch-system-util-linux flock">
451 <primary sortas="b-flock">flock</primary>
452 </indexterm>
453 </listitem>
454 </varlistentry>
455
456 <varlistentry id="fsck">
457 <term><command>fsck</command></term>
458 <listitem>
459 <para>Is used to check, and optionally repair, file systems</para>
460 <indexterm zone="ch-system-util-linux fsck">
461 <primary sortas="b-fsck">fsck</primary>
462 </indexterm>
463 </listitem>
464 </varlistentry>
465
466 <varlistentry id="fsck.cramfs">
467 <term><command>fsck.cramfs</command></term>
468 <listitem>
469 <para>Performs a consistency check on the Cramfs file system on the
470 given device</para>
471 <indexterm zone="ch-system-util-linux fsck.cramfs">
472 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
473 </indexterm>
474 </listitem>
475 </varlistentry>
476
477 <varlistentry id="fsck.minix">
478 <term><command>fsck.minix</command></term>
479 <listitem>
480 <para>Performs a consistency check on the Minix file system on the
481 given device</para>
482 <indexterm zone="ch-system-util-linux fsck.minix">
483 <primary sortas="b-fsck.minix">fsck.minix</primary>
484 </indexterm>
485 </listitem>
486 </varlistentry>
487
488 <varlistentry id="fsfreeze">
489 <term><command>fsfreeze</command></term>
490 <listitem>
491 <para>Is a very simple wrapper around FIFREEZE/FITHAW ioctl
492 kernel driver operations</para>
493 <indexterm zone="ch-system-util-linux fsfreeze">
494 <primary sortas="b-fsfreeze">fsfreeze</primary>
495 </indexterm>
496 </listitem>
497 </varlistentry>
498
499 <varlistentry id="fstrim">
500 <term><command>fstrim</command></term>
501 <listitem>
502 <para>Discards unused blocks on a mounted filesystem</para>
503 <indexterm zone="ch-system-util-linux fstrim">
504 <primary sortas="b-fstrim">fstrim</primary>
505 </indexterm>
506 </listitem>
507 </varlistentry>
508
509 <varlistentry id="getopt">
510 <term><command>getopt</command></term>
511 <listitem>
512 <para>Parses options in the given command line</para>
513 <indexterm zone="ch-system-util-linux getopt">
514 <primary sortas="b-getopt">getopt</primary>
515 </indexterm>
516 </listitem>
517 </varlistentry>
518
519 <varlistentry id="hardlink">
520 <term><command>hardlink</command></term>
521 <listitem>
522 <para>Consolidates duplicate files by creating hard links</para>
523 <indexterm zone="ch-system-util-linux hardlink">
524 <primary sortas="b-hardlink">hardlink</primary>
525 </indexterm>
526 </listitem>
527 </varlistentry>
528
529 <varlistentry id="hexdump">
530 <term><command>hexdump</command></term>
531 <listitem>
532 <para>Dumps the given file in hexadecimal, decimal, octal,
533 or ascii</para>
534 <indexterm zone="ch-system-util-linux hexdump">
535 <primary sortas="b-hexdump">hexdump</primary>
536 </indexterm>
537 </listitem>
538 </varlistentry>
539
540 <varlistentry id="hwclock">
541 <term><command>hwclock</command></term>
542 <listitem>
543 <para>Reads or sets the system's hardware clock, also called
544 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
545 clock</para>
546 <indexterm zone="ch-system-util-linux hwclock">
547 <primary sortas="b-hwclock">hwclock</primary>
548 </indexterm>
549 </listitem>
550 </varlistentry>
551
552 <varlistentry id="ionice">
553 <term><command>ionice</command></term>
554 <listitem>
555 <para>Gets or sets the io scheduling class and priority for a program</para>
556 <indexterm zone="ch-system-util-linux ionice">
557 <primary sortas="b-ionice">ionice</primary>
558 </indexterm>
559 </listitem>
560 </varlistentry>
561
562 <varlistentry id="ipcmk">
563 <term><command>ipcmk</command></term>
564 <listitem>
565 <para>Creates various IPC resources</para>
566 <indexterm zone="ch-system-util-linux ipcmk">
567 <primary sortas="b-ipcmk">ipcmk</primary>
568 </indexterm>
569 </listitem>
570 </varlistentry>
