source: clfs-sysroot/BOOK/final-system/common/util-linux.xml@ 052ecb7

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[02095ae]1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3 "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-util-linux" role="wrap">
9 <?dbhtml filename="util-linux.html"?>
10
11 <title>Util-linux-&util-linux-version;</title>
12
13 <indexterm zone="ch-system-util-linux">
14 <primary sortas="a-Util-linux">Util-linux</primary>
15 </indexterm>
16
17 <sect2 role="package">
18 <title/>
19
20 <para>The Util-linux package contains miscellaneous utility programs.
21 Among them are utilities for handling file systems, consoles, partitions,
22 and messages.</para>
23
24
25 </sect2>
26
27 <sect2 id="fhs-util-linux" role="installation">
28 <title>FHS compliance notes</title>
29
30 <para>The FHS recommends using the <filename
31 class="directory">/var/lib/hwclock</filename> directory instead of the
32 usual <filename class="directory">/etc</filename> directory as the
33 location for the <filename>adjtime</filename> file. To make the
34 <command>hwclock</command> program FHS-compliant, run the following:</para>
35
[3349a3a]36<screen><userinput>cp hwclock/hwclock.c{,.orig}
37sed 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
38 hwclock/hwclock.c.orig &gt; hwclock/hwclock.c
[586feb7]39mkdir -pv ${CLFS}/var/lib/hwclock</userinput></screen>
[02095ae]40
41 </sect2>
42
43 <sect2 role="installation">
44 <title>Installation of Util-linux</title>
45
46 <para os="p1">Util-linux fails to compile against newer versions of
47 Linux kernel headers. The following patch properly fixes this issue:</para>
48
49<screen os="p2"><userinput>patch -Np1 -i ../&util-linux-cramfs-patch;</userinput></screen>
50
51 <para os="p3">The following patch fixes build issues with GCC &gcc-version;:</para>
52
53<screen os="p4"><userinput>patch -Np1 -i ../&util-linux-gcc4_fixes-patch;</userinput></screen>
54
[823185c]55 <para os="p5">The following patch fixes swapon.c - it tries to find the
[59fb197]56 variable R_OK, but the header that has R_OK is not included:</para>
57
58<screen os="p6"><userinput>patch -Np1 -i ../&util-linux-missing_header-patch;</userinput></screen>
59
[02095ae]60 <para os="s1">The following sed prevents the installed files from being
61 owned by root</para>
62
63<screen os="s2"><userinput>cp MCONFIG{,.orig}
64sed -e "s/-o root//" MCONFIG.orig > MCONFIG</userinput></screen>
65
66 <para os="a">Prepare Util-linux for compilation:</para>
67
68<screen os="b"><userinput>./configure</userinput></screen>
69
70 <para os="c">Compile the package:</para>
71
72<screen os="d"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
73CPUOPT="" ARCH="" CPU=""</userinput></screen>
74
75 <variablelist os="e">
76 <title>The meaning of the make parameters:</title>
77
78 <varlistentry os="e1">
79 <term><parameter>HAVE_KILL=yes</parameter></term>
80 <listitem>
81 <para>This prevents the <command>kill</command> program (already
82 installed by Procps) from being built and installed again.</para>
83 </listitem>
84 </varlistentry>
85
86 <varlistentry os="e2">
87 <term><parameter>HAVE_SLN=yes</parameter></term>
88 <listitem>
89 <para>This prevents the <command>sln</command> program (a
90 statically linked version of <command>ln</command> already installed
91 by Glibc) from being built and installed again.</para>
92 </listitem>
93 </varlistentry>
94
95 <varlistentry os="e3">
96 <term><parameter>CPUOPT=""</parameter></term>
97 <listitem>
98 <para>This disables any compiler optimizations by CPU type.</para>
99 </listitem>
100 </varlistentry>
101
102 <varlistentry os="e4">
103 <term><parameter>ARCH=""</parameter></term>
104 <listitem>
