source: clfs-sysroot/BOOK/final-system/common/util-linux.xml@ f1b7187

Last change on this file since f1b7187 was 5fe131b, checked in by Joe Ciccone <jciccone@…>, 18 years ago

New patch for util-linux, replaces GCC 4 Fixes, the new
patches fixes the same issues, and removes the use of syscalls. Syscalls were
removed the unistd.h during santization.
  • Property mode set to 100644
File size: 28.1 KB
RevLine 
[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
[5fe131b]51 <para os="p3">The following patch fixes build issues the changes to the Linux 2.6.18 headers:</para>
[02095ae]52
[5fe131b]53<screen os="p4"><userinput>patch -Np1 -i ../&util-linux-syscall_fixes-patch;</userinput></screen>
[02095ae]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
[f01a21b]60 <para os="p7">Due to a change in headers some util-linux will not build.
61 This patch will change the utilization of llseek to lseek. This change is
62 in the new release of util-linux:</para>
63
64<screen os="p8"><userinput>patch -Np1 -i ../&util-linux-lseek-patch;</userinput></screen>
65
[02095ae]66 <para os="s1">The following sed prevents the installed files from being
67 owned by root</para>
68
69<screen os="s2"><userinput>cp MCONFIG{,.orig}
70sed -e "s/-o root//" MCONFIG.orig > MCONFIG</userinput></screen>
71
72 <para os="a">Prepare Util-linux for compilation:</para>
73
74<screen os="b"><userinput>./configure</userinput></screen>
75
76 <para os="c">Compile the package:</para>
77
78<screen os="d"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
79CPUOPT="" ARCH="" CPU=""</userinput></screen>
80
81 <variablelist os="e">
82 <title>The meaning of the make parameters:</title>
83
84 <varlistentry os="e1">
85 <term><parameter>HAVE_KILL=yes</parameter></term>
86 <listitem>
87 <para>This prevents the <command>kill</command> program (already
88 installed by Procps) from being built and installed again.</para>
89 </listitem>
90 </varlistentry>
91
92 <varlistentry os="e2">
93 <term><parameter>HAVE_SLN=yes</parameter></term>
94 <listitem>
95 <para>This prevents the <command>sln</command> program (a
96 statically linked version of <command>ln</command> already installed
97 by Glibc) from being built and installed again.</para>
98 </listitem>
99 </varlistentry>
100
101 <varlistentry os="e3">
102 <term><parameter>CPUOPT=""</parameter></term>
103 <listitem>
104 <para>This disables any compiler optimizations by CPU type.</para>
105 </listitem>
106 </varlistentry>
107
108 <varlistentry os="e4">
109 <term><parameter>ARCH=""</parameter></term>
110 <listitem>
111 <para>This disables the detection of the architecture.</para>
112 </listitem>
113 </varlistentry>
114
115 <varlistentry os="e5">
116 <term><parameter>CPU=""</parameter></term>
117 <listitem>
118 <para>This disables the detection of the CPU.</para>
119 </listitem>
120 </varlistentry>
121
122 </variablelist>
123
124 <para os="f">Install the package and move the <command>logger</command> binary
125 to <filename class="directory">/bin</filename> as it is needed by the
[1a09536]126 CLFS-Bootscripts package:</para>
[02095ae]127
128<screen os="g"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
[586feb7]129CPUOPT="" ARCH="" CPU="" USE_TTY_GROUP=no DESTDIR=${CLFS} install
130mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
[02095ae]131
132 </sect2>
133
134 <sect2 id="contents-util-linux" role="content">
135 <title>Contents of Util-linux</title>
136
137 <segmentedlist>
138 <segtitle>Installed programs</segtitle>
139
140 <seglistitem>
141 <seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
142 colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat,
[82b662d]143 fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
[02095ae]144 ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs,
145 mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root,
146 ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev,
147 rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk,
[82b662d]148 swapoff (link to swapon), swapon, tailf, tunelp, ul, umount, vidmode
[02095ae]149 (link to rdev), whereis, and write</seg>
150 </seglistitem>
151 </segmentedlist>