571
572 <varlistentry id="ipcrm">
573 <term><command>ipcrm</command></term>
574 <listitem>
575 <para>Removes the given Inter-Process Communication (IPC) resource</para>
576 <indexterm zone="ch-system-util-linux ipcrm">
577 <primary sortas="b-ipcrm">ipcrm</primary>
578 </indexterm>
579 </listitem>
580 </varlistentry>
581
582 <varlistentry id="ipcs">
583 <term><command>ipcs</command></term>
584 <listitem>
585 <para>Provides IPC status information</para>
586 <indexterm zone="ch-system-util-linux ipcs">
587 <primary sortas="b-ipcs">ipcs</primary>
588 </indexterm>
589 </listitem>
590 </varlistentry>
591
592 <varlistentry id="irqtop">
593 <term><command>irqtop</command></term>
594 <listitem>
595 <para>Displays kernel interrupt counter information in
596 <ulink role='man' url='&man;top.1'>top(1)</ulink> style
597 view</para>
598 <indexterm zone="ch-system-util-linux irqtop">
599 <primary sortas="b-irqtop">irqtop</primary>
600 </indexterm>
601 </listitem>
602 </varlistentry>
603
604 <varlistentry id="isosize">
605 <term><command>isosize</command></term>
606 <listitem>
607 <para>Reports the size of an iso9660 file system</para>
608 <indexterm zone="ch-system-util-linux isosize">
609 <primary sortas="b-isosize">isosize</primary>
610 </indexterm>
611 </listitem>
612 </varlistentry>
613
614 <varlistentry id="kill">
615 <term><command>kill</command></term>
616 <listitem>
617 <para>Sends signals to processes</para>
618 <indexterm zone="ch-system-util-linux kill">
619 <primary sortas="b-kill">kill</primary>
620 </indexterm>
621 </listitem>
622 </varlistentry>
623
624 <varlistentry id="last">
625 <term><command>last</command></term>
626 <listitem>
627 <para>Shows which users last logged in (and out), searching back
628 through the <filename>/var/log/wtmp</filename> file; it also shows
629 system boots, shutdowns, and run-level changes</para>
630 <indexterm zone="ch-system-util-linux last">
631 <primary sortas="b-last">last</primary>
632 </indexterm>
633 </listitem>
634 </varlistentry>
635
636 <varlistentry id="lastb">
637 <term><command>lastb</command></term>
638 <listitem>
639 <para>Shows the failed login attempts, as logged in
640 <filename>/var/log/btmp</filename></para>
641 <indexterm zone="ch-system-util-linux lastb">
642 <primary sortas="b-lastb">lastb</primary>
643 </indexterm>
644 </listitem>
645 </varlistentry>
646
647 <varlistentry id="ldattach">
648 <term><command>ldattach</command></term>
649 <listitem>
650 <para>Attaches a line discipline to a serial line</para>
651 <indexterm zone="ch-system-util-linux ldattach">
652 <primary sortas="b-ldattach">ldattach</primary>
653 </indexterm>
654 </listitem>
655 </varlistentry>
656
657 <varlistentry id="linux32">
658 <term><command>linux32</command></term>
659 <listitem>
660 <para>A symbolic link to setarch</para>
661 <indexterm zone="ch-system-util-linux linux32">
662 <primary sortas="b-linux32">linux32</primary>
663 </indexterm>
664 </listitem>
665 </varlistentry>
666
667 <varlistentry id="linux64">
668 <term><command>linux64</command></term>
669 <listitem>
670 <para>A symbolic link to setarch</para>
671 <indexterm zone="ch-system-util-linux linux64">
672 <primary sortas="b-linux64">linux64</primary>
673 </indexterm>
674 </listitem>
675 </varlistentry>
676
677 <varlistentry id="logger">
678 <term><command>logger</command></term>
679 <listitem>
680 <para>Enters the given message into the system log</para>
681 <indexterm zone="ch-system-util-linux logger">
682 <primary sortas="b-logger">logger</primary>
683 </indexterm>
684 </listitem>
685 </varlistentry>
686
687 <varlistentry id="look">
688 <term><command>look</command></term>
689 <listitem>
690 <para>Displays lines that begin with the given string</para>
691 <indexterm zone="ch-system-util-linux look">
