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need help: shell script to restart apache when no. of processes keeps growing

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Top Forums Shell Programming and Scripting need help: shell script to restart apache when no. of processes keeps growing
# 15  
Old 03-07-2007
I used 'killall httpd' to kill all 'httpd' processes and start apache again. So far it's working well. I know little about killall command except for it killing all the processes.
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LEARN ABOUT OSX

killall

KILLALL(1)						    BSD General Commands Manual 						KILLALL(1)

NAME

     killall -- kill processes by name

SYNOPSIS

     killall [-delmsvz] [-help] [-u user] [-t tty] [-c procname] [-SIGNAL] [procname ...]

DESCRIPTION

     The killall utility kills processes selected by name, as opposed to the selection by pid as done by kill(1).  By default, it will send a TERM
     signal to all processes with a real UID identical to the caller of killall that match the name procname.  The super-user is allowed to kill
     any process.

     The options are as follows:

	   -d | -v     Be more verbose about what will be done.  For a single -d option, a list of the processes that will be sent the signal will
		       be printed, or a message indicating that no matching processes have been found.

	   -e	       Use the effective user ID instead of the (default) real user ID for matching processes specified with the -u option.

	   -help       Give a help on the command usage and exit.

	   -l	       List the names of the available signals and exit, like in kill(1).

	   -m	       Match the argument procname as a (case sensitive) regular expression against the names of processes found.  CAUTION!  This
		       is dangerous, a single dot will match any process running under the real UID of the caller.

	   -s	       Show only what would be done, but do not send any signal.

	   -SIGNAL     Send a different signal instead of the default TERM.  The signal may be specified either as a name (with or without a lead-
		       ing SIG), or numerically.

	   -u user     Limit potentially matching processes to those belonging to the specified user.

	   -t tty      Limit potentially matching processes to those running on the specified tty.

	   -c procname
		       When used with the -u or -t flags, limit potentially matching processes to those matching the specified procname.

	   -z	       Do not skip zombies.  This should not have any effect except to print a few error messages if there are zombie processes
		       that match the specified pattern.

ALL PROCESSES

     Sending a signal to all processes with uid XYZ is already supported by kill(1).  So use kill(1) for this job (e.g. $ kill -TERM -1 or as root
     $ echo kill -TERM -1 | su -m <user>)

EXIT STATUS

     The killall command will respond with a short usage message and exit with a status of 2 in case of a command error.  A status of 1 will be
     returned if either no matching process has been found or not all processes have been signalled successfully.  Otherwise, a status of 0 will
     be returned.

DIAGNOSTICS

     Diagnostic messages will only be printed if requested by -d options.

SEE ALSO

     kill(1), sysctl(3)

HISTORY

     The killall command appeared in FreeBSD 2.1.  It has been modeled after the killall command as available on other platforms.

AUTHORS

     The killall program was originally written in Perl and was contributed by Wolfram Schneider, this manual page has been written by Jorg
     Wunsch.  The current version of killall was rewritten in C by Peter Wemm using sysctl(3).

BSD
								 January 26, 2004							       BSD