lfs-book/chapter06/psmisc.xml

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  <!ENTITY % general-entities SYSTEM "../general.ent">
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<sect1 id="ch-system-psmisc" role="wrap">
<title>Psmisc-&psmisc-version;</title>
<?dbhtml filename="psmisc.html"?>

<indexterm zone="ch-system-psmisc"><primary sortas="a-Psmisc">Psmisc</primary></indexterm>

<sect2 role="package"><title/>
<para>The Psmisc package contains programs for displaying information on
processes.</para>

<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem><seg>0.1 SBU</seg><seg>2.2 MB</seg></seglistitem>
</segmentedlist>

<segmentedlist>
<segtitle>Psmisc installation depends on</segtitle>
<seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
GCC, Gettext, Glibc, Grep, Make, Ncurses, and Sed</seg></seglistitem>
</segmentedlist>
</sect2>

<sect2 role="installation">
<title>Installation of Psmisc</title>

<para>Prepare Psmisc for compilation:</para>

<screen><userinput>./configure --prefix=/usr --exec-prefix=""</userinput></screen>

<para>The meaning of the configure option:</para>

<variablelist>
<varlistentry>
<term><parameter>--exec-prefix=""</parameter></term>
<listitem><para>This causes the binaries to be installed in <filename
class="directory">/bin</filename> instead of <filename
class="directory">/usr/bin</filename>. Because the Psmisc programs are
often used in bootscripts, they should be available when the <filename
class="directory">/usr</filename> file system is not
mounted.</para></listitem>
</varlistentry>
</variablelist>

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>Install the package:</para>

<screen><userinput>make install</userinput></screen>

<para>There is no reason for the <command>pstree</command> and
<command>pstree.x11</command> programs to reside in <filename
class="directory">/bin</filename>. Therefore, move them to <filename
class="directory">/usr/bin</filename>. Also, there is no need for
<command>pstree.x11</command> to exist as a separate program. Make it
a symbolic link to <command>pstree</command> instead:</para>

<screen><userinput>mv /bin/pstree* /usr/bin
ln -sf pstree /usr/bin/pstree.x11</userinput></screen>

<para>By default, Psmisc's <command>pidof</command> program is not
installed. This usually is not a problem because it is installed later
in the Sysvinit package, which provides a better
<command>pidof</command> program. If Sysvinit will not be used for a
particular system, complete the installation of Psmisc by creating the
following symlink:</para>

<screen><userinput>ln -s killall /bin/pidof</userinput></screen>

</sect2>


<sect2 id="contents-psmisc" role="content"><title>Contents of Psmisc</title>

<segmentedlist>
<segtitle>Installed programs</segtitle>
<seglistitem><seg>fuser, killall, pstree, and pstree.x11 (link to pstree)</seg></seglistitem>
</segmentedlist>

<variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>

<varlistentry id="fuser">
<term><command>fuser</command></term>
<listitem>
<para>Reports the Process IDs (PIDs) of processes that use the given files or file systems</para>
<indexterm zone="ch-system-psmisc fuser"><primary sortas="b-fuser">fuser</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="killall">
<term><command>killall</command></term>
<listitem>
<para>Kills processes by name; it sends a signal to all processes
running any of the given commands</para>
<indexterm zone="ch-system-psmisc killall"><primary sortas="b-killall">killall</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pstree">
<term><command>pstree</command></term>
<listitem>
<para>Displays running processes as a tree</para>
<indexterm zone="ch-system-psmisc pstree"><primary sortas="b-pstree">pstree</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pstree.x11">
<term><command>pstree.x11</command></term>
<listitem>
<para>Same as <command>pstree</command>, except that it waits for confirmation before exiting</para>
<indexterm zone="ch-system-psmisc pstree.x11"><primary sortas="b-pstree.x11">pstree.x11</primary></indexterm>
</listitem>
</varlistentry>
</variablelist>

</sect2>

</sect1>