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git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@1303 af4574ff-66df-0310-9fd7-8a98e5e911e0
95 lines
3.5 KiB
XML
95 lines
3.5 KiB
XML
<sect2>
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<title>Contents</title>
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<para>The daemontools package contains
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<command>svscanboot</command>, <command>svscan</command>,
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<command>supervise</command>, <command>svc</command>,
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<command>svok</command>, <command>svstat</command>,
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<command>fghack</command>, <command>pgrphack</command>,
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<command>readproctitle</command>, <command>multilog</command>,
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<command>tai64n</command>, <command>tai64nlocal</command>,
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<command>setuidgid</command>, <command>envuidgid</command>,
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<command>envdir</command>, <command>softlimit</command> and
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<command>setlock</command>. More detailed descriptions of these
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commands may be found at <ulink url="http://cr.yp.to/daemontools.html"/>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>svscanboot</title>
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<para><command>svscanboot</command> is simply a script that calls
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<command>svscan</command> and pipes its output to readproctitle.</para></sect3>
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<sect3><title>svscan</title>
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<para><command>svscan</command> checks the <filename>service</filename>
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directory for daemons to run and starts a <command>supervise</command> process
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for each run script that it finds.</para></sect3>
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<sect3><title>supervise</title>
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<para><command>supervise</command> runs the run script passed to it by
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<command>svscan</command> and monitors the process the script starts so that
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if it dies, <command>supervise</command> restarts it.</para></sect3>
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<sect3><title>svc</title>
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<para><command>svc</command> sends signals to processes being run under
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<command>supervise</command>.
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</para></sect3>
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<sect3><title>svok</title>
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<para><command>svok</command> checks to see that
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<command>supervise</command> is running in the directory
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passed to it.</para></sect3>
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<sect3><title>svstat</title>
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<para><command>svstat</command> prints the status of processes monitored by
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<command>supervise</command>.</para></sect3>
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<sect3><title>fghack</title>
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<para><command>fghack</command> prevents processes from putting themselves into
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the background.</para></sect3>
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<sect3><title>pgrphack</title>
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<para><command>pgrphack</command> runs a process in a separate process group.
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</para></sect3>
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<sect3><title>readproctitle</title>
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<para><command>readproctitle</command> displays log entries in the output of
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<command>ps</command>.
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</para></sect3>
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<sect3><title>multilog</title>
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<para><command>multilog</command> is a logging program. It takes output from a
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daemon and appends it to any number of logs.</para></sect3>
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<sect3><title>tai64n</title>
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<para><command>tai64n</command> is a timestamp generating program.</para>
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</sect3>
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<sect3><title>tai64nlocal</title>
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<para><command>tai64nlocal</command> converts output of tai64n into a human
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readable format.</para></sect3>
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<sect3><title>setuidgid</title>
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<para><command>setuidgid</command> runs a specified program under a given
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account's <acronym>UID</acronym> and <acronym>GID</acronym>.</para></sect3>
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<sect3><title>envuidgid</title>
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<para><command>envuidgid</command> performs the same function as setuidgid,
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but sets environment variables <envar>UID</envar> and <envar>GID</envar> equal
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to the <acronym>UID</acronym> and <acronym>GID</acronym> of the account specified.</para></sect3>
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<sect3><title>envdir</title>
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<para><command>envdir</command> runs a given program with environment variables
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specified by files in a directory.</para></sect3>
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<sect3><title>softlimit</title>
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<para><command>softlimit</command> allows resource limits to be set for a given
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program.</para></sect3>
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<sect3><title>setlock</title>
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<para><command>setlock</command> locks a file and runs a program.</para></sect3>
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</sect2>
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