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Full Discussion: Process running? Stop it
Top Forums Shell Programming and Scripting Process running? Stop it Post 302500807 by LukasB on Tuesday 1st of March 2011 03:04:08 PM
Old 03-01-2011
Question Process running? Stop it
I have this "process keepalive" script:

Code:
#!/bin/bash

PIDFILE=/tmp/php.pid
PHPSCRIPT=/home/www/mydomain.com/subdomains/www/parser.php

echo 'Checking php process from PID file'
if [ -f $PIDFILE ] ; then
PID=`cat $PIDFILE`
if ps ax | grep -v grep | grep $PID > /dev/null
then
echo "php process still running - great!!!"
else
echo "php process not running - crap!!!"
rm -f $PIDFILE
php $PHPSCRIPT & echo $! > $PIDFILE&
fi
else
echo "Hey no file - first time maybe?"
php $PHPSCRIPT & echo $! > $PIDFILE&
fi

Now, if the process is running, it echoes "php process still running - great!!!".

I would like to do this: if the process is running, stop it. How to do that?

Thank you for any advice...
Last edited by LukasB; 03-01-2011 at 04:10 PM.. Reason: Typos
 

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LEARN ABOUT PHP

apd_breakpoint

APD_BREAKPOINT(3)							 1							 APD_BREAKPOINT(3)

apd_breakpoint - Stops the interpreter and waits on a CR from the socket

SYNOPSIS

       bool apd_breakpoint (int  $debug_level)

DESCRIPTION

	This  can be used to stop the running of your script, and await responses on the connected socket. To step the program, just send enter (a
       blank line), or enter a php command to be executed.

PARAMETERS

	      o $
		debug_level -An integer which is formed by adding together the XXX_TRACE constants.It is not recommended to use  MEMORY_TRACE.	It
		is  very  slow and does not appear to be accurate.  ASSIGNMENT_TRACE is not implemented yet.To turn on all functional traces (TIM-
		ING, FUNCTIONS, ARGS SUMMARY (like strace -c)) use the value 99

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Typical session using tcplisten

	      bash#tcplisten localhost 7777

	      APD - Advanced PHP Debugger Trace File
	      ---------------------------------------------------------------------------
	      Process Pid (6118)
	      Trace Begun at Sun Mar 10 23:13:12 2002
	      ---------------------------------------------------------------------------
	      (  0.000000): apd_set_session_trace called at /home/alan/Projects/project2/test.
	      php:5
	      (  0.074824): apd_set_session_trace_socket() at /home/alan/Projects/project2/tes
	      t.php:5 returned.  Elapsed (0.074824)
	      (  0.074918): apd_breakpoint() /home/alan/Projects/project2/test.php:7
			    ++ argv[0] $(??) = 9
	      apd_breakpoint() at /home/alan/Projects/project2/test.php:7 returned.  Elapsed (
	      -2089521468.1073275368)
	      >

	      statement: /home/alan/Projects/project2/test.php:8
	      >

	      statement: /home/alan/Projects/project2/test.php:8
	      >

	      statement: /home/alan/Projects/project2/test.php:10
	      >apd_echo($i);
	      EXEC: apd_echo($i);
	      0
	      >apd_echo(serialize(apd_get_active_symbols()));
	      EXEC:  apd_echo(serialize(apd_get_active_symbols()));
	      a:47:{i:0;s:4:"PWD";i:1;s:10:"COLORFGBG";i:2;s:11:"XAUTHORITY";i:3;s:14:"
	      COLORTERM_BCE";i:4;s:9:"WINDOWID";i:5;s:14:"ETERM_VERSION";i:6;s:16:"SE
	      SSION_MANAGER";i:7;s:4:"PS1";i:8;s:11:"GDMSESSION";i:9;s:5:"USER";i:10;s:5:"
	      MAIL";i:11;s:7:"OLDPWD";i:12;s:5:"LANG";i:13;s:10:"COLORTERM";i:14;s:8:"DISP
	      LAY";i:15;s:8:"LOGNAME";i:16;s:6:"
	      >apd_echo(system('ls /home/mydir'));
	      >apd_continue(0);

PHP Documentation Group 													 APD_BREAKPOINT(3)
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