692 <primary sortas="b-look">look</primary>
693 </indexterm>
694 </listitem>
695 </varlistentry>
696
697 <varlistentry id="losetup">
698 <term><command>losetup</command></term>
699 <listitem>
700 <para>Sets up and controls loop devices</para>
701 <indexterm zone="ch-system-util-linux losetup">
702 <primary sortas="b-losetup">losetup</primary>
703 </indexterm>
704 </listitem>
705 </varlistentry>
706
707 <varlistentry id="lsblk">
708 <term><command>lsblk</command></term>
709 <listitem>
710 <para>Lists information about all or selected block devices in
711 a tree-like format</para>
712 <indexterm zone="ch-system-util-linux lsblk">
713 <primary sortas="b-lsblk">lsblk</primary>
714 </indexterm>
715 </listitem>
716 </varlistentry>
717
718 <varlistentry id="lscpu">
719 <term><command>lscpu</command></term>
720 <listitem>
721 <para>Prints CPU architecture information</para>
722 <indexterm zone="ch-system-util-linux lscpu">
723 <primary sortas="b-lscpu">lscpu</primary>
724 </indexterm>
725 </listitem>
726 </varlistentry>
727
728 <varlistentry id="lsfd">
729 <term><command>lsfd</command></term>
730 <listitem>
731 <para>Displays information about open files; replaces <command>lsof</command></para>
732 <indexterm zone="ch-system-util-linux lsfd">
733 <primary sortas="b-lsfd">lsfd</primary>
734 </indexterm>
735 </listitem>
736 </varlistentry>
737
738 <varlistentry id="lsipc">
739 <term><command>lsipc</command></term>
740 <listitem>
741 <para>Prints information on IPC facilities currently employed
742 in the system</para>
743 <indexterm zone="ch-system-util-linux lsipc">
744 <primary sortas="b-lsipc">lsipc</primary>
745 </indexterm>
746 </listitem>
747 </varlistentry>
748
749 <varlistentry id="lsirq">
750 <term><command>lsirq</command></term>
751 <listitem>
752 <para>Displays kernel interrupt counter information</para>
753 <indexterm zone="ch-system-util-linux lsirq">
754 <primary sortas="b-lsirq">lsirq</primary>
755 </indexterm>
756 </listitem>
757 </varlistentry>
758
759 <varlistentry id="lslocks">
760 <term><command>lslocks</command></term>
761 <listitem>
762 <para>Lists local system locks</para>
763 <indexterm zone="ch-system-util-linux lslocks">
764 <primary sortas="b-lslocks">lslocks</primary>
765 </indexterm>
766 </listitem>
767 </varlistentry>
768
769 <varlistentry id="lslogins">
770 <term><command>lslogins</command></term>
771 <listitem>
772 <para>Lists information about users, groups and system accounts</para>
773 <indexterm zone="ch-system-util-linux lslogins">
774 <primary sortas="b-lslogins">lslogins</primary>
775 </indexterm>
776 </listitem>
777 </varlistentry>
778
779 <varlistentry id="lsmem">
780 <term><command>lsmem</command></term>
781 <listitem>
782 <para>Lists the ranges of available memory with their online
783 status</para>
784 <indexterm zone="ch-system-util-linux lsmem">
785 <primary sortas="b-lsmem">lsmem</primary>
786 </indexterm>
787 </listitem>
788 </varlistentry>
789
790 <varlistentry id="lsns">
791 <term><command>lsns</command></term>
792 <listitem>
793 <para>Lists namespaces</para>
794 <indexterm zone="ch-system-util-linux lsns">
795 <primary sortas="b-lsns">lsns</primary>
796 </indexterm>
797 </listitem>
798 </varlistentry>
799
800 <varlistentry id="mcookie">
801 <term><command>mcookie</command></term>
802 <listitem>
803 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
804 <command>xauth</command></para>
805 <indexterm zone="ch-system-util-linux mcookie">
806 <primary sortas="b-mcookie">mcookie</primary>
807 </indexterm>
808 </listitem>
809 </varlistentry>
810
811 <varlistentry id="mesg">
812 <term><command>mesg</command></term>
813 <listitem>
814 <para>Controls whether other users can send messages to the current
815 user's terminal</para>
816 <indexterm zone="ch-system-util-linux mesg">
