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Diffstat (limited to 'chapter06/util-linux.xml')
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1 files changed, 390 insertions, 108 deletions
diff --git a/chapter06/util-linux.xml b/chapter06/util-linux.xml index 01c553d31..a1b81dc92 100644 --- a/chapter06/util-linux.xml +++ b/chapter06/util-linux.xml @@ -78,248 +78,530 @@ installed again.</para></listitem> </sect2> -<sect2 id="contents-utillinux"><title>Contents of Util-linux</title> - -<para><emphasis>Installed programs</emphasis>: agetty, arch, blockdev, cal, -cfdisk, chkdupexe, col, colcrt, colrm, column, ctrlaltdel, cytune, ddate, -dmesg, elvtune, fdformat, fdisk, fsck.cramfs, fsck.minix, getopt, hexdump, -hwclock, ipcrm, ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, -mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, pg, pivot_root, -ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev, rootflags -(link to rdev), script, setfdprm, setsid, setterm, sfdisk, swapoff (link to -swapon), swapon, tunelp, ul, umount, vidmode (link to rdev), whereis and -write</para> +<sect2 id="contents-utillinux" role="content"><title>Contents of Util-linux</title> -</sect2> +<segmentedlist> +<segtitle>Installed programs</segtitle> +<seglistitem><seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt, +colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat, fdisk, +fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm, ipcs, isosize, line, +logger, look, losetup, mcookie, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, +more, mount, namei, pg, pivot_root, ramsize (link to rdev), raw, rdev, readprofile, +rename, renice, rev, rootflags (link to rdev), script, setfdprm, setsid, setterm, +sfdisk, swapoff (link to swapon), swapon, tunelp, ul, umount, vidmode (link to rdev), +whereis and write</seg></seglistitem> +</segmentedlist> -<sect2><title>Short descriptions</title> +<variablelist><title>Short descriptions</title> +<varlistentry> +<term id="agetty"><command>agetty</command></term> +<listitem> <indexterm zone="ch-system-util-linux agetty"><primary sortas="b-agetty">agetty</primary></indexterm> -<para id="agetty"><command>agetty</command> opens a tty port, prompts for a login name, +<para>opens a tty port, prompts for a login name, and then invokes the login program.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="arch"><command>arch</command></term> +<listitem> <indexterm zone="ch-system-util-linux arch"><primary sortas="b-arch">arch</primary></indexterm> -<para id="arch"><command>arch</command> reports the machine's architecture.</para> +<para>reports the machine's architecture.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="blockdev"><command>blockdev</command></term> +<listitem> <indexterm zone="ch-system-util-linux blockdev"><primary sortas="b-blockdev">blockdev</primary></indexterm> -<para id="blockdev"><command>blockdev</command> allows you to call block device ioctls -from the command line.</para> +<para>allows you to call block device ioctls from the command line.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="cal"><command>cal</command></term> +<listitem> <indexterm zone="ch-system-util-linux cal"><primary sortas="b-cal">cal</primary></indexterm> -<para id="cal"><command>cal</command> displays a simple calendar.</para> +<para>displays a simple calendar.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="cfdisk"><command>cfdisk</command></term> +<listitem> <indexterm zone="ch-system-util-linux cfdisk"><primary sortas="b-cfdisk">cfdisk</primary></indexterm> -<para id="cfdisk"><command>cfdisk</command> is used to manipulate the partition table -of the given device.</para> +<para>is used to manipulate the partition table of the given device.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="chkdupexe"><command>chkdupexe</command></term> +<listitem> <indexterm zone="ch-system-util-linux chkdupexe"><primary sortas="b-chkdupexe">chkdupexe</primary></indexterm> -<para id="chkdupexe"><command>chkdupexe</command> finds duplicate executables.</para> +<para>finds duplicate executables.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="col"><command>col</command></term> +<listitem> <indexterm zone="ch-system-util-linux col"><primary sortas="b-col">col</primary></indexterm> -<para id="col"><command>col</command> filters out reverse line feeds.</para> +<para>filters out reverse line feeds.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="colcrt"><command>colcrt</command></term> +<listitem> <indexterm zone="ch-system-util-linux colcrt"><primary sortas="b-colcrt">colcrt</primary></indexterm> -<para id="colcrt"><command>colcrt</command> is used to filter nroff output for terminals +<para>is used to filter nroff output for terminals that lack some capabilities such as overstriking and half-lines.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="colrm"><command>colrm</command></term> +<listitem> <indexterm zone="ch-system-util-linux colrm"><primary sortas="b-colrm">colrm</primary></indexterm> -<para id="colrm"><command>colrm</command> filters out the given columns.