source: clfs-sysroot/BOOK/final-system/common/util-linux-ng.xml@ 0eb57e6

Last change on this file since 0eb57e6 was 846eed7, checked in by Joe Ciccone <jciccone@…>, 17 years ago

Create entities for each uid and gid and reference those entities throught the book instead of using user names and group names. prevent util-linux-ng from changing programs groups.

  • Property mode set to 100644
File size: 27.0 KB
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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-ng" role="wrap">
9 <?dbhtml filename="util-linux-ng.html"?>
10
11 <title>Util-linux-ng-&util-linux-ng-version;</title>
12
13 <indexterm zone="ch-system-util-linux-ng">
14 <primary sortas="a-Util-linux-ng">Util-linux-ng</primary>
15 </indexterm>
16
17 <sect2 role="package">
18 <title/>
19
20 <para>The Util-linux-ng 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-ng" 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
36<screen><userinput>cp hwclock/hwclock.c{,.orig}
37sed -e 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
38 hwclock/hwclock.c.orig > hwclock/hwclock.c
39mkdir -pv ${CLFS}/var/lib/hwclock</userinput></screen>
40
41 </sect2>
42
43 <sect2 role="installation">
44 <title>Installation of Util-linux-ng</title>
45
46 <para os="a">Prepare Util-linux-ng for compilation:</para>
47
48<screen os="b"><userinput>./configure --build=${CLFS_HOST} --host=${CLFS_TARGET} \
49 --enable-partx --disable-wall --enable-write \
50 --disable-makeinstall-chown</userinput></screen>
51
52 <variablelist os="c">
53 <title>The meaning of the configure options:</title>
54
55 <varlistentry>
56 <term><parameter>--enable-partx</parameter></term>
57 <listitem>
58 <para>Enable partx stuff (need more description).</para>
59 </listitem>
60 </varlistentry>
61
62 <varlistentry>
63 <term><parameter>--disable-wall</parameter></term>
64 <listitem>
65 <para>Disables building the <command>wall</command> program,
66 as the Sysvinit package installs its own version.</para>
67 </listitem>
68 </varlistentry>
69
70 <varlistentry>
71 <term><parameter>--enable-write</parameter></term>
72 <listitem>
73 <para>This option allows the <command>write</command> program to be
74 installed.</para>
75 </listitem>
76 </varlistentry>
77
78 <varlistentry>
79 <term><parameter>--disable-makeinstall-chown</parameter></term>
80 <listitem>
81 <para>This option prevents installed programs from having groups
82 changed. They will be changed later in the book.</para>
83 </listitem>
84 </varlistentry>
85
86 </variablelist>
87
88 <para os="d">Compile the package:</para>
89
90<screen os="e"><userinput>make</userinput></screen>
91
92 <para os="f">Install the package:</para>
93
94<screen os="g"><userinput>make DESTDIR=${CLFS} install</userinput></screen>
95
96 <para os="h">Move the <command>logger</command> binary to
97 <filename class="directory">/bin</filename> as it is needed by the
98 CLFS-Bootscripts package:</para>
99
100<screen os="i"><userinput>mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
101
102 </sect2>
103
104 <sect2 id="contents-util-linux-ng" role="content">
105 <title>Contents of Util-linux-ng</title>
106
107 <segmentedlist>
108 <segtitle>Installed programs</segtitle>
109
110 <seglistitem>
111 <seg>addpart, agetty, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
112 colrm, column, ctrlaltdel, cytune, ddate, delpart, dmesg, fdformat,
113 fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ionice,
114 ipcrm, ipcs, isosize, line, logger, look, losetup, mcookie, mkfs,