817 <primary sortas="b-mesg">mesg</primary>
818 </indexterm>
819 </listitem>
820 </varlistentry>
821
822 <varlistentry id="mips">
823 <term><command>mips</command></term>
824 <listitem>
825 <para>A symbolic link to setarch</para>
826 <indexterm zone="ch-system-util-linux mips">
827 <primary sortas="b-mips">mips</primary>
828 </indexterm>
829 </listitem>
830 </varlistentry>
831
832 <varlistentry id="mips32">
833 <term><command>mips32</command></term>
834 <listitem>
835 <para>A symbolic link to setarch</para>
836 <indexterm zone="ch-system-util-linux mips32">
837 <primary sortas="b-mips32">mips32</primary>
838 </indexterm>
839 </listitem>
840 </varlistentry>
841
842 <varlistentry id="mips64">
843 <term><command>mips64</command></term>
844 <listitem>
845 <para>A symbolic link to setarch</para>
846 <indexterm zone="ch-system-util-linux mips64">
847 <primary sortas="b-mips64">mips64</primary>
848 </indexterm>
849 </listitem>
850 </varlistentry>
851
852 <varlistentry id="mkfs">
853 <term><command>mkfs</command></term>
854 <listitem>
855 <para>Builds a file system on a device (usually a hard disk
856 partition)</para>
857 <indexterm zone="ch-system-util-linux mkfs">
858 <primary sortas="b-mkfs">mkfs</primary>
859 </indexterm>
860 </listitem>
861 </varlistentry>
862
863 <varlistentry id="mkfs.bfs">
864 <term><command>mkfs.bfs</command></term>
865 <listitem>
866 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
867 <indexterm zone="ch-system-util-linux mkfs.bfs">
868 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
869 </indexterm>
870 </listitem>
871 </varlistentry>
872
873 <varlistentry id="mkfs.cramfs">
874 <term><command>mkfs.cramfs</command></term>
875 <listitem>
876 <para>Creates a cramfs file system</para>
877 <indexterm zone="ch-system-util-linux mkfs.cramfs">
878 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
879 </indexterm>
880 </listitem>
881 </varlistentry>
882
883 <varlistentry id="mkfs.minix">
884 <term><command>mkfs.minix</command></term>
885 <listitem>
886 <para>Creates a Minix file system</para>
887 <indexterm zone="ch-system-util-linux mkfs.minix">
888 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
889 </indexterm>
890 </listitem>
891 </varlistentry>
892
893 <varlistentry id="mkswap">
894 <term><command>mkswap</command></term>
895 <listitem>
896 <para>Initializes the given device or file to be used as a swap
897 area</para>
898 <indexterm zone="ch-system-util-linux mkswap">
899 <primary sortas="b-mkswap">mkswap</primary>
900 </indexterm>
901 </listitem>
902 </varlistentry>
903
904 <varlistentry id="more">
905 <term><command>more</command></term>
906 <listitem>
907 <para>A filter for paging through text one screen at a time</para>
908 <indexterm zone="ch-system-util-linux more">
909 <primary sortas="b-more">more</primary>
910 </indexterm>
911 </listitem>
912 </varlistentry>
913
914 <varlistentry id="mount">
915 <term><command>mount</command></term>
916 <listitem>
917 <para>Attaches the file system on the given device to a specified
918 directory in the file-system tree</para>
919 <indexterm zone="ch-system-util-linux mount">
920 <primary sortas="b-mount">mount</primary>
921 </indexterm>
922 </listitem>
923 </varlistentry>
924
925 <varlistentry id="mountpoint">
926 <term><command>mountpoint</command></term>
927 <listitem>
928 <para>Checks if the directory is a mountpoint</para>
929 <indexterm zone="ch-system-util-linux mountpoint">
930 <primary sortas="b-mountpoint">mountpoint</primary>
931 </indexterm>
932 </listitem>
933 </varlistentry>
934
935 <varlistentry id="namei">
936 <term><command>namei</command></term>
937 <listitem>
938 <para>Shows the symbolic links in the given paths</para>
939 <indexterm zone="ch-system-util-linux namei">
940 <primary sortas="b-namei">namei</primary>
941 </indexterm>
