source: clfs-sysroot/BOOK/final-system/common/util-linux.xml @ c439b8a

Last change on this file since c439b8a was c439b8a, checked in by Manuel Canales Esparcia <manuel@…>, 17 years ago

Updated CLFS-Sysroot book sources to use DocBook?-XML DTD 4.5.
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-system-util-linux" role="wrap">
9  <?dbhtml filename="util-linux.html"?>
10
11  <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
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
39mkdir -pv ${CLFS}/var/lib/hwclock</userinput></screen>
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 the changes to the Linux 2.6.18 headers:</para>
52
53<screen os="p4"><userinput>patch -Np1 -i ../&util-linux-syscall_fixes-patch;</userinput></screen>
54
55   <para os="p5">The following patch fixes swapon.c - it tries to find the
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
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
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
126    CLFS-Bootscripts package:</para>
127
128<screen os="g"><userinput>make HAVE_KILL=yes HAVE_SLN=yes \
129CPUOPT="" ARCH="" CPU="" USE_TTY_GROUP=no DESTDIR=${CLFS} install
130mv -v ${CLFS}/usr/bin/logger ${CLFS}/bin</userinput></screen>
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,
143        fdisk, flock, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm,
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,
148        swapoff (link to swapon), swapon, tailf, tunelp, ul, umount, vidmode
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
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
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
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
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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