105 <para>This disables the detection of the architecture.</para>
106 </listitem>
107 </varlistentry>
108
109 <varlistentry os="e5">
110 <term><parameter>CPU=""</parameter></term>
111 <listitem>
112 <para>This disables the detection of the CPU.</para>
113 </listitem>
114 </varlistentry>
115
116 </variablelist>
117
118 <para os="f">Install the package and move the <command>logger</command> binary
119 to <filename class="directory">/bin</filename> as it is needed by the
[1a09536]120 CLFS-Bootscripts package:</para>
[02095ae]121
122<screen os="g"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
[586feb7]123CPUOPT="" ARCH="" CPU="" USE_TTY_GROUP=no DESTDIR=${CLFS} install
124mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
[02095ae]125
126 </sect2>
127
128 <sect2 id="contents-util-linux" role="content">
129 <title>Contents of Util-linux</title>
130
131 <segmentedlist>
132 <segtitle>Installed programs</segtitle>
133
134 <seglistitem>
135 <seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
136 colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat,
[82b662d]137 fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
[02095ae]138 ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs,
139 mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root,
140 ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev,
141 rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk,
[82b662d]142 swapoff (link to swapon), swapon, tailf, tunelp, ul, umount, vidmode
[02095ae]143 (link to rdev), whereis, and write</seg>
144 </seglistitem>
145 </segmentedlist>
146
147 <variablelist>
148 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
149 <?dbfo list-presentation="list"?>
150 <?dbhtml list-presentation="table"?>
151
152 <varlistentry id="agetty">
153 <term><command>agetty</command></term>
154 <listitem>
155 <para>Opens a tty port, prompts for a login name,
156 and then invokes the <command>login</command> program</para>
157 <indexterm zone="ch-system-util-linux agetty">
158 <primary sortas="b-agetty">agetty</primary>
159 </indexterm>
160 </listitem>
161 </varlistentry>
162
163 <varlistentry id="arch">
164 <term><command>arch</command></term>
165 <listitem>
166 <para>Reports the machine's architecture</para>
167 <indexterm zone="ch-system-util-linux arch">
168 <primary sortas="b-arch">arch</primary>
169 </indexterm>
170 </listitem>
171 </varlistentry>
172
173 <varlistentry id="blockdev">
174 <term><command>blockdev</command></term>
175 <listitem>
176 <para>Allows users to call block device ioctls from the command
177 line</para>
178 <indexterm zone="ch-system-util-linux blockdev">
179 <primary sortas="b-blockdev">blockdev</primary>
180 </indexterm>
181 </listitem>
182 </varlistentry>
183
184 <varlistentry id="cal">
185 <term><command>cal</command></term>
186 <listitem>
187 <para>Displays a simple calendar</para>
188 <indexterm zone="ch-system-util-linux cal">
189 <primary sortas="b-cal">cal</primary>
190 </indexterm>
191 </listitem>
192 </varlistentry>
193
194 <varlistentry id="cfdisk">
195 <term><command>cfdisk</command></term>
196 <listitem>
197 <para>Manipulates the partition table of the given device</para>
198 <indexterm zone="ch-system-util-linux cfdisk">
199 <primary sortas="b-cfdisk">cfdisk</primary>
200 </indexterm>
201 </listitem>
202 </varlistentry>
203
204 <varlistentry id="chkdupexe">
205 <term><command>chkdupexe</command></term>
206 <listitem>
207 <para>Finds duplicate executables</para>
208 <indexterm zone="ch-system-util-linux chkdupexe">
209 <primary sortas="b-chkdupexe">chkdupexe</primary>
210 </indexterm>
211 </listitem>
212 </varlistentry>
213
214 <varlistentry id="col">
215 <term><command>col</command></term>