152
153 <variablelist>
154 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
155 <?dbfo list-presentation="list"?>
156 <?dbhtml list-presentation="table"?>
157
158 <varlistentry id="agetty">
159 <term><command>agetty</command></term>
160 <listitem>
161 <para>Opens a tty port, prompts for a login name,
162 and then invokes the <command>login</command> program</para>
163 <indexterm zone="ch-system-util-linux agetty">
164 <primary sortas="b-agetty">agetty</primary>
165 </indexterm>
166 </listitem>
167 </varlistentry>
168
169 <varlistentry id="arch">
170 <term><command>arch</command></term>
171 <listitem>
172 <para>Reports the machine's architecture</para>
173 <indexterm zone="ch-system-util-linux arch">
174 <primary sortas="b-arch">arch</primary>
175 </indexterm>
176 </listitem>
177 </varlistentry>
178
179 <varlistentry id="blockdev">
180 <term><command>blockdev</command></term>
181 <listitem>
182 <para>Allows users to call block device ioctls from the command
183 line</para>
184 <indexterm zone="ch-system-util-linux blockdev">
185 <primary sortas="b-blockdev">blockdev</primary>
186 </indexterm>
187 </listitem>
188 </varlistentry>
189
190 <varlistentry id="cal">
191 <term><command>cal</command></term>
192 <listitem>
193 <para>Displays a simple calendar</para>
194 <indexterm zone="ch-system-util-linux cal">
195 <primary sortas="b-cal">cal</primary>
196 </indexterm>
197 </listitem>
198 </varlistentry>
199
200 <varlistentry id="cfdisk">
201 <term><command>cfdisk</command></term>
202 <listitem>
203 <para>Manipulates the partition table of the given device</para>
204 <indexterm zone="ch-system-util-linux cfdisk">
205 <primary sortas="b-cfdisk">cfdisk</primary>
206 </indexterm>
207 </listitem>
208 </varlistentry>
209
210 <varlistentry id="chkdupexe">
211 <term><command>chkdupexe</command></term>
212 <listitem>
213 <para>Finds duplicate executables</para>
214 <indexterm zone="ch-system-util-linux chkdupexe">
215 <primary sortas="b-chkdupexe">chkdupexe</primary>
216 </indexterm>
217 </listitem>
218 </varlistentry>
219
220 <varlistentry id="col">
221 <term><command>col</command></term>
222 <listitem>
223 <para>Filters out reverse line feeds</para>
224 <indexterm zone="ch-system-util-linux col">
225 <primary sortas="b-col">col</primary>
226 </indexterm>
227 </listitem>
228 </varlistentry>
229
230 <varlistentry id="colcrt">
231 <term><command>colcrt</command></term>
232 <listitem>
233 <para>Filters <command>nroff</command> output for terminals
234 that lack some capabilities, such as overstriking and half-lines</para>
235 <indexterm zone="ch-system-util-linux colcrt">
236 <primary sortas="b-colcrt">colcrt</primary>
237 </indexterm>
238 </listitem>
239 </varlistentry>
240
241 <varlistentry id="colrm">
242 <term><command>colrm</command></term>
243 <listitem>
244 <para>Filters out the given columns</para>
245 <indexterm zone="ch-system-util-linux colrm">
246 <primary sortas="b-colrm">colrm</primary>
247 </indexterm>
248 </listitem>
249 </varlistentry>
250
251 <varlistentry id="column">
252 <term><command>column</command></term>
253 <listitem>
254 <para>Formats a given file into multiple columns</para>
255 <indexterm zone="ch-system-util-linux column">
256 <primary sortas="b-column">column</primary>
257 </indexterm>
258 </listitem>
259 </varlistentry>
260
261 <varlistentry id="ctrlaltdel">
262 <term><command>ctrlaltdel</command></term>
263 <listitem>
264 <para>Sets the function of the Ctrl+Alt+Del key combination to a
265 hard or a soft reset</para>
266 <indexterm zone="ch-system-util-linux ctrlaltdel">
267 <primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
268 </indexterm>
269 </listitem>
270 </varlistentry>
271
272 <varlistentry id="cytune">
273 <term><command>cytune</command></term>
274 <listitem>
275 <para>Tunes the parameters of the serial line drivers for
276 Cyclades cards</para>
277 <indexterm zone="ch-system-util-linux cytune">
278 <primary sortas="b-cytune">cytune</primary>
279 </indexterm>
280 </listitem>
281 </varlistentry>
282
283 <varlistentry id="ddate">
284 <term><command>ddate</command></term>
285 <listitem>