115 mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, partx,
116 pg, pivot_root, readprofile, rename, renice, rev, rtcwake, script,
117 scriptreplay, setarch, setsid, setterm, sfdisk, swapoff (link to swapon),
118 swapon, tailf, taskset, tunelp, ul, umount, whereis, and write</seg>
119 </seglistitem>
120 </segmentedlist>
121
122 <variablelist>
123 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
124 <?dbfo list-presentation="list"?>
125 <?dbhtml list-presentation="table"?>
126
127 <varlistentry id="addpart">
128 <term><command>addpart</command></term>
129 <listitem>
130 <para>Informs the kernel of a new partition</para>
131 <indexterm zone="ch-system-util-linux-ng addpart">
132 <primary sortas="b-addpart">addpart</primary>
133 </indexterm>
134 </listitem>
135 </varlistentry>
136
137 <varlistentry id="agetty">
138 <term><command>agetty</command></term>
139 <listitem>
140 <para>Opens a tty port, prompts for a login name,
141 and then invokes the <command>login</command> program</para>
142 <indexterm zone="ch-system-util-linux-ng agetty">
143 <primary sortas="b-agetty">agetty</primary>
144 </indexterm>
145 </listitem>
146 </varlistentry>
147
148 <varlistentry id="blockdev">
149 <term><command>blockdev</command></term>
150 <listitem>
151 <para>Allows users to call block device ioctls from the command
152 line</para>
153 <indexterm zone="ch-system-util-linux-ng blockdev">
154 <primary sortas="b-blockdev">blockdev</primary>
155 </indexterm>
156 </listitem>
157 </varlistentry>
158
159 <varlistentry id="cal">
160 <term><command>cal</command></term>
161 <listitem>
162 <para>Displays a simple calendar</para>
163 <indexterm zone="ch-system-util-linux-ng cal">
164 <primary sortas="b-cal">cal</primary>
165 </indexterm>
166 </listitem>
167 </varlistentry>
168
169 <varlistentry id="cfdisk">
170 <term><command>cfdisk</command></term>
171 <listitem>
172 <para>Manipulates the partition table of the given device</para>
173 <indexterm zone="ch-system-util-linux-ng cfdisk">
174 <primary sortas="b-cfdisk">cfdisk</primary>
175 </indexterm>
176 </listitem>
177 </varlistentry>
178
179 <varlistentry id="chkdupexe">
180 <term><command>chkdupexe</command></term>
181 <listitem>
182 <para>Finds duplicate executables</para>
183 <indexterm zone="ch-system-util-linux-ng chkdupexe">
184 <primary sortas="b-chkdupexe">chkdupexe</primary>
185 </indexterm>
186 </listitem>
187 </varlistentry>
188
189 <varlistentry id="col">
190 <term><command>col</command></term>
191 <listitem>
192 <para>Filters out reverse line feeds</para>
193 <indexterm zone="ch-system-util-linux-ng col">
194 <primary sortas="b-col">col</primary>
195 </indexterm>
196 </listitem>
197 </varlistentry>
198
199 <varlistentry id="colcrt">
200 <term><command>colcrt</command></term>
201 <listitem>
202 <para>Filters <command>nroff</command> output for terminals
203 that lack some capabilities, such as overstriking and half-lines</para>
204 <indexterm zone="ch-system-util-linux-ng colcrt">
205 <primary sortas="b-colcrt">colcrt</primary>
206 </indexterm>
207 </listitem>
208 </varlistentry>
209
210 <varlistentry id="colrm">
211 <term><command>colrm</command></term>
212 <listitem>
213 <para>Filters out the given columns</para>
214 <indexterm zone="ch-system-util-linux-ng colrm">
215 <primary sortas="b-colrm">colrm</primary>
216 </indexterm>
217 </listitem>
218 </varlistentry>
219
220 <varlistentry id="column">
221 <term><command>column</command></term>
222 <listitem>
223 <para>Formats a given file into multiple columns</para>