216 <listitem>
217 <para>Filters out reverse line feeds</para>
218 <indexterm zone="ch-system-util-linux col">
219 <primary sortas="b-col">col</primary>
220 </indexterm>
221 </listitem>
222 </varlistentry>
223
224 <varlistentry id="colcrt">
225 <term><command>colcrt</command></term>
226 <listitem>
227 <para>Filters <command>nroff</command> output for terminals
228 that lack some capabilities, such as overstriking and half-lines</para>
229 <indexterm zone="ch-system-util-linux colcrt">
230 <primary sortas="b-colcrt">colcrt</primary>
231 </indexterm>
232 </listitem>
233 </varlistentry>
234
235 <varlistentry id="colrm">
236 <term><command>colrm</command></term>
237 <listitem>
238 <para>Filters out the given columns</para>
239 <indexterm zone="ch-system-util-linux colrm">
240 <primary sortas="b-colrm">colrm</primary>
241 </indexterm>
242 </listitem>
243 </varlistentry>
244
245 <varlistentry id="column">
246 <term><command>column</command></term>
247 <listitem>
248 <para>Formats a given file into multiple columns</para>
249 <indexterm zone="ch-system-util-linux column">
250 <primary sortas="b-column">column</primary>
251 </indexterm>
252 </listitem>
253 </varlistentry>
254
255 <varlistentry id="ctrlaltdel">
256 <term><command>ctrlaltdel</command></term>
257 <listitem>
258 <para>Sets the function of the Ctrl+Alt+Del key combination to a
259 hard or a soft reset</para>
260 <indexterm zone="ch-system-util-linux ctrlaltdel">
261 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
262 </indexterm>
263 </listitem>
264 </varlistentry>
265
266 <varlistentry id="cytune">
267 <term><command>cytune</command></term>
268 <listitem>
269 <para>Tunes the parameters of the serial line drivers for
270 Cyclades cards</para>
271 <indexterm zone="ch-system-util-linux cytune">
272 <primary sortas="b-cytune">cytune</primary>
273 </indexterm>
274 </listitem>
275 </varlistentry>
276
277 <varlistentry id="ddate">
278 <term><command>ddate</command></term>
279 <listitem>
280 <para>Gives the Discordian date or converts the given Gregorian date
281 to a Discordian one</para>
282 <indexterm zone="ch-system-util-linux ddate">
283 <primary sortas="b-ddate">ddate</primary>
284 </indexterm>
285 </listitem>
286 </varlistentry>
287
288 <varlistentry id="dmesg">
289 <term><command>dmesg</command></term>
290 <listitem>
291 <para>Dumps the kernel boot messages</para>
292 <indexterm zone="ch-system-util-linux dmesg">
293 <primary sortas="b-dmesg">dmesg</primary>
294 </indexterm>
295 </listitem>
296 </varlistentry>
297
298 <varlistentry id="elvtune">
299 <term><command>elvtune</command></term>
300 <listitem>
301 <para>Tunes the performance and interactivity of a block
302 device</para>
303 <indexterm zone="ch-system-util-linux elvtune">
304 <primary sortas="b-elvtune">elvtune</primary>
305 </indexterm>
306 </listitem>
307 </varlistentry>
308
309 <varlistentry id="fdformat">
310 <term><command>fdformat</command></term>
311 <listitem>
312 <para>Low-level formats a floppy disk</para>
313 <indexterm zone="ch-system-util-linux fdformat">
314 <primary sortas="b-fdformat">fdformat</primary>
315 </indexterm>
316 </listitem>
317 </varlistentry>
318
319 <varlistentry id="fdisk">
320 <term><command>fdisk</command></term>
321 <listitem>
322 <para>Manipulates the partition table of the given device</para>
323 <indexterm zone="ch-system-util-linux fdisk">
324 <primary sortas="b-fdisk">fdisk</primary>
325 </indexterm>
326 </listitem>
327 </varlistentry>
328
[82b662d]329 <varlistentry id="flock">
330 <term><command>flock</command></term>
331 <listitem>
332 <para>Acquires a file lock and then executes a command with the lock
333 held</para>
334 <indexterm zone="ch-system-util-linux flock">