942 </listitem>
943 </varlistentry>
944
945 <varlistentry id="nsenter">
946 <term><command>nsenter</command></term>
947 <listitem>
948 <para>Runs a program with namespaces of other processes</para>
949 <indexterm zone="ch-system-util-linux nsenter">
950 <primary sortas="b-nsenter">nsenter</primary>
951 </indexterm>
952 </listitem>
953 </varlistentry>
954
955 <varlistentry id="partx">
956 <term><command>partx</command></term>
957 <listitem>
958 <para>Tells the kernel about the presence and numbering of on-disk
959 partitions</para>
960 <indexterm zone="ch-system-util-linux partx">
961 <primary sortas="b-partx">partx</primary>
962 </indexterm>
963 </listitem>
964 </varlistentry>
965
966 <varlistentry id="pivot_root">
967 <term><command>pivot_root</command></term>
968 <listitem>
969 <para>Makes the given file system the new root file system of the
970 current process</para>
971 <indexterm zone="ch-system-util-linux pivot_root">
972 <primary sortas="b-pivot_root">pivot_root</primary>
973 </indexterm>
974 </listitem>
975 </varlistentry>
976
977 <varlistentry id="prlimit">
978 <term><command>prlimit</command></term>
979 <listitem>
980 <para>Gets and sets a process's resource limits</para>
981 <indexterm zone="ch-system-util-linux prlimit">
982 <primary sortas="b-prlimit">prlimit</primary>
983 </indexterm>
984 </listitem>
985 </varlistentry>
986
987 <varlistentry id="readprofile">
988 <term><command>readprofile</command></term>
989 <listitem>
990 <para>Reads kernel profiling information</para>
991 <indexterm zone="ch-system-util-linux readprofile">
992 <primary sortas="b-readprofile">readprofile</primary>
993 </indexterm>
994 </listitem>
995 </varlistentry>
996
997 <varlistentry id="rename">
998 <term><command>rename</command></term>
999 <listitem>
1000 <para>Renames the given files, replacing a given string with
1001 another</para>
1002 <indexterm zone="ch-system-util-linux rename">
1003 <primary sortas="b-rename">rename</primary>
1004 </indexterm>
1005 </listitem>
1006 </varlistentry>
1007
1008 <varlistentry id="renice">
1009 <term><command>renice</command></term>
1010 <listitem>
1011 <para>Alters the priority of running processes</para>
1012 <indexterm zone="ch-system-util-linux renice">
1013 <primary sortas="b-renice">renice</primary>
1014 </indexterm>
1015 </listitem>
1016 </varlistentry>
1017
1018 <varlistentry id="resizepart">
1019 <term><command>resizepart</command></term>
1020 <listitem>
1021 <para>Asks the Linux kernel to resize a partition</para>
1022 <indexterm zone="ch-system-util-linux resizepart">
1023 <primary sortas="b-resizepart">resizepart</primary>
1024 </indexterm>
1025 </listitem>
1026 </varlistentry>
1027
1028 <varlistentry id="rev">
1029 <term><command>rev</command></term>
1030 <listitem>
1031 <para>Reverses the lines of a given file</para>
1032 <indexterm zone="ch-system-util-linux rev">
1033 <primary sortas="b-rev">rev</primary>
1034 </indexterm>
1035 </listitem>
1036 </varlistentry>
1037
1038 <varlistentry id="rfkill">
1039 <term><command>rfkill</command></term>
1040 <listitem>
1041 <para>Tool for enabling and disabling wireless devices</para>
1042 <indexterm zone="ch-system-util-linux rfkill">
1043 <primary sortas="b-rfkill">rfkill</primary>
1044 </indexterm>
1045 </listitem>
1046 </varlistentry>
1047
1048 <varlistentry id="rtcwake">
1049 <term><command>rtcwake</command></term>
1050 <listitem>
1051 <para>Used to enter a system sleep state until the specified wakeup
1052 time</para>
1053 <indexterm zone="ch-system-util-linux rtcwake">
1054 <primary sortas="b-rtcwake">rtcwake</primary>
1055 </indexterm>
1056 </listitem>
1057 </varlistentry>
1058
1059 <varlistentry id="script">
1060 <term><command>script</command></term>
1061 <listitem>
1062 <para>Makes a typescript of a terminal session</para>