224 <indexterm zone="ch-system-util-linux-ng column">
225 <primary sortas="b-column">column</primary>
226 </indexterm>
227 </listitem>
228 </varlistentry>
229
230 <varlistentry id="ctrlaltdel">
231 <term><command>ctrlaltdel</command></term>
232 <listitem>
233 <para>Sets the function of the Ctrl+Alt+Del key combination to a
234 hard or a soft reset</para>
235 <indexterm zone="ch-system-util-linux-ng ctrlaltdel">
236 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
237 </indexterm>
238 </listitem>
239 </varlistentry>
240
241 <varlistentry id="cytune">
242 <term><command>cytune</command></term>
243 <listitem>
244 <para>Tunes the parameters of the serial line drivers for
245 Cyclades cards</para>
246 <indexterm zone="ch-system-util-linux-ng cytune">
247 <primary sortas="b-cytune">cytune</primary>
248 </indexterm>
249 </listitem>
250 </varlistentry>
251
252 <varlistentry id="ddate">
253 <term><command>ddate</command></term>
254 <listitem>
255 <para>Gives the Discordian date or converts the given Gregorian date
256 to a Discordian one</para>
257 <indexterm zone="ch-system-util-linux-ng ddate">
258 <primary sortas="b-ddate">ddate</primary>
259 </indexterm>
260 </listitem>
261 </varlistentry>
262
263 <varlistentry id="delpart">
264 <term><command>delpart</command></term>
265 <listitem>
266 <para>Asks the kernel to remove a partition</para>
267 <indexterm zone="ch-system-util-linux-ng delpart">
268 <primary sortas="b-delpart">delpart</primary>
269 </indexterm>
270 </listitem>
271 </varlistentry>
272
273 <varlistentry id="dmesg">
274 <term><command>dmesg</command></term>
275 <listitem>
276 <para>Dumps the kernel boot messages</para>
277 <indexterm zone="ch-system-util-linux-ng dmesg">
278 <primary sortas="b-dmesg">dmesg</primary>
279 </indexterm>
280 </listitem>
281 </varlistentry>
282
283 <varlistentry id="fdformat">
284 <term><command>fdformat</command></term>
285 <listitem>
286 <para>Low-level formats a floppy disk</para>
287 <indexterm zone="ch-system-util-linux-ng fdformat">
288 <primary sortas="b-fdformat">fdformat</primary>
289 </indexterm>
290 </listitem>
291 </varlistentry>
292
293 <varlistentry id="fdisk">
294 <term><command>fdisk</command></term>
295 <listitem>
296 <para>Manipulates the partition table of the given device</para>
297 <indexterm zone="ch-system-util-linux-ng fdisk">
298 <primary sortas="b-fdisk">fdisk</primary>
299 </indexterm>
300 </listitem>
301 </varlistentry>
302
303 <varlistentry id="flock">
304 <term><command>flock</command></term>
305 <listitem>
306 <para>Acquires a file lock and then executes a command with the lock
307 held</para>
308 <indexterm zone="ch-system-util-linux-ng flock">
309 <primary sortas="b-flock">flock</primary>
310 </indexterm>
311 </listitem>
312 </varlistentry>
313
314 <varlistentry id="fsck.cramfs">
315 <term><command>fsck.cramfs</command></term>
316 <listitem>
317 <para>Performs a consistency check on the Cramfs file system on the
318 given device</para>
319 <indexterm zone="ch-system-util-linux-ng fsck.cramfs">
320 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
321 </indexterm>
322 </listitem>
323 </varlistentry>
324
325 <varlistentry id="fsck.minix">
326 <term><command>fsck.minix</command></term>
327 <listitem>
328 <para>Performs a consistency check on the Minix file system on the
329 given device</para>
330 <indexterm zone="ch-system-util-linux-ng fsck.minix">
331 <primary sortas="b-fsck.minix">fsck.minix</primary>
332 </indexterm>
333 </listitem>
334 </varlistentry>
335
336 <varlistentry id="getopt">