286 <para>Gives the Discordian date or converts the given Gregorian date
287 to a Discordian one</para>
288 <indexterm zone="ch-system-util-linux ddate">
289 <primary sortas="b-ddate">ddate</primary>
290 </indexterm>
291 </listitem>
292 </varlistentry>
293
294 <varlistentry id="dmesg">
295 <term><command>dmesg</command></term>
296 <listitem>
297 <para>Dumps the kernel boot messages</para>
298 <indexterm zone="ch-system-util-linux dmesg">
299 <primary sortas="b-dmesg">dmesg</primary>
300 </indexterm>
301 </listitem>
302 </varlistentry>
303
304 <varlistentry id="elvtune">
305 <term><command>elvtune</command></term>
306 <listitem>
307 <para>Tunes the performance and interactivity of a block
308 device</para>
309 <indexterm zone="ch-system-util-linux elvtune">
310 <primary sortas="b-elvtune">elvtune</primary>
311 </indexterm>
312 </listitem>
313 </varlistentry>
314
315 <varlistentry id="fdformat">
316 <term><command>fdformat</command></term>
317 <listitem>
318 <para>Low-level formats a floppy disk</para>
319 <indexterm zone="ch-system-util-linux fdformat">
320 <primary sortas="b-fdformat">fdformat</primary>
321 </indexterm>
322 </listitem>
323 </varlistentry>
324
325 <varlistentry id="fdisk">
326 <term><command>fdisk</command></term>
327 <listitem>
328 <para>Manipulates the partition table of the given device</para>
329 <indexterm zone="ch-system-util-linux fdisk">
330 <primary sortas="b-fdisk">fdisk</primary>
331 </indexterm>
332 </listitem>
333 </varlistentry>
334
[82b662d]335 <varlistentry id="flock">
336 <term><command>flock</command></term>
337 <listitem>
338 <para>Acquires a file lock and then executes a command with the lock
339 held</para>
340 <indexterm zone="ch-system-util-linux flock">
341 <primary sortas="b-flock">flock</primary>
342 </indexterm>
343 </listitem>
344 </varlistentry>
345
[02095ae]346 <varlistentry id="fsck.cramfs">
347 <term><command>fsck.cramfs</command></term>
348 <listitem>
349 <para>Performs a consistency check on the Cramfs file system on the
350 given device</para>
351 <indexterm zone="ch-system-util-linux fsck.cramfs">
352 <primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
353 </indexterm>
354 </listitem>
355 </varlistentry>
356
357 <varlistentry id="fsck.minix">
358 <term><command>fsck.minix</command></term>
359 <listitem>
360 <para>Performs a consistency check on the Minix file system on the
361 given device</para>
362 <indexterm zone="ch-system-util-linux fsck.minix">
363 <primary sortas="b-fsck.minix">fsck.minix</primary>
364 </indexterm>
365 </listitem>
366 </varlistentry>
367
368 <varlistentry id="getopt">
369 <term><command>getopt</command></term>
370 <listitem>
371 <para>Parses options in the given command line</para>
372 <indexterm zone="ch-system-util-linux getopt">
373 <primary sortas="b-getopt">getopt</primary>
374 </indexterm>
375 </listitem>
376 </varlistentry>
377
378 <varlistentry id="hexdump">
379 <term><command>hexdump</command></term>
380 <listitem>
381 <para>Dumps the given file in hexadecimal or in another given
382 format</para>
383 <indexterm zone="ch-system-util-linux hexdump">
384 <primary sortas="b-hexdump">hexdump</primary>
385 </indexterm>
386 </listitem>
387 </varlistentry>
388
389 <varlistentry id="hwclock">
390 <term><command>hwclock</command></term>
391 <listitem>
392 <para>Reads or sets the system's hardware clock, also called
393 the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
394 clock</para>
395 <indexterm zone="ch-system-util-linux hwclock">
396 <primary sortas="b-hwclock">hwclock</primary>
397 </indexterm>
398 </listitem>
399 </varlistentry>
400
401 <varlistentry id="ipcrm">
402 <term><command>ipcrm</command></term>
403 <listitem>
404 <para>Removes the given Inter-Process Communication (IPC) resource</para>
405 <indexterm zone="ch-system-util-linux ipcrm">
406 <primary sortas="b-ipcrm">ipcrm</primary>
407 </indexterm>
408 </listitem>
409 </varlistentry>
410
411 <varlistentry id="ipcs">
412 <term><command>ipcs</command></term>
413 <listitem>
414 <para>Provides IPC status information</para>
415 <indexterm zone="ch-system-util-linux ipcs">
416 <primary sortas="b-ipcs">ipcs</primary>