</para> +<para>filters out the given columns.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="column"><command>column</command></term> +<listitem> <indexterm zone="ch-system-util-linux column"><primary sortas="b-column">column</primary></indexterm> -<para id="column"><command>column</command> formats a given file into multiple -columns.</para> +<para>formats a given file into multiple columns.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="ctrlaltdel"><command>ctrlaltdel</command></term> +<listitem> <indexterm zone="ch-system-util-linux ctrlaltdel"><primary sortas="b-ctrlaltdel">ctrlaltdel</primary></indexterm> -<para id="ctrlaltdel"><command>ctrlaltdel</command> sets the function of the Ctrl+Alt+Del - key combination to a hard or a soft reset.</para> - +<para>sets the function of the Ctrl+Alt+Del key combination to a hard or a +soft reset.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term id="cytune"><command>cytune</command></term> +<listitem> <indexterm zone="ch-system-util-linux cytune"><primary sortas="b-cytune">cytune</primary></indexterm> -<para id="cytune"><command>cytune</command> was used to tune the parameters of the +<para>was used to tune the parameters of the serial line drivers for Cyclades cards.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="ddate"><command>ddate</command></term> +<listitem> <indexterm zone="ch-system-util-linux ddate"><primary sortas="b-ddate">ddate</primary></indexterm> -<para id="ddate"><command>ddate</command> gives the Discordian date, or converts the +<para>gives the Discordian date, or converts the given Gregorian date to a Discordian one.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="dmesg"><command>dmesg</command></term> +<listitem> <indexterm zone="ch-system-util-linux dmesg"><primary sortas="b-dmesg">dmesg</primary></indexterm> -<para id="dmesg"><command>dmesg</command> dumps the kernel boot messages.</para> +<para>dumps the kernel boot messages.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="elvtune"><command>elvtune</command></term> +<listitem> <indexterm zone="ch-system-util-linux elvtune"><primary sortas="b-elvtune">elvtune</primary></indexterm> -<para id="elvtune"><command>elvtune</command> can be used to tune the performance +<para>can be used to tune the performance and interactivity of a block device.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="fdformat"><command>fdformat</command></term> +<listitem> <indexterm zone="ch-system-util-linux fdformat"><primary sortas="b-fdformat">fdformat</primary></indexterm> -<para id="fdformat"><command>fdformat</command> low-level formats a floppy disk.</para> +<para>low-level formats a floppy disk.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="fdisk"><command>fdisk</command></term> +<listitem> <indexterm zone="ch-system-util-linux fdisk"><primary sortas="b-fdisk">fdisk</primary></indexterm> -<para id="fdisk"><command>fdisk</command> could be used to manipulate the partition -table of the given device.</para> +<para>could be used to manipulate the partition table of the given device.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="fsck.cramfs"><command>fsck.cramfs</command></term> +<listitem> <indexterm zone="ch-system-util-linux fsck.cramfs"><primary sortas="b-fsck.cramfs">fsck.cramfs</primary></indexterm> -<para id="fsck.cramfs"><command>fsck.cramfs</command> performs a consistency check on the +<para>performs a consistency check on the Cramfs file system on the given device.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="fsck.minix"><command>fsck.minix</command></term> +<listitem> <indexterm zone="ch-system-util-linux fsck.minix"><primary sortas="b-fsck.minix">fsck.minix</primary></indexterm> -<para id="fsck.minix"><command>fsck.minix</command> performs a consistency check on the +<para>performs a consistency check on the Minix file system on the given device.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="getopt"><command>getopt</command></term> +<listitem> <indexterm zone="ch-system-util-linux getopt"><primary sortas="b-getopt">getopt</primary></indexterm> -<para id="getopt"><command>getopt</command> parses options in the given command line.</para> +<para>parses options in the given command line.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="hexdump"><command>hexdump</command></term> +<listitem> <indexterm zone="ch-system-util-linux hexdump"><primary sortas="b-hexdump">hexdump</primary></indexterm> -<para id="hexdump"><command>hexdump</command> dumps the given file in hexadecimal, or -in another given format.</para> +<para>dumps the given file in hexadecimal, or in another given format.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="hwclock"><command>hwclock</command></term> +<listitem> <indexterm zone="ch-system-util-linux hwclock"><primary sortas="b-hwclock">hwclock</primary></indexterm> -<para id="hwclock"><command>hwclock</command> is used to read or set the system's -hardware clock, also called the RTC (Real-Time Clock) or BIOS (Basic Input-Output System) clock.