337 <term><command>getopt</command></term>
338 <listitem>
339 <para>Parses options in the given command line</para>
340 <indexterm zone="ch-system-util-linux-ng getopt">
341 <primary sortas="b-getopt">getopt</primary>
342 </indexterm>
343 </listitem>
344 </varlistentry>
345
346 <varlistentry id="hexdump">
347 <term><command>hexdump</command></term>
348 <listitem>
349 <para>Dumps the given file in hexadecimal or in another given
350 format</para>
351 <indexterm zone="ch-system-util-linux-ng hexdump">
352 <primary sortas="b-hexdump">hexdump</primary>
353 </indexterm>
354 </listitem>
355 </varlistentry>
356
357 <varlistentry id="hwclock">
358 <term><command>hwclock</command></term>
359 <listitem>
360 <para>Reads or sets the system's hardware clock, also called
361 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
362 clock</para>
363 <indexterm zone="ch-system-util-linux-ng hwclock">
364 <primary sortas="b-hwclock">hwclock</primary>
365 </indexterm>
366 </listitem>
367 </varlistentry>
368
369 <varlistentry id="ionice">
370 <term><command>ionice</command></term>
371 <listitem>
372 <para>Gives and sets program I/O scheduling class and priority</para>
373 <indexterm zone="ch-system-util-linux-ng ionice">
374 <primary sortas="b-ionice">ionice</primary>
375 </indexterm>
376 </listitem>
377 </varlistentry>
378
379 <varlistentry id="ipcrm">
380 <term><command>ipcrm</command></term>
381 <listitem>
382 <para>Removes the given Inter-Process Communication (IPC) resource</para>
383 <indexterm zone="ch-system-util-linux-ng ipcrm">
384 <primary sortas="b-ipcrm">ipcrm</primary>
385 </indexterm>
386 </listitem>
387 </varlistentry>
388
389 <varlistentry id="ipcs">
390 <term><command>ipcs</command></term>
391 <listitem>
392 <para>Provides IPC status information</para>
393 <indexterm zone="ch-system-util-linux-ng ipcs">
394 <primary sortas="b-ipcs">ipcs</primary>
395 </indexterm>
396 </listitem>
397 </varlistentry>
398
399 <varlistentry id="isosize">
400 <term><command>isosize</command></term>
401 <listitem>
402 <para>Reports the size of an iso9660 file system</para>
403 <indexterm zone="ch-system-util-linux-ng isosize">
404 <primary sortas="b-isosize">isosize</primary>
405 </indexterm>
406 </listitem>
407 </varlistentry>
408
409 <varlistentry id="line">
410 <term><command>line</command></term>
411 <listitem>
412 <para>Copies a single line</para>
413 <indexterm zone="ch-system-util-linux-ng line">
414 <primary sortas="b-line">line</primary>
415 </indexterm>
416 </listitem>
417 </varlistentry>
418
419 <varlistentry id="logger">
420 <term><command>logger</command></term>
421 <listitem>
422 <para>Enters the given message into the system log</para>
423 <indexterm zone="ch-system-util-linux-ng logger">
424 <primary sortas="b-logger">logger</primary>
425 </indexterm>
426 </listitem>
427 </varlistentry>
428
429 <varlistentry id="look">
430 <term><command>look</command></term>
431 <listitem>
432 <para>Displays lines that begin with the given string</para>
433 <indexterm zone="ch-system-util-linux-ng look">
434 <primary sortas="b-look">look</primary>
435 </indexterm>
436 </listitem>
437 </varlistentry>
438
439 <varlistentry id="losetup">
440 <term><command>losetup</command></term>
441 <listitem>
442 <para>Sets up and controls loop devices</para>
443 <indexterm zone="ch-system-util-linux-ng losetup">
444 <primary sortas="b-losetup">losetup</primary>
445 </indexterm>
446 </listitem>
447 </varlistentry>
448
449 <varlistentry id="mcookie">
450 <term><command>mcookie</command></term>
451 <listitem>