335 <primary sortas="b-flock">flock</primary>
336 </indexterm>
337 </listitem>
338 </varlistentry>
339
[02095ae]340 <varlistentry id="fsck.cramfs">
341 <term><command>fsck.cramfs</command></term>
342 <listitem>
343 <para>Performs a consistency check on the Cramfs file system on the
344 given device</para>
345 <indexterm zone="ch-system-util-linux fsck.cramfs">
346 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
347 </indexterm>
348 </listitem>
349 </varlistentry>
350
351 <varlistentry id="fsck.minix">
352 <term><command>fsck.minix</command></term>
353 <listitem>
354 <para>Performs a consistency check on the Minix file system on the
355 given device</para>
356 <indexterm zone="ch-system-util-linux fsck.minix">
357 <primary sortas="b-fsck.minix">fsck.minix</primary>
358 </indexterm>
359 </listitem>
360 </varlistentry>
361
362 <varlistentry id="getopt">
363 <term><command>getopt</command></term>
364 <listitem>
365 <para>Parses options in the given command line</para>
366 <indexterm zone="ch-system-util-linux getopt">
367 <primary sortas="b-getopt">getopt</primary>
368 </indexterm>
369 </listitem>
370 </varlistentry>
371
372 <varlistentry id="hexdump">
373 <term><command>hexdump</command></term>
374 <listitem>
375 <para>Dumps the given file in hexadecimal or in another given
376 format</para>
377 <indexterm zone="ch-system-util-linux hexdump">
378 <primary sortas="b-hexdump">hexdump</primary>
379 </indexterm>
380 </listitem>
381 </varlistentry>
382
383 <varlistentry id="hwclock">
384 <term><command>hwclock</command></term>
385 <listitem>
386 <para>Reads or sets the system's hardware clock, also called
387 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
388 clock</para>
389 <indexterm zone="ch-system-util-linux hwclock">
390 <primary sortas="b-hwclock">hwclock</primary>
391 </indexterm>
392 </listitem>
393 </varlistentry>
394
395 <varlistentry id="ipcrm">
396 <term><command>ipcrm</command></term>
397 <listitem>
398 <para>Removes the given Inter-Process Communication (IPC) resource</para>
399 <indexterm zone="ch-system-util-linux ipcrm">
400 <primary sortas="b-ipcrm">ipcrm</primary>
401 </indexterm>
402 </listitem>
403 </varlistentry>
404
405 <varlistentry id="ipcs">
406 <term><command>ipcs</command></term>
407 <listitem>
408 <para>Provides IPC status information</para>
409 <indexterm zone="ch-system-util-linux ipcs">
410 <primary sortas="b-ipcs">ipcs</primary>
411 </indexterm>
412 </listitem>
413 </varlistentry>
414
415 <varlistentry id="isosize">
416 <term><command>isosize</command></term>
417 <listitem>
418 <para>Reports the size of an iso9660 file system</para>
419 <indexterm zone="ch-system-util-linux isosize">
420 <primary sortas="b-isosize">isosize</primary>
421 </indexterm>
422 </listitem>
423 </varlistentry>
424
425 <varlistentry id="line">
426 <term><command>line</command></term>
427 <listitem>
428 <para>Copies a single line</para>
429 <indexterm zone="ch-system-util-linux line">
430 <primary sortas="b-line">line</primary>
431 </indexterm>
432 </listitem>
433 </varlistentry>
434
435 <varlistentry id="logger">
436 <term><command>logger</command></term>
437 <listitem>
438 <para>Enters the given message into the system log</para>
439 <indexterm zone="ch-system-util-linux logger">
440 <primary sortas="b-logger">logger</primary>
441 </indexterm>
442 </listitem>
443 </varlistentry>
444
445 <varlistentry id="look">
446 <term><command>look</command></term>
447 <listitem>
448 <para>Displays lines that begin with the given string</para>
449 <indexterm zone="ch-system-util-linux look">
450 <primary sortas="b-look">look</primary>
451 </indexterm>
452 </listitem>
453 </varlistentry>
454