</para> - +<para>is used to read or set the system's hardware clock, also called the RTC +(Real-Time Clock) or BIOS (Basic Input-Output System) clock.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term id="ipcrm"><command>ipcrm</command></term> +<listitem> <indexterm zone="ch-system-util-linux ipcrm"><primary sortas="b-ipcrm">ipcrm</primary></indexterm> -<para id="ipcrm"><command>ipcrm</command> removes the given IPC resource.</para> +<para>removes the given IPC resource.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="ipcs"><command>ipcs</command></term> +<listitem> <indexterm zone="ch-system-util-linux ipcs"><primary sortas="b-ipcs">ipcs</primary></indexterm> -<para id="ipcs"><command>ipcs</command> provides IPC status information.</para> +<para>provides IPC status information.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="isosize"><command>isosize</command></term> +<listitem> <indexterm zone="ch-system-util-linux isosize"><primary sortas="b-isosize">isosize</primary></indexterm> -<para id="isosize"><command>isosize</command> reports the size of an iso9660 -file system.</para> +<para>reports the size of an iso9660 file system.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="line"><command>line</command></term> +<listitem> <indexterm zone="ch-system-util-linux line"><primary sortas="b-line">line</primary></indexterm> -<para id="line"><command>line</command> copies a single line.</para> +<para>copies a single line.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="logger"><command>logger</command></term> +<listitem> <indexterm zone="ch-system-util-linux logger"><primary sortas="b-logger">logger</primary></indexterm> -<para id="logger"><command>logger</command> enters the given message into the system -log.</para> +<para>enters the given message into the system log.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="look"><command>look</command></term> +<listitem> <indexterm zone="ch-system-util-linux look"><primary sortas="b-look">look</primary></indexterm> -<para id="look"><command>look</command> displays lines that begin with the given -string.</para> +<para>displays lines that begin with the given string.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="losetup"><command>losetup</command></term> +<listitem> <indexterm zone="ch-system-util-linux losetup"><primary sortas="b-losetup">losetup</primary></indexterm> -<para id="losetup"><command>losetup</command> is used to set up and control loop devices.</para> +<para>is used to set up and control loop devices.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mcookie"><command>mcookie</command></term> +<listitem> <indexterm zone="ch-system-util-linux mcookie"><primary sortas="b-mcookie">mcookie</primary></indexterm> -<para id="mcookie"><command>mcookie</command> generates magic cookies, 128-bit random -hexadecimal numbers, for xauth.</para> - +<para>generates magic cookies, 128-bit random hexadecimal numbers, +for xauth.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term id="mkfs"><command>mkfs</command></term> +<listitem> <indexterm zone="ch-system-util-linux mkfs"><primary sortas="b-mkfs">mkfs</primary></indexterm> -<para id="mkfs"><command>mkfs</command> is used to build a file system on a device +<para>is used to build a file system on a device (usually a hard disk partition).</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mkfs.bfs"><command>mkfs.bfs</command></term> +<listitem> <indexterm zone="ch-system-util-linux mkfs.bfs"><primary sortas="b-mkfs.bfs">mkfs.bfs</primary></indexterm> -<para id="mkfs.bfs"><command>mkfs.bfs</command> creates an SCO (Santa Cruz Operations) bfs file system.</para> +<para>creates an SCO (Santa Cruz Operations) bfs file system.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mkfs.cramfs"><command>mkfs.cramfs</command></term> +<listitem> <indexterm zone="ch-system-util-linux mkfs.cramfs"><primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary></indexterm> -<para id="mkfs.cramfs"><command>mkfs.cramfs</command> creates a cramfs file system.</para> +<para>creates a cramfs file system.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mkfs.minix"><command>mkfs.minix</command></term> +<listitem> <indexterm zone="ch-system-util-linux mkfs.minix"><primary sortas="b-mkfs.minix">mkfs.minix</primary></indexterm> -<para id="mkfs.minix"><command>mkfs.minix</command> creates a Minix file system.</para> +<para>creates a Minix file system.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mkswap"><command>mkswap</command></term> +<listitem> <indexterm zone="ch-system-util-linux mkswap"><primary sortas="b-mkswap">mkswap</primary></indexterm> -<para id="mkswap"><command>mkswap</command> initializes the given device or file to be -used as a swap area.</para> +<para>initializes the given device or file to be used as a swap area.