1063 <indexterm zone="ch-system-util-linux script">
1064 <primary sortas="b-script">script</primary>
1065 </indexterm>
1066 </listitem>
1067 </varlistentry>
1068
1069 <varlistentry id="scriptlive">
1070 <term><command>scriptlive</command></term>
1071 <listitem>
1072 <para>Re-runs session typescripts using timing information</para>
1073 <indexterm zone="ch-system-util-linux scriptlive">
1074 <primary sortas="b-scriptlive">scriptlive</primary>
1075 </indexterm>
1076 </listitem>
1077 </varlistentry>
1078
1079 <varlistentry id="scriptreplay">
1080 <term><command>scriptreplay</command></term>
1081 <listitem>
1082 <para>Plays back typescripts using timing information</para>
1083 <indexterm zone="ch-system-util-linux scriptreplay">
1084 <primary sortas="b-scriptreplay">scriptreplay</primary>
1085 </indexterm>
1086 </listitem>
1087 </varlistentry>
1088
1089 <varlistentry id="setarch">
1090 <term><command>setarch</command></term>
1091 <listitem>
1092 <para>Changes reported architecture in a new program environment, and
1093 sets personality flags</para>
1094 <indexterm zone="ch-system-util-linux setarch">
1095 <primary sortas="b-setarch">setarch</primary>
1096 </indexterm>
1097 </listitem>
1098 </varlistentry>
1099
1100 <varlistentry id="setsid">
1101 <term><command>setsid</command></term>
1102 <listitem>
1103 <para>Runs the given program in a new session</para>
1104 <indexterm zone="ch-system-util-linux setsid">
1105 <primary sortas="b-setsid">setsid</primary>
1106 </indexterm>
1107 </listitem>
1108 </varlistentry>
1109
1110 <varlistentry id="setterm">
1111 <term><command>setterm</command></term>
1112 <listitem>
1113 <para>Sets terminal attributes</para>
1114 <indexterm zone="ch-system-util-linux setterm">
1115 <primary sortas="b-setterm">setterm</primary>
1116 </indexterm>
1117 </listitem>
1118 </varlistentry>
1119
1120 <varlistentry id="sfdisk">
1121 <term><command>sfdisk</command></term>
1122 <listitem>
1123 <para>A disk partition table manipulator</para>
1124 <indexterm zone="ch-system-util-linux sfdisk">
1125 <primary sortas="b-sfdisk">sfdisk</primary>
1126 </indexterm>
1127 </listitem>
1128 </varlistentry>
1129
1130 <varlistentry id="sulogin">
1131 <term><command>sulogin</command></term>
1132 <listitem>
1133 <para>Allows <systemitem class="username">root</systemitem> to log in;
1134 it is normally invoked by <command>init</command> when the system goes
1135 into single user mode</para>
1136 <indexterm zone="ch-system-util-linux sulogin">
1137 <primary sortas="b-sulogin">sulogin</primary>
1138 </indexterm>
1139 </listitem>
1140 </varlistentry>
1141
1142 <varlistentry id="swaplabel">
1143 <term><command>swaplabel</command></term>
1144 <listitem>
1145 <para>Makes changes to the swap area's UUID and label</para>
1146 <indexterm zone="ch-system-util-linux swaplabel">
1147 <primary sortas="b-swaplabel">swaplabel</primary>
1148 </indexterm>
1149 </listitem>
1150 </varlistentry>
1151
1152 <varlistentry id="swapoff">
1153 <term><command>swapoff</command></term>
1154 <listitem>
1155 <para>Disables devices and files for paging and swapping</para>
1156 <indexterm zone="ch-system-util-linux swapoff">
1157 <primary sortas="b-swapoff">swapoff</primary>
1158 </indexterm>
1159 </listitem>
1160 </varlistentry>
1161
1162 <varlistentry id="swapon">
1163 <term><command>swapon</command></term>
1164 <listitem>
1165 <para>Enables devices and files for paging and swapping, and
1166 lists the devices and files currently in use</para>
1167 <indexterm zone="ch-system-util-linux swapon">
1168 <primary sortas="b-swapon">swapon</primary>
1169 </indexterm>
1170 </listitem>
1171 </varlistentry>
1172
1173 <varlistentry id="switch_root">
1174 <term><command>switch_root</command></term>
1175 <listitem>
1176 <para>Switches to another filesystem as the root of the mount tree</para>
