285 lines
6.8 KiB
HTML
285 lines
6.8 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of KILLALL</TITLE>
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</HEAD><BODY>
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<H1>KILLALL</H1>
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Section: User Commands (1)<BR>Updated: 2018-05-06<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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killall - kill processes by name
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>killall</B>
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[<B>-Z</B>,<B> --context</B>
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<I>pattern</I>]
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[<B>-e</B>,<B> --exact</B>]
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[<B>-g</B>,<B> --process-group</B>]
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[<B>-i</B>,<B> --interactive</B>]
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[<B>-n</B>,<B> --ns</B>
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<I>PID</I>]
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[<B>-o</B>,<B> --older-than</B>
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<I>TIME</I>]
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[<B>-q</B>,<B> --quiet</B>]
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[<B>-r</B>,<B> --regexp</B>]
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[<B>-s</B>,<B> --signal</B>
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<I>SIGNAL</I>, <I>-SIGNAL</I>]
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[<B>-u</B>,<B> --user</B>
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<I>user</I>]
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[<B>-v</B>,<B> --verbose</B>]
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[<B>-w</B>,<B> --wait</B>]
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[<B>-y</B>,<B> --younger-than</B>
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<I>TIME</I>]
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[<B>-I</B>,<B> --ignore-case</B>]
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[<B>-V,</B> --version<B>]</B>
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[<B>--</B>]
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<I>name ...</I>
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<BR>
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<B>killall</B>
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-l
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<BR>
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<B>killall</B>
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-V,<B> --version</B>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>killall</B>
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sends a signal to all processes running any of the specified commands.
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If no signal name is specified, SIGTERM is sent.
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<P>
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Signals can be specified either by name (e.g.
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<B>-HUP</B>
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or
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<B>-SIGHUP</B>)
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or by number (e.g.
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<B>-1</B>)
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or by option
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<B>-s</B>.
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<P>
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If the command name is not regular expression (option
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<B>-r</B>)
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and contains a slash
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(<B>/</B>),
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processes executing that particular file will be selected for killing,
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independent of their name.
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<P>
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<B>killall</B>
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returns a zero return code if at least one process has been killed for
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each listed command, or no commands were listed and at least one
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process matched the -u and -Z search criteria.
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<B>killall</B>
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returns non-zero otherwise.
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<P>
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A
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<B>killall</B>
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process never kills itself (but may kill other
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<B>killall</B>
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processes).
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-e</B>, <B>--exact</B><DD>
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Require an exact match for very long names. If a command name is
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longer than 15 characters, the full name may be unavailable (i.e. it
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is swapped out). In this case,
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<B>killall</B>
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will kill everything that matches within the first 15 characters. With
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<B>-e</B>,
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such entries are skipped.
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<B>killall</B>
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prints a message for each skipped entry
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if
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<B>-v</B>
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is specified in addition to
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<B>-e</B>,
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<DT id="2"><B>-I</B>, <B>--ignore-case</B><DD>
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Do case insensitive process name match.
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<DT id="3"><B>-g</B>, <B>--process-group</B><DD>
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Kill the process group to which the process belongs. The kill signal
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is only sent once per group, even if multiple processes belonging to
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the same process group were found.
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<DT id="4"><B>-i</B>, <B>--interactive</B><DD>
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Interactively ask for confirmation before killing.
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<DT id="5"><B>-l</B>, <B>--list</B><DD>
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List all known signal names.
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<DT id="6"><B>-n</B>, <B>--ns</B><DD>
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Match against the PID namespace of the given PID. The default is to match
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against all namespaces.
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<DT id="7"><B>-o</B>, <B>--older-than</B><DD>
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Match only processes that are older (started before) the time
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specified. The time is specified as a float then a unit. The units
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are s,m,h,d,w,M,y for seconds, minutes, hours, days, weeks, Months and
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years respectively.
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<DT id="8"><B>-q</B>, <B>--quiet</B><DD>
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Do not complain if no processes were killed.
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<DT id="9"><B>-r</B>, <B>--regexp</B><DD>
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Interpret process name pattern as a POSIX extended regular expression, per
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<B><A HREF="/cgi-bin/man/man2html?3+regex">regex</A></B>(3).
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<DT id="10"><B>-s</B>, <B>--signal</B>, <B>-SIGNAL</B><DD>
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Send this signal instead of SIGTERM.
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<DT id="11"><B>-u</B>, <B>--user</B><DD>
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Kill only processes the specified user owns. Command names are
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optional.
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<DT id="12"><B>-v</B>, <B>--verbose</B><DD>
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Report if the signal was successfully sent.
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<DT id="13"><B>-V</B>, <B>--version</B><DD>
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Display version information.
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<DT id="14"><B>-w</B>, <B>--wait</B><DD>
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Wait for all killed processes to die.
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<B>killall</B>
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checks once per second if any of the killed processes still exist and
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only returns if none are left. Note that
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<B>killall</B>
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may wait forever if the signal was ignored, had no effect, or if the
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process stays in zombie state.
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<DT id="15"><B>-y</B>, <B>--younger-than</B><DD>
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Match only processes that are younger (started after) the time
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specified. The time is specified as a float then a unit. The units
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are s,m,h,d,w,M,y for seconds, minutes, hours, days, weeks, Months and
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years respectively.
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<DT id="16"><B>-Z</B>, <B>--context</B><DD>
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(SELinux Only) Specify security context: kill only processes having
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security context that match with given extended regular expression
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pattern. Must precede other arguments on the command line. Command
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names are optional.
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</DL>
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<A NAME="lbAF"> </A>
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<H2>FILES</H2>
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<DL COMPACT>
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<DT id="17">/proc<DD>
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location of the proc file system
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</DL>
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<A NAME="lbAG"> </A>
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<H2>KNOWN BUGS</H2>
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Killing by file only works for executables that are kept open during
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execution, i.e. impure executables can't be killed this way.
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<P>
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Be warned that typing
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<B>killall</B>
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<I>name</I>
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may not have the desired effect on non-Linux systems, especially when
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done by a privileged user.
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<P>
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<B>killall -w</B>
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doesn't detect if a process disappears and is replaced by a new process
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with the same PID between scans.
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<P>
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If processes change their name,
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<B>killall</B>
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may not be able to match them correctly.
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<P>
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<B>killall</B>
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has a limit of names that can be specified on the command line. This
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figure is the size of an unsigned long multiplied by 8. For most 32
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bit systems the limit is 32 and similarly for a 64 bit system the limit
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is usually 64.
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?1+kill">kill</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+fuser">fuser</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+pgrep">pgrep</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+pidof">pidof</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+pkill">pkill</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+ps">ps</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?2+kill">kill</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?3+regex">regex</A></B>(3).
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="18"><A HREF="#lbAB">NAME</A><DD>
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<DT id="19"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="20"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="21"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="22"><A HREF="#lbAF">FILES</A><DD>
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<DT id="23"><A HREF="#lbAG">KNOWN BUGS</A><DD>
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<DT id="24"><A HREF="#lbAH">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:17 GMT, March 31, 2021
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</BODY>
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</HTML>
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