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Full Discussion: Cronjob Activation
Top Forums Shell Programming and Scripting Cronjob Activation Post 302166858 by Raynon on Wednesday 13th of February 2008 01:52:38 AM
Old 02-13-2008
Hi ,

I am refering to this particular exmaple that you have provided me.

Code:
#!/bin/csh
set numprocs=`ps -ef | grep -v grep | grep $scriptname | wc -l | awk '{ print $1 }'`
if ($numprocs == 1) then
    # carry on
else
   echo "Another instance is already running, exiting..."
   exit 0
endif

What is the significance of the numprocs?
If it equals to 1 , why does it show that the script is not running anymore?

I tried a simple csh script below and it doesn;t really work.
When it is sleeping, the name of the script which is "myscriptname" is not reflected during " ps -ef ", it only shows " usr 28951 28941 0 15:00:39 pts/7 0:00 sleep 100 ".

Can you help ?

Code:
#!/bin/csh

echo xxx
echo ppp 
echo zzz

sleep 100

 

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SHUNIT2(1)																SHUNIT2(1)

NAME
shunit2 - A unit test framework for shell scripts SYNOPSIS
shunit2 unitfile DESCRIPTION
shUnit2 is a xUnit unit test framework for Bourne based shell scripts, and it is designed to work in a similar manner to JUnit, PyUnit, etc.. If you have ever had the desire to write a unit test for a shell script, shUnit2 can do the job. You can either run shunit2 directly from the commandline and specify the unit file or directly source the shunit2 executable. If you directly execute shunit2 and don't specify a unitfile shunit2 assumes a empty testfile and will return without an error message. EXAMPLE
Simple script to test if 1 equals 1 #! /bin/sh testEquality() { assertEquals 1 1 } # load shunit2 . shunit2 Execute shUnit2 unit tests directly from the commandline shunit2 /path/to/unit/file OPTIONS
shunit2 does not support any commandline options at all. You can either source shunit2 to execute your unit tests or directly run shunit2 as a commandline script. SEE ALSO
For more information see http://code.google.com/p/shunit2/ or have a look at the installed documentation in /usr/share/doc/shunit2/ AUTHOR
shunit2 was written by Kate Ward <kate.ward@forestent.com>. This manpage was written by Ulrich Dangel <mru@spamt.net>. 2.1.6 03/25/2012 SHUNIT2(1)
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