1177 <indexterm zone="ch-system-util-linux switch_root">
1178 <primary sortas="b-switch_root">switch_root</primary>
1179 </indexterm>
1180 </listitem>
1181 </varlistentry>
1182
1183 <varlistentry id="taskset">
1184 <term><command>taskset</command></term>
1185 <listitem>
1186 <para>Retrieves or sets a process's CPU affinity</para>
1187 <indexterm zone="ch-system-util-linux taskset">
1188 <primary sortas="b-taskset">taskset</primary>
1189 </indexterm>
1190 </listitem>
1191 </varlistentry>
1192
1193 <varlistentry id="uclampset">
1194 <term><command>uclampset</command></term>
1195 <listitem>
1196 <para>Manipulates the utilization clamping attributes of the
1197 system or a process</para>
1198 <indexterm zone="ch-system-util-linux uclampset">
1199 <primary sortas="b-uclampset">uclampset</primary>
1200 </indexterm>
1201 </listitem>
1202 </varlistentry>
1203
1204 <varlistentry id="ul">
1205 <term><command>ul</command></term>
1206 <listitem>
1207 <para>A filter for translating underscores into escape sequences
1208 indicating underlining for the terminal in use</para>
1209 <indexterm zone="ch-system-util-linux ul">
1210 <primary sortas="b-ul">ul</primary>
1211 </indexterm>
1212 </listitem>
1213 </varlistentry>
1214
1215 <varlistentry id="umount">
1216 <term><command>umount</command></term>
1217 <listitem>
1218 <para>Disconnects a file system from the system's file tree</para>
1219 <indexterm zone="ch-system-util-linux umount">
1220 <primary sortas="b-umount">umount</primary>
1221 </indexterm>
1222 </listitem>
1223 </varlistentry>
1224
1225 <varlistentry id="uname26">
1226 <term><command>uname26</command></term>
1227 <listitem>
1228 <para>A symbolic link to setarch</para>
1229 <indexterm zone="ch-system-util-linux uname26">
1230 <primary sortas="b-uname26">uname26</primary>
1231 </indexterm>
1232 </listitem>
1233 </varlistentry>
1234
1235 <varlistentry id="unshare">
1236 <term><command>unshare</command></term>
1237 <listitem>
1238 <para>Runs a program with some namespaces unshared from parent</para>
1239 <indexterm zone="ch-system-util-linux unshare">
1240 <primary sortas="b-unshare">unshare</primary>
1241 </indexterm>
1242 </listitem>
1243 </varlistentry>
1244
1245 <varlistentry id="utmpdump">
1246 <term><command>utmpdump</command></term>
1247 <listitem>
1248 <para>Displays the content of the given login file in a
1249 user-friendly format</para>
1250 <indexterm zone="ch-system-util-linux utmpdump">
1251 <primary sortas="b-utmpdump">utmpdump</primary>
1252 </indexterm>
1253 </listitem>
1254 </varlistentry>
1255
1256 <varlistentry id="uuidd">
1257 <term><command>uuidd</command></term>
1258 <listitem>
1259 <para>A daemon used by the UUID library to generate time-based
1260 UUIDs in a secure and guaranteed-unique fashion</para>
1261 <indexterm zone="ch-system-util-linux uuidd">
1262 <primary sortas="b-uuidd">uuidd</primary>
1263 </indexterm>
1264 </listitem>
1265 </varlistentry>
1266
1267 <varlistentry id="uuidgen">
1268 <term><command>uuidgen</command></term>
1269 <listitem>
1270 <para>Creates new UUIDs. Each new UUID is a random number likely to be
1271 unique among all UUIDs created, on the local system and on other
1272 systems, in the past and in the future, with extremely high
1273 probability (2<superscript>128</superscript> UUIDs are
1274 possible)</para>
1275 <indexterm zone="ch-system-util-linux uuidgen">
1276 <primary sortas="b-uuidgen">uuidgen</primary>
1277 </indexterm>
1278 </listitem>
1279 </varlistentry>
1280
1281 <varlistentry id="uuidparse">
1282 <term><command>uuidparse</command></term>
1283 <listitem>
1284 <para>A utility to parse unique identifiers</para>
1285 <indexterm zone="ch-system-util-linux uuidparse">
1286 <primary sortas="b-uuidparse">uuidparse</primary>