417 </indexterm>
418 </listitem>
419 </varlistentry>
420
421 <varlistentry id="isosize">
422 <term><command>isosize</command></term>
423 <listitem>
424 <para>Reports the size of an iso9660 file system</para>
425 <indexterm zone="ch-system-util-linux isosize">
426 <primary sortas="b-isosize">isosize</primary>
427 </indexterm>
428 </listitem>
429 </varlistentry>
430
431 <varlistentry id="line">
432 <term><command>line</command></term>
433 <listitem>
434 <para>Copies a single line</para>
435 <indexterm zone="ch-system-util-linux line">
436 <primary sortas="b-line">line</primary>
437 </indexterm>
438 </listitem>
439 </varlistentry>
440
441 <varlistentry id="logger">
442 <term><command>logger</command></term>
443 <listitem>
444 <para>Enters the given message into the system log</para>
445 <indexterm zone="ch-system-util-linux logger">
446 <primary sortas="b-logger">logger</primary>
447 </indexterm>
448 </listitem>
449 </varlistentry>
450
451 <varlistentry id="look">
452 <term><command>look</command></term>
453 <listitem>
454 <para>Displays lines that begin with the given string</para>
455 <indexterm zone="ch-system-util-linux look">
456 <primary sortas="b-look">look</primary>
457 </indexterm>
458 </listitem>
459 </varlistentry>
460
461 <varlistentry id="losetup">
462 <term><command>losetup</command></term>
463 <listitem>
464 <para>Sets up and controls loop devices</para>
465 <indexterm zone="ch-system-util-linux losetup">
466 <primary sortas="b-losetup">losetup</primary>
467 </indexterm>
468 </listitem>
469 </varlistentry>
470
471 <varlistentry id="mcookie">
472 <term><command>mcookie</command></term>
473 <listitem>
474 <para>Generates magic cookies (128-bit random hexadecimal numbers) for
475 <command>xauth</command></para>
476 <indexterm zone="ch-system-util-linux mcookie">
477 <primary sortas="b-mcookie">mcookie</primary>
478 </indexterm>
479 </listitem>
480 </varlistentry>
481
482 <varlistentry id="mkfs">
483 <term><command>mkfs</command></term>
484 <listitem>
485 <para>Builds a file system on a device (usually a hard disk
486 partition)</para>
487 <indexterm zone="ch-system-util-linux mkfs">
488 <primary sortas="b-mkfs">mkfs</primary>
489 </indexterm>
490 </listitem>
491 </varlistentry>
492
493 <varlistentry id="mkfs.bfs">
494 <term><command>mkfs.bfs</command></term>
495 <listitem>
496 <para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
497 <indexterm zone="ch-system-util-linux mkfs.bfs">
498 <primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
499 </indexterm>
500 </listitem>
501 </varlistentry>
502
503 <varlistentry id="mkfs.cramfs">
504 <term><command>mkfs.cramfs</command></term>
505 <listitem>
506 <para>Creates a cramfs file system</para>
507 <indexterm zone="ch-system-util-linux mkfs.cramfs">
508 <primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
509 </indexterm>
510 </listitem>
511 </varlistentry>
512
513 <varlistentry id="mkfs.minix">
514 <term><command>mkfs.minix</command></term>
515 <listitem>
516 <para>Creates a Minix file system</para>
517 <indexterm zone="ch-system-util-linux mkfs.minix">
518 <primary sortas="b-mkfs.minix">mkfs.minix</primary>
519 </indexterm>
520 </listitem>
521 </varlistentry>
522
523 <varlistentry id="mkswap">
524 <term><command>mkswap</command></term>
525 <listitem>
526 <para>Initializes the given device or file to be used as a swap
527 area</para>
528 <indexterm zone="ch-system-util-linux mkswap">
529 <primary sortas="b-mkswap">mkswap</primary>
530 </indexterm>
531 </listitem>
532 </varlistentry>
533
534 <varlistentry id="more">
535 <term><command>more</command></term>
536 <listitem>
537 <para>A filter for paging through text one screen at a time</para>
538 <indexterm zone="ch-system-util-linux more">
539 <primary sortas="b-more">more</primary>
540 </indexterm>
541 </listitem>
542 </varlistentry>
543
544 <varlistentry id="mount">
545 <term><command>mount</command></term>
546 <listitem>
547 <para>Attaches the file system on the given device to a specified
548 directory in the file-system tree</para>
549 <indexterm zone="ch-system-util-linux mount">
550 <primary sortas="b-mount">mount</primary>