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="more"><command>more</command></term> +<listitem> <indexterm zone="ch-system-util-linux more"><primary sortas="b-more">more</primary></indexterm> -<para id="more"><command>more</command> is a filter for paging through text one +<para>is a filter for paging through text one screen full at a time. But less is much better.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="mount"><command>mount</command></term> +<listitem> <indexterm zone="ch-system-util-linux mount"><primary sortas="b-mount">mount</primary></indexterm> -<para id="mount"><command>mount</command> attaches the file system on the given device -to a specified directory (thus hiding the contents of that directory) in the file-system tree.</para> - +<para>attaches the file system on the given device to a specified directory (thus +hiding the contents of that directory) in the file-system tree.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term id="namei"><command>namei</command></term> +<listitem> <indexterm zone="ch-system-util-linux namei"><primary sortas="b-namei">namei</primary></indexterm> -<para id="namei"><command>namei</command> shows the symbolic links in the given -pathnames.</para> +<para>shows the symbolic links in the given pathnames.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="pg"><command>pg</command></term> +<listitem> <indexterm zone="ch-system-util-linux pg"><primary sortas="b-pg">pg</primary></indexterm> -<para id="pg"><command>pg</command> displays a text file one screen full at a -time.</para> +<para>displays a text file one screen full at a time.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="pivot_root"><command>pivot_root</command></term> +<listitem> <indexterm zone="ch-system-util-linux pivot_root"><primary sortas="b-pivot_root">pivot_root</primary></indexterm> -<para id="pivot_root"><command>pivot_root</command> makes the given file system the new +<para>makes the given file system the new root file system of the current process.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="ramsize"><command>ramsize</command></term> +<listitem> <indexterm zone="ch-system-util-linux ramsize"><primary sortas="b-ramsize">ramsize</primary></indexterm> -<para id="ramsize"><command>ramsize</command> is used to set the size of the -RAM disk in a bootable image.</para> +<para>is used to set the size of the RAM disk in a bootable image.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="rdev"><command>rdev</command></term> +<listitem> <indexterm zone="ch-system-util-linux rdev"><primary sortas="b-rdev">rdev</primary></indexterm> -<para id="rdev"><command>rdev</command> is used to query and set the root +<para>is used to query and set the root device and other things in a bootable image.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="readprofile"><command>readprofile</command></term> +<listitem> <indexterm zone="ch-system-util-linux readprofile"><primary sortas="b-readprofile">readprofile</primary></indexterm> -<para id="readprofile"><command>readprofile</command> reads kernel profiling information.</para> +<para>reads kernel profiling information.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="rename"><command>rename</command></term> +<listitem> <indexterm zone="ch-system-util-linux rename"><primary sortas="b-rename">rename</primary></indexterm> -<para id="rename"><command>rename</command> renames the given files, replacing a given -string with another.</para> +<para>renames the given files, replacing a given string with another.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="renice"><command>renice</command></term> +<listitem> <indexterm zone="ch-system-util-linux renice"><primary sortas="b-renice">renice</primary></indexterm> -<para id="renice"><command>renice</command> is used to alter the priority of running -processes.</para> +<para>is used to alter the priority of running processes.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="rev"><command>rev</command></term> +<listitem> <indexterm zone="ch-system-util-linux rev"><primary sortas="b-rev">rev</primary></indexterm> -<para id="rev"><command>rev</command> reverses the lines of a given file.</para> +<para>reverses the lines of a given file.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="rootflags"><command>rootflags</command></term> +<listitem> <indexterm zone="ch-system-util-linux rootflags"><primary sortas="b-rootflags">rootflags</primary></indexterm> -<para id="rootflags"><command>rootflags</command> is used to set the rootflags -in a bootable image.</para> +<para>is used to set the rootflags in a bootable image.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="script"><command>script</command></term> +<listitem> <indexterm zone="ch-system-util-linux script"><primary sortas="b-script">script</primary></indexterm> -<para id="script"><command>script</command> makes a typescript of a terminal -session, of everything printed to the terminal.