455 <varlistentry id="losetup">
456 <term><command>losetup</command></term>
457 <listitem>
458 <para>Sets up and controls loop devices</para>
459 <indexterm zone="ch-system-util-linux losetup">
460 <primary sortas="b-losetup">losetup</primary>
461 </indexterm>
462 </listitem>
463 </varlistentry>
464
465 <varlistentry id="mcookie">
466 <term><command>mcookie</command></term>
467 <listitem>
468 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
469 <command>xauth</command></para>
470 <indexterm zone="ch-system-util-linux mcookie">
471 <primary sortas="b-mcookie">mcookie</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="mkfs">
477 <term><command>mkfs</command></term>
478 <listitem>
479 <para>Builds a file system on a device (usually a hard disk
480 partition)</para>
481 <indexterm zone="ch-system-util-linux mkfs">
482 <primary sortas="b-mkfs">mkfs</primary>
483 </indexterm>
484 </listitem>
485 </varlistentry>
486
487 <varlistentry id="mkfs.bfs">
488 <term><command>mkfs.bfs</command></term>
489 <listitem>
490 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
491 <indexterm zone="ch-system-util-linux mkfs.bfs">
492 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
493 </indexterm>
494 </listitem>
495 </varlistentry>
496
497 <varlistentry id="mkfs.cramfs">
498 <term><command>mkfs.cramfs</command></term>
499 <listitem>
500 <para>Creates a cramfs file system</para>
501 <indexterm zone="ch-system-util-linux mkfs.cramfs">
502 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
503 </indexterm>
504 </listitem>
505 </varlistentry>
506
507 <varlistentry id="mkfs.minix">
508 <term><command>mkfs.minix</command></term>
509 <listitem>
510 <para>Creates a Minix file system</para>
511 <indexterm zone="ch-system-util-linux mkfs.minix">
512 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
513 </indexterm>
514 </listitem>
515 </varlistentry>
516
517 <varlistentry id="mkswap">
518 <term><command>mkswap</command></term>
519 <listitem>
520 <para>Initializes the given device or file to be used as a swap
521 area</para>
522 <indexterm zone="ch-system-util-linux mkswap">
523 <primary sortas="b-mkswap">mkswap</primary>
524 </indexterm>
525 </listitem>
526 </varlistentry>
527
528 <varlistentry id="more">
529 <term><command>more</command></term>
530 <listitem>
531 <para>A filter for paging through text one screen at a time</para>
532 <indexterm zone="ch-system-util-linux more">
533 <primary sortas="b-more">more</primary>
534 </indexterm>
535 </listitem>
536 </varlistentry>
537
538 <varlistentry id="mount">
539 <term><command>mount</command></term>
540 <listitem>
541 <para>Attaches the file system on the given device to a specified
542 directory in the file-system tree</para>
543 <indexterm zone="ch-system-util-linux mount">
544 <primary sortas="b-mount">mount</primary>
545 </indexterm>
546 </listitem>
547 </varlistentry>
548
549 <varlistentry id="namei">
550 <term><command>namei</command></term>
551 <listitem>
552 <para>Shows the symbolic links in the given pathnames</para>
553 <indexterm zone="ch-system-util-linux namei">
554 <primary sortas="b-namei">namei</primary>
555 </indexterm>
556 </listitem>
557 </varlistentry>
558
559 <varlistentry id="pg">
560 <term><command>pg</command></term>
561 <listitem>
562 <para>Displays a text file one screen full at a time</para>
563 <indexterm zone="ch-system-util-linux pg">
564 <primary sortas="b-pg">pg</primary>
565 </indexterm>
566 </listitem>
567 </varlistentry>
568
569 <varlistentry id="pivot_root">
570 <term><command>pivot_root</command></term>
571 <listitem>
572 <para>Makes the given file system the new root file system of the
573 current process</para>
574 <indexterm zone="ch-system-util-linux pivot_root">