551 </indexterm>
552 </listitem>
553 </varlistentry>
554
555 <varlistentry id="namei">
556 <term><command>namei</command></term>
557 <listitem>
558 <para>Shows the symbolic links in the given pathnames</para>
559 <indexterm zone="ch-system-util-linux namei">
560 <primary sortas="b-namei">namei</primary>
561 </indexterm>
562 </listitem>
563 </varlistentry>
564
565 <varlistentry id="pg">
566 <term><command>pg</command></term>
567 <listitem>
568 <para>Displays a text file one screen full at a time</para>
569 <indexterm zone="ch-system-util-linux pg">
570 <primary sortas="b-pg">pg</primary>
571 </indexterm>
572 </listitem>
573 </varlistentry>
574
575 <varlistentry id="pivot_root">
576 <term><command>pivot_root</command></term>
577 <listitem>
578 <para>Makes the given file system the new root file system of the
579 current process</para>
580 <indexterm zone="ch-system-util-linux pivot_root">
581 <primary sortas="b-pivot_root">pivot_root</primary>
582 </indexterm>
583 </listitem>
584 </varlistentry>
585
586 <varlistentry id="ramsize">
587 <term><command>ramsize</command></term>
588 <listitem>
589 <para>Sets the size of the RAM disk in a bootable image</para>
590 <indexterm zone="ch-system-util-linux ramsize">
591 <primary sortas="b-ramsize">ramsize</primary>
592 </indexterm>
593 </listitem>
594 </varlistentry>
595
596 <varlistentry id="raw">
597 <term><command>raw</command></term>
598 <listitem>
599 <para>Used to bind a Linux raw character device to a block
600 device</para>
601 <indexterm zone="ch-system-util-linux raw">
602 <primary sortas="b-raw">raw</primary>
603 </indexterm>
604 </listitem>
605 </varlistentry>
606
607 <varlistentry id="rdev">
608 <term><command>rdev</command></term>
609 <listitem>
610 <para>Queries and sets the root device, among other things, in a
611 bootable image</para>
612 <indexterm zone="ch-system-util-linux rdev">
613 <primary sortas="b-rdev">rdev</primary>
614 </indexterm>
615 </listitem>
616 </varlistentry>
617
618 <varlistentry id="readprofile">
619 <term><command>readprofile</command></term>
620 <listitem>
621 <para>Reads kernel profiling information</para>
622 <indexterm zone="ch-system-util-linux readprofile">
623 <primary sortas="b-readprofile">readprofile</primary>
624 </indexterm>
625 </listitem>
626 </varlistentry>
627
628 <varlistentry id="rename">
629 <term><command>rename</command></term>
630 <listitem>
631 <para>Renames the given files, replacing a given string with
632 another</para>
633 <indexterm zone="ch-system-util-linux rename">
634 <primary sortas="b-rename">rename</primary>
635 </indexterm>
636 </listitem>
637 </varlistentry>
638
639 <varlistentry id="renice">
640 <term><command>renice</command></term>
641 <listitem>
642 <para>Alters the priority of running processes</para>
643 <indexterm zone="ch-system-util-linux renice">
644 <primary sortas="b-renice">renice</primary>
645 </indexterm>
646 </listitem>
647 </varlistentry>
648
649 <varlistentry id="rev">
650 <term><command>rev</command></term>
651 <listitem>
652 <para>Reverses the lines of a given file</para>
653 <indexterm zone="ch-system-util-linux rev">
654 <primary sortas="b-rev">rev</primary>
655 </indexterm>
656 </listitem>
657 </varlistentry>
658
659 <varlistentry id="rootflags">
660 <term><command>rootflags</command></term>
661 <listitem>
662 <para>Sets the rootflags in a bootable image</para>
663 <indexterm zone="ch-system-util-linux rootflags">
664 <primary sortas="b-rootflags">rootflags</primary>
665 </indexterm>
666 </listitem>
667 </varlistentry>
668
669 <varlistentry id="script">
670 <term><command>script</command></term>
671 <listitem>
672 <para>Makes a typescript of a terminal session</para>
673 <indexterm zone="ch-system-util-linux script">
674 <primary sortas="b-script">script</primary>
675 </indexterm>
676 </listitem>
677 </varlistentry>
678
679 <varlistentry id="setfdprm">
680 <term><command>setfdprm</command></term>
681 <listitem>
682 <para>Sets user-provided floppy disk parameters</para>
683 <indexterm zone="ch-system-util-linux setfdprm">
684 <primary sortas="b-setfdprm">setfdprm</primary>
685 </indexterm>
686 </listitem>
687 </varlistentry>