452 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
453 <command>xauth</command></para>
454 <indexterm zone="ch-system-util-linux-ng mcookie">
455 <primary sortas="b-mcookie">mcookie</primary>
456 </indexterm>
457 </listitem>
458 </varlistentry>
459
460 <varlistentry id="mkfs">
461 <term><command>mkfs</command></term>
462 <listitem>
463 <para>Builds a file system on a device (usually a hard disk
464 partition)</para>
465 <indexterm zone="ch-system-util-linux-ng mkfs">
466 <primary sortas="b-mkfs">mkfs</primary>
467 </indexterm>
468 </listitem>
469 </varlistentry>
470
471 <varlistentry id="mkfs.bfs">
472 <term><command>mkfs.bfs</command></term>
473 <listitem>
474 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
475 <indexterm zone="ch-system-util-linux-ng mkfs.bfs">
476 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
477 </indexterm>
478 </listitem>
479 </varlistentry>
480
481 <varlistentry id="mkfs.cramfs">
482 <term><command>mkfs.cramfs</command></term>
483 <listitem>
484 <para>Creates a cramfs file system</para>
485 <indexterm zone="ch-system-util-linux-ng mkfs.cramfs">
486 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
487 </indexterm>
488 </listitem>
489 </varlistentry>
490
491 <varlistentry id="mkfs.minix">
492 <term><command>mkfs.minix</command></term>
493 <listitem>
494 <para>Creates a Minix file system</para>
495 <indexterm zone="ch-system-util-linux-ng mkfs.minix">
496 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
497 </indexterm>
498 </listitem>
499 </varlistentry>
500
501 <varlistentry id="mkswap">
502 <term><command>mkswap</command></term>
503 <listitem>
504 <para>Initializes the given device or file to be used as a swap
505 area</para>
506 <indexterm zone="ch-system-util-linux-ng mkswap">
507 <primary sortas="b-mkswap">mkswap</primary>
508 </indexterm>
509 </listitem>
510 </varlistentry>
511
512 <varlistentry id="more">
513 <term><command>more</command></term>
514 <listitem>
515 <para>A filter for paging through text one screen at a time</para>
516 <indexterm zone="ch-system-util-linux-ng more">
517 <primary sortas="b-more">more</primary>
518 </indexterm>
519 </listitem>
520 </varlistentry>
521
522 <varlistentry id="mount">
523 <term><command>mount</command></term>
524 <listitem>
525 <para>Attaches the file system on the given device to a specified
526 directory in the file-system tree</para>
527 <indexterm zone="ch-system-util-linux-ng mount">
528 <primary sortas="b-mount">mount</primary>
529 </indexterm>
530 </listitem>
531 </varlistentry>
532
533 <varlistentry id="namei">
534 <term><command>namei</command></term>
535 <listitem>
536 <para>Shows the symbolic links in the given pathnames</para>
537 <indexterm zone="ch-system-util-linux-ng namei">
538 <primary sortas="b-namei">namei</primary>
539 </indexterm>
540 </listitem>
541 </varlistentry>
542
543 <varlistentry id="partx">
544 <term><command>partx</command></term>
545 <listitem>
546 <para>Tells the kernel about the presence and numbering of on-disk
547 partitions</para>
548 <indexterm zone="ch-system-util-linux-ng partx">
549 <primary sortas="b-partx">partx</primary>
550 </indexterm>
551 </listitem>
552 </varlistentry>
553
554 <varlistentry id="pg">
555 <term><command>pg</command></term>
556 <listitem>
557 <para>Displays a text file one screen full at a time</para>
558 <indexterm zone="ch-system-util-linux-ng pg">
559 <primary sortas="b-pg">pg</primary>
560 </indexterm>
561 </listitem>
562 </varlistentry>
563
564 <varlistentry id="pivot_root">