</para> - +<para>makes a typescript of a terminal session, of everything printed to +the terminal.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term id="setfdprm"><command>setfdprm</command></term> +<listitem> <indexterm zone="ch-system-util-linux setfdprm"><primary sortas="b-setfdprm">setfdprm</primary></indexterm> -<para id="setfdprm"><command>setfdprm</command> sets user-provided floppy disk -parameters.</para> +<para>sets user-provided floppy disk parameters.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="setsid"><command>setsid</command></term> +<listitem> <indexterm zone="ch-system-util-linux setsid"><primary sortas="b-setsid">setsid</primary></indexterm> -<para id="setsid"><command>setsid</command> runs the given program in a new session.</para> +<para>runs the given program in a new session.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="setterm"><command>setterm</command></term> +<listitem> <indexterm zone="ch-system-util-linux setterm"><primary sortas="b-setterm">setterm</primary></indexterm> -<para id="setterm"><command>setterm</command> is used to set terminal attributes.</para> +<para>is used to set terminal attributes.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="sfdisk"><command>sfdisk</command></term> +<listitem> <indexterm zone="ch-system-util-linux sfdisk"><primary sortas="b-sfdisk">sfdisk</primary></indexterm> -<para id="sfdisk"><command>sfdisk</command> is a disk partition table manipulator.</para> +<para>is a disk partition table manipulator.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="swapdev"><command>swapdev</command></term> +<listitem> <indexterm zone="ch-system-util-linux swapdev"><primary sortas="b-swapdev">swapdev</primary></indexterm> -<para id="swapdev"><command>swapdev</command> is used to set the swap device -in a bootable image.</para> +<para>is used to set the swap device in a bootable image.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="swapoff"><command>swapoff</command></term> +<listitem> <indexterm zone="ch-system-util-linux swapoff"><primary sortas="b-swapoff">swapoff</primary></indexterm> -<para id="swapoff"><command>swapoff</command> disables devices and files for paging -and swapping.</para> +<para>disables devices and files for paging and swapping.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="swapon"><command>swapon</command></term> +<listitem> <indexterm zone="ch-system-util-linux swapon"><primary sortas="b-swapon">swapon</primary></indexterm> -<para id="swapon"><command>swapon</command> enables devices and files for paging -and swapping.</para> +<para>enables devices and files for paging and swapping.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="tunelp"><command>tunelp</command></term> +<listitem> <indexterm zone="ch-system-util-linux tunelp"><primary sortas="b-tunelp">tunelp</primary></indexterm> -<para id="tunelp"><command>tunelp</command> is used to tune the parameters of the -line printer.</para> +<para>is used to tune the parameters of the line printer.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="ul"><command>ul</command></term> +<listitem> <indexterm zone="ch-system-util-linux ul"><primary sortas="b-ul">ul</primary></indexterm> -<para id="ul"><command>ul</command> is a filter for translating underscores into +<para>is a filter for translating underscores into escape sequences indicating underlining for the terminal in use.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="umount"><command>umount</command></term> +<listitem> <indexterm zone="ch-system-util-linux umount"><primary sortas="b-umount">umount</primary></indexterm> -<para id="umount"><command>umount</command> disconnects a file system from the -system's file tree.</para> +<para>disconnects a file system from the system's file tree.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="vidmode"><command>vidmode</command></term> +<listitem> <indexterm zone="ch-system-util-linux vidmode"><primary sortas="b-vidmode">vidmode</primary></indexterm> -<para id="vidmode"><command>vidmode</command> could be used to set the video mode -in a bootable image.</para> +<para>could be used to set the video mode in a bootable image.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="whereis"><command>whereis</command></term> +<listitem> <indexterm zone="ch-system-util-linux whereis"><primary sortas="b-whereis">whereis</primary></indexterm> -<para id="whereis"><command>whereis</command> reports the location of binary, the +<para>reports the location of binary, the source, and the manual page for the given command.</para> +</listitem> +</varlistentry> +<varlistentry> +<term id="write"><command>write</command></term> +<listitem> <indexterm zone="ch-system-util-linux write"><primary sortas="b-write">write</primary></indexterm> -<para id="write"><command>write</command> sends a message to the given user, +<para>sends a message to the given user, <emphasis>if</emphasis> that user has not disabled such messages.</para> +</listitem> +</varlistentry> +</variablelist> </sect2> - - </sect1> |