1287 </indexterm>
1288 </listitem>
1289 </varlistentry>
1290
1291 <varlistentry id="wall">
1292 <term><command>wall</command></term>
1293 <listitem>
1294 <para>Displays the contents of a file or, by default, its standard
1295 input, on the terminals of all currently logged in users</para>
1296 <indexterm zone="ch-system-util-linux wall">
1297 <primary sortas="b-wall">wall</primary>
1298 </indexterm>
1299 </listitem>
1300 </varlistentry>
1301
1302 <varlistentry id="wdctl">
1303 <term><command>wdctl</command></term>
1304 <listitem>
1305 <para>Shows hardware watchdog status</para>
1306 <indexterm zone="ch-system-util-linux wdctl">
1307 <primary sortas="b-wdctl">wdctl</primary>
1308 </indexterm>
1309 </listitem>
1310 </varlistentry>
1311
1312 <varlistentry id="whereis">
1313 <term><command>whereis</command></term>
1314 <listitem>
1315 <para>Reports the location of the binary, source, and man page
1316 files for the given command</para>
1317 <indexterm zone="ch-system-util-linux whereis">
1318 <primary sortas="b-whereis">whereis</primary>
1319 </indexterm>
1320 </listitem>
1321 </varlistentry>
1322
1323 <varlistentry id="wipefs">
1324 <term><command>wipefs</command></term>
1325 <listitem>
1326 <para>Wipes a filesystem signature from a device</para>
1327 <indexterm zone="ch-system-util-linux wipefs">
1328 <primary sortas="b-wipefs">wipefs</primary>
1329 </indexterm>
1330 </listitem>
1331 </varlistentry>
1332
1333 <varlistentry id="zramctl">
1334 <term><command>zramctl</command></term>
1335 <listitem>
1336 <para>A program to set up and control zram (compressed ram disk)
1337 devices</para>
1338 <indexterm zone="ch-system-util-linux zramctl">
1339 <primary sortas="b-zramctl">zramctl</primary>
1340 </indexterm>
1341 </listitem>
1342 </varlistentry>
1343
1344 <varlistentry id="libblkid">
1345 <term><filename class="libraryfile">libblkid</filename></term>
1346 <listitem>
1347 <para>Contains routines for device identification and token
1348 extraction</para>
1349 <indexterm zone="ch-system-util-linux libblkid">
1350 <primary sortas="c-libblkid">libblkid</primary>
1351 </indexterm>
1352 </listitem>
1353 </varlistentry>
1354
1355 <varlistentry id="libfdisk">
1356 <term><filename class="libraryfile">libfdisk</filename></term>
1357 <listitem>
1358 <para>Contains routines for manipulating partition tables</para>
1359 <indexterm zone="ch-system-util-linux libfdisk">
1360 <primary sortas="c-libfdisk">libfdisk</primary>
1361 </indexterm>
1362 </listitem>
1363 </varlistentry>
1364
1365 <varlistentry id="libmount">
1366 <term><filename class="libraryfile">libmount</filename></term>
1367 <listitem>
1368 <para>Contains routines for block device mounting and
1369 unmounting</para>
1370 <indexterm zone="ch-system-util-linux libmount">
1371 <primary sortas="c-libmount">libmount</primary>
1372 </indexterm>
1373 </listitem>
1374 </varlistentry>
1375
1376 <varlistentry id="libsmartcols">
1377 <term><filename class="libraryfile">libsmartcols</filename></term>
1378 <listitem>
1379 <para>Contains routines for aiding screen output in tabular form</para>
1380 <indexterm zone="ch-system-util-linux libsmartcols">
1381 <primary sortas="c-libsmartcols">libsmartcols</primary>
1382 </indexterm>
1383 </listitem>
1384 </varlistentry>
1385
1386 <varlistentry id="libuuid">
1387 <term><filename class="libraryfile">libuuid</filename></term>
1388 <listitem>
1389 <para>Contains routines for generating unique identifiers for objects
1390 that may be accessible beyond the local system</para>
1391 <indexterm zone="ch-system-util-linux libuuid">
1392 <primary sortas="c-libuuid">libuuid</primary>
1393 </indexterm>
1394 </listitem>
1395 </varlistentry>
1396
1397 </variablelist>
1398
1399 </sect2>
1400
1401</sect1>
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