565 <term><command>pivot_root</command></term>
566 <listitem>
567 <para>Makes the given file system the new root file system of the
568 current process</para>
569 <indexterm zone="ch-system-util-linux-ng pivot_root">
570 <primary sortas="b-pivot_root">pivot_root</primary>
571 </indexterm>
572 </listitem>
573 </varlistentry>
574
575 <varlistentry id="readprofile">
576 <term><command>readprofile</command></term>
577 <listitem>
578 <para>Reads kernel profiling information</para>
579 <indexterm zone="ch-system-util-linux-ng readprofile">
580 <primary sortas="b-readprofile">readprofile</primary>
581 </indexterm>
582 </listitem>
583 </varlistentry>
584
585 <varlistentry id="rename">
586 <term><command>rename</command></term>
587 <listitem>
588 <para>Renames the given files, replacing a given string with
589 another</para>
590 <indexterm zone="ch-system-util-linux-ng rename">
591 <primary sortas="b-rename">rename</primary>
592 </indexterm>
593 </listitem>
594 </varlistentry>
595
596 <varlistentry id="renice">
597 <term><command>renice</command></term>
598 <listitem>
599 <para>Alters the priority of running processes</para>
600 <indexterm zone="ch-system-util-linux-ng renice">
601 <primary sortas="b-renice">renice</primary>
602 </indexterm>
603 </listitem>
604 </varlistentry>
605
606 <varlistentry id="rev">
607 <term><command>rev</command></term>
608 <listitem>
609 <para>Reverses the lines of a given file</para>
610 <indexterm zone="ch-system-util-linux-ng rev">
611 <primary sortas="b-rev">rev</primary>
612 </indexterm>
613 </listitem>
614 </varlistentry>
615
616 <varlistentry id="rtcwake">
617 <term><command>rtcwake</command></term>
618 <listitem>
619 <para>Enters a system sleep state until a specified wakeup time</para>
620 <indexterm zone="ch-system-util-linux-ng rtcwake">
621 <primary sortas="b-rtcwake">rtcwake</primary>
622 </indexterm>
623 </listitem>
624 </varlistentry>
625
626 <varlistentry id="script">
627 <term><command>script</command></term>
628 <listitem>
629 <para>Makes a typescript of a terminal session</para>
630 <indexterm zone="ch-system-util-linux-ng script">
631 <primary sortas="b-script">script</primary>
632 </indexterm>
633 </listitem>
634 </varlistentry>
635
636 <varlistentry id="scriptreplay">
637 <term><command>scriptreplay</command></term>
638 <listitem>
639 <para>Plays back typescripts created by <command>script</command></para>
640 <indexterm zone="ch-system-util-linux-ng scriptreplay">
641 <primary sortas="b-scriptreplay">scriptreplay</primary>
642 </indexterm>
643 </listitem>
644 </varlistentry>
645
646 <varlistentry id="setarch">
647 <term><command>setarch</command></term>
648 <listitem>
649 <para>Changes reported architecture in new program environment and
650 sets personality flags</para>
651 <indexterm zone="ch-system-util-linux-ng setarch">
652 <primary sortas="b-setarch">setarch</primary>
653 </indexterm>
654 </listitem>
655 </varlistentry>
656
657 <varlistentry id="setsid">
658 <term><command>setsid</command></term>
659 <listitem>
660 <para>Runs the given program in a new session</para>
661 <indexterm zone="ch-system-util-linux-ng setsid">
662 <primary sortas="b-setsid">setsid</primary>
663 </indexterm>
664 </listitem>
665 </varlistentry>
666
667 <varlistentry id="setterm">
668 <term><command>setterm</command></term>
669 <listitem>
670 <para>Sets terminal attributes</para>
671 <indexterm zone="ch-system-util-linux-ng setterm">
672 <primary sortas="b-setterm">setterm</primary>
673 </indexterm>
674 </listitem>
675 </varlistentry>
676