575 <primary sortas="b-pivot_root">pivot_root</primary>
576 </indexterm>
577 </listitem>
578 </varlistentry>
579
580 <varlistentry id="ramsize">
581 <term><command>ramsize</command></term>
582 <listitem>
583 <para>Sets the size of the RAM disk in a bootable image</para>
584 <indexterm zone="ch-system-util-linux ramsize">
585 <primary sortas="b-ramsize">ramsize</primary>
586 </indexterm>
587 </listitem>
588 </varlistentry>
589
590 <varlistentry id="raw">
591 <term><command>raw</command></term>
592 <listitem>
593 <para>Used to bind a Linux raw character device to a block
594 device</para>
595 <indexterm zone="ch-system-util-linux raw">
596 <primary sortas="b-raw">raw</primary>
597 </indexterm>
598 </listitem>
599 </varlistentry>
600
601 <varlistentry id="rdev">
602 <term><command>rdev</command></term>
603 <listitem>
604 <para>Queries and sets the root device, among other things, in a
605 bootable image</para>
606 <indexterm zone="ch-system-util-linux rdev">
607 <primary sortas="b-rdev">rdev</primary>
608 </indexterm>
609 </listitem>
610 </varlistentry>
611
612 <varlistentry id="readprofile">
613 <term><command>readprofile</command></term>
614 <listitem>
615 <para>Reads kernel profiling information</para>
616 <indexterm zone="ch-system-util-linux readprofile">
617 <primary sortas="b-readprofile">readprofile</primary>
618 </indexterm>
619 </listitem>
620 </varlistentry>
621
622 <varlistentry id="rename">
623 <term><command>rename</command></term>
624 <listitem>
625 <para>Renames the given files, replacing a given string with
626 another</para>
627 <indexterm zone="ch-system-util-linux rename">
628 <primary sortas="b-rename">rename</primary>
629 </indexterm>
630 </listitem>
631 </varlistentry>
632
633 <varlistentry id="renice">
634 <term><command>renice</command></term>
635 <listitem>
636 <para>Alters the priority of running processes</para>
637 <indexterm zone="ch-system-util-linux renice">
638 <primary sortas="b-renice">renice</primary>
639 </indexterm>
640 </listitem>
641 </varlistentry>
642
643 <varlistentry id="rev">
644 <term><command>rev</command></term>
645 <listitem>
646 <para>Reverses the lines of a given file</para>
647 <indexterm zone="ch-system-util-linux rev">
648 <primary sortas="b-rev">rev</primary>
649 </indexterm>
650 </listitem>
651 </varlistentry>
652
653 <varlistentry id="rootflags">
654 <term><command>rootflags</command></term>
655 <listitem>
656 <para>Sets the rootflags in a bootable image</para>
657 <indexterm zone="ch-system-util-linux rootflags">
658 <primary sortas="b-rootflags">rootflags</primary>
659 </indexterm>
660 </listitem>
661 </varlistentry>
662
663 <varlistentry id="script">
664 <term><command>script</command></term>
665 <listitem>
666 <para>Makes a typescript of a terminal session</para>
667 <indexterm zone="ch-system-util-linux script">
668 <primary sortas="b-script">script</primary>
669 </indexterm>
670 </listitem>
671 </varlistentry>
672
673 <varlistentry id="setfdprm">
674 <term><command>setfdprm</command></term>
675 <listitem>
676 <para>Sets user-provided floppy disk parameters</para>
677 <indexterm zone="ch-system-util-linux setfdprm">
678 <primary sortas="b-setfdprm">setfdprm</primary>
679 </indexterm>
680 </listitem>
681 </varlistentry>
682
683 <varlistentry id="setsid">
684 <term><command>setsid</command></term>
685 <listitem>
686 <para>Runs the given program in a new session</para>
687 <indexterm zone="ch-system-util-linux setsid">
688 <primary sortas="b-setsid">setsid</primary>
689 </indexterm>
690 </listitem>
691 </varlistentry>
692
693 <varlistentry id="setterm">
694 <term><command>setterm</command></term>
695 <listitem>
696 <para>Sets terminal attributes</para>