688
689 <varlistentry id="setsid">
690 <term><command>setsid</command></term>
691 <listitem>
692 <para>Runs the given program in a new session</para>
693 <indexterm zone="ch-system-util-linux setsid">
694 <primary sortas="b-setsid">setsid</primary>
695 </indexterm>
696 </listitem>
697 </varlistentry>
698
699 <varlistentry id="setterm">
700 <term><command>setterm</command></term>
701 <listitem>
702 <para>Sets terminal attributes</para>
703 <indexterm zone="ch-system-util-linux setterm">
704 <primary sortas="b-setterm">setterm</primary>
705 </indexterm>
706 </listitem>
707 </varlistentry>
708
709 <varlistentry id="sfdisk">
710 <term><command>sfdisk</command></term>
711 <listitem>
712 <para>A disk partition table manipulator</para>
713 <indexterm zone="ch-system-util-linux sfdisk">
714 <primary sortas="b-sfdisk">sfdisk</primary>
715 </indexterm>
716 </listitem>
717 </varlistentry>
718
719 <varlistentry id="swapoff">
720 <term><command>swapoff</command></term>
721 <listitem>
722 <para>Disables devices and files for paging and swapping</para>
723 <indexterm zone="ch-system-util-linux swapoff">
724 <primary sortas="b-swapoff">swapoff</primary>
725 </indexterm>
726 </listitem>
727 </varlistentry>
728
729 <varlistentry id="swapon">
730 <term><command>swapon</command></term>
731 <listitem>
732 <para>Enables devices and files for paging and swapping and
733 lists the devices and files currently in use</para>
734 <indexterm zone="ch-system-util-linux swapon">
735 <primary sortas="b-swapon">swapon</primary>
736 </indexterm>
737 </listitem>
738 </varlistentry>
739
[82b662d]740 <varlistentry id="tailf">
741 <term><command>tailf</command></term>
742 <listitem>
743 <para>Tracks the growth of a log file. Displays the last 10 lines
744 of a log file, then continues displaying any new entries in the
745 log file as they are created</para>
746 <indexterm zone="ch-system-util-linux tailf">
747 <primary sortas="b-tailf">tailf</primary>
748 </indexterm>
749 </listitem>
750 </varlistentry>
751
[02095ae]752 <varlistentry id="tunelp">
753 <term><command>tunelp</command></term>
754 <listitem>
755 <para>Tunes the parameters of the line printer</para>
756 <indexterm zone="ch-system-util-linux tunelp">
757 <primary sortas="b-tunelp">tunelp</primary>
758 </indexterm>
759 </listitem>
760 </varlistentry>
761
762 <varlistentry id="ul">
763 <term><command>ul</command></term>
764 <listitem>
765 <para>A filter for translating underscores into escape sequences
766 indicating underlining for the terminal in use</para>
767 <indexterm zone="ch-system-util-linux ul">
768 <primary sortas="b-ul">ul</primary>
769 </indexterm>
770 </listitem>
771 </varlistentry>
772
773 <varlistentry id="umount">
774 <term><command>umount</command></term>
775 <listitem>
776 <para>Disconnects a file system from the system's file tree</para>
777 <indexterm zone="ch-system-util-linux umount">
778 <primary sortas="b-umount">umount</primary>
779 </indexterm>
780 </listitem>
781 </varlistentry>
782
783 <varlistentry id="vidmode">
784 <term><command>vidmode</command></term>
785 <listitem>
786 <para>Sets the video mode in a bootable image</para>
787 <indexterm zone="ch-system-util-linux vidmode">
788 <primary sortas="b-vidmode">vidmode</primary>
789 </indexterm>
790 </listitem>
791 </varlistentry>
792
793 <varlistentry id="whereis">
794 <term><command>whereis</command></term>
795 <listitem>
796 <para>Reports the location of the binary, source, and man page
797 for the given command</para>
798 <indexterm zone="ch-system-util-linux whereis">
799 <primary sortas="b-whereis">whereis</primary>
800 </indexterm>
801 </listitem>
802 </varlistentry>
803
804 <varlistentry id="write">
805 <term><command>write</command></term>
806 <listitem>
807 <para>Sends a message to the given user <emphasis>if</emphasis> that
808 user has not disabled receipt of such messages</para>
809 <indexterm zone="ch-system-util-linux write">
810 <primary sortas="b-write">write</primary>
811 </indexterm>
812 </listitem>
813 </varlistentry>
814
815 </variablelist>
816
817 </sect2>
818
819</sect1>
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