677 <varlistentry id="sfdisk">
678 <term><command>sfdisk</command></term>
679 <listitem>
680 <para>A disk partition table manipulator</para>
681 <indexterm zone="ch-system-util-linux-ng sfdisk">
682 <primary sortas="b-sfdisk">sfdisk</primary>
683 </indexterm>
684 </listitem>
685 </varlistentry>
686
687 <varlistentry id="swapoff">
688 <term><command>swapoff</command></term>
689 <listitem>
690 <para>Disables devices and files for paging and swapping</para>
691 <indexterm zone="ch-system-util-linux-ng swapoff">
692 <primary sortas="b-swapoff">swapoff</primary>
693 </indexterm>
694 </listitem>
695 </varlistentry>
696
697 <varlistentry id="swapon">
698 <term><command>swapon</command></term>
699 <listitem>
700 <para>Enables devices and files for paging and swapping and
701 lists the devices and files currently in use</para>
702 <indexterm zone="ch-system-util-linux-ng swapon">
703 <primary sortas="b-swapon">swapon</primary>
704 </indexterm>
705 </listitem>
706 </varlistentry>
707
708 <varlistentry id="tailf">
709 <term><command>tailf</command></term>
710 <listitem>
711 <para>Tracks the growth of a log file. Displays the last 10 lines
712 of a log file, then continues displaying any new entries in the
713 log file as they are created</para>
714 <indexterm zone="ch-system-util-linux-ng tailf">
715 <primary sortas="b-tailf">tailf</primary>
716 </indexterm>
717 </listitem>
718 </varlistentry>
719
720 <varlistentry id="taskset">
721 <term><command>taskset</command></term>
722 <listitem>
723 <para>Retrieves or sets a process's CPU affinity</para>
724 <indexterm zone="ch-system-util-linux-ng taskset">
725 <primary sortas="b-taskset">taskset</primary>
726 </indexterm>
727 </listitem>
728 </varlistentry>
729
730 <varlistentry id="tunelp">
731 <term><command>tunelp</command></term>
732 <listitem>
733 <para>Tunes the parameters of the line printer</para>
734 <indexterm zone="ch-system-util-linux-ng tunelp">
735 <primary sortas="b-tunelp">tunelp</primary>
736 </indexterm>
737 </listitem>
738 </varlistentry>
739
740 <varlistentry id="ul">
741 <term><command>ul</command></term>
742 <listitem>
743 <para>A filter for translating underscores into escape sequences
744 indicating underlining for the terminal in use</para>
745 <indexterm zone="ch-system-util-linux-ng ul">
746 <primary sortas="b-ul">ul</primary>
747 </indexterm>
748 </listitem>
749 </varlistentry>
750
751 <varlistentry id="umount">
752 <term><command>umount</command></term>
753 <listitem>
754 <para>Disconnects a file system from the system's file tree</para>
755 <indexterm zone="ch-system-util-linux-ng umount">
756 <primary sortas="b-umount">umount</primary>
757 </indexterm>
758 </listitem>
759 </varlistentry>
760
761 <varlistentry id="whereis">
762 <term><command>whereis</command></term>
763 <listitem>
764 <para>Reports the location of the binary, source, and man page
765 for the given command</para>
766 <indexterm zone="ch-system-util-linux-ng whereis">
767 <primary sortas="b-whereis">whereis</primary>
768 </indexterm>
769 </listitem>
770 </varlistentry>
771
772 <varlistentry id="write">
773 <term><command>write</command></term>
774 <listitem>
775 <para>Sends a message to the given user <emphasis>if</emphasis> that
776 user has not disabled receipt of such messages</para>
777 <indexterm zone="ch-system-util-linux-ng write">
778 <primary sortas="b-write">write</primary>
779 </indexterm>
780 </listitem>
781 </varlistentry>
782
783 </variablelist>
784
785 </sect2>
786
787</sect1>
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