697 <indexterm zone="ch-system-util-linux setterm">
698 <primary sortas="b-setterm">setterm</primary>
699 </indexterm>
700 </listitem>
701 </varlistentry>
702
703 <varlistentry id="sfdisk">
704 <term><command>sfdisk</command></term>
705 <listitem>
706 <para>A disk partition table manipulator</para>
707 <indexterm zone="ch-system-util-linux sfdisk">
708 <primary sortas="b-sfdisk">sfdisk</primary>
709 </indexterm>
710 </listitem>
711 </varlistentry>
712
713 <varlistentry id="swapoff">
714 <term><command>swapoff</command></term>
715 <listitem>
716 <para>Disables devices and files for paging and swapping</para>
717 <indexterm zone="ch-system-util-linux swapoff">
718 <primary sortas="b-swapoff">swapoff</primary>
719 </indexterm>
720 </listitem>
721 </varlistentry>
722
723 <varlistentry id="swapon">
724 <term><command>swapon</command></term>
725 <listitem>
726 <para>Enables devices and files for paging and swapping and
727 lists the devices and files currently in use</para>
728 <indexterm zone="ch-system-util-linux swapon">
729 <primary sortas="b-swapon">swapon</primary>
730 </indexterm>
731 </listitem>
732 </varlistentry>
733
[82b662d]734 <varlistentry id="tailf">
735 <term><command>tailf</command></term>
736 <listitem>
737 <para>Tracks the growth of a log file. Displays the last 10 lines
738 of a log file, then continues displaying any new entries in the
739 log file as they are created</para>
740 <indexterm zone="ch-system-util-linux tailf">
741 <primary sortas="b-tailf">tailf</primary>
742 </indexterm>
743 </listitem>
744 </varlistentry>
745
[02095ae]746 <varlistentry id="tunelp">
747 <term><command>tunelp</command></term>
748 <listitem>
749 <para>Tunes the parameters of the line printer</para>
750 <indexterm zone="ch-system-util-linux tunelp">
751 <primary sortas="b-tunelp">tunelp</primary>
752 </indexterm>
753 </listitem>
754 </varlistentry>
755
756 <varlistentry id="ul">
757 <term><command>ul</command></term>
758 <listitem>
759 <para>A filter for translating underscores into escape sequences
760 indicating underlining for the terminal in use</para>
761 <indexterm zone="ch-system-util-linux ul">
762 <primary sortas="b-ul">ul</primary>
763 </indexterm>
764 </listitem>
765 </varlistentry>
766
767 <varlistentry id="umount">
768 <term><command>umount</command></term>
769 <listitem>
770 <para>Disconnects a file system from the system's file tree</para>
771 <indexterm zone="ch-system-util-linux umount">
772 <primary sortas="b-umount">umount</primary>
773 </indexterm>
774 </listitem>
775 </varlistentry>
776
777 <varlistentry id="vidmode">
778 <term><command>vidmode</command></term>
779 <listitem>
780 <para>Sets the video mode in a bootable image</para>
781 <indexterm zone="ch-system-util-linux vidmode">
782 <primary sortas="b-vidmode">vidmode</primary>
783 </indexterm>
784 </listitem>
785 </varlistentry>
786
787 <varlistentry id="whereis">
788 <term><command>whereis</command></term>
789 <listitem>
790 <para>Reports the location of the binary, source, and man page
791 for the given command</para>
792 <indexterm zone="ch-system-util-linux whereis">
793 <primary sortas="b-whereis">whereis</primary>
794 </indexterm>
795 </listitem>
796 </varlistentry>
797
798 <varlistentry id="write">
799 <term><command>write</command></term>
800 <listitem>
801 <para>Sends a message to the given user <emphasis>if</emphasis> that
802 user has not disabled receipt of such messages</para>
803 <indexterm zone="ch-system-util-linux write">
804 <primary sortas="b-write">write</primary>
805 </indexterm>
806 </listitem>
807 </varlistentry>
808
809 </variablelist>
810
811 </sect2>
812
813</sect1>
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