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Full Discussion: Avoiding 'sh -c' when running ps from CRON
Top Forums Shell Programming and Scripting Avoiding 'sh -c' when running ps from CRON Post 302605385 by cavallino4u on Wednesday 7th of March 2012 10:31:45 AM
Old 03-07-2012
Avoiding 'sh -c' when running ps from CRON
Hi,
I have a script which has the below line:
Code:
ps -ef | grep ${SCRIPT_NAME} | grep ksh | grep -v grep >> /tmp/instance.tmp

When the script is invoked through CRON, I get 2 lines in instance.tmp when actually only one instance is running:
Code:
    cdrd 17790 17789  0 15:14:01 ?        0:00 /bin/ksh /scripts/dispatch.ksh CLIENT.cfg
    cdrd 17789   191  0 15:14:01 ?        0:00 sh -c /scripts/dispatch.ksh CLIENT.cfg 2>/dev/null >/de

Why is the 'sh -c' entry getting displayed in ps -ef ? Is there anyway to avoid the 'sh -c' entry from the output of 'ps -ef' ?
I could always use 'grep -v "sh -c"', but I am looking to avoid grep.

Please help.

Thanks in advance.
Last edited by Franklin52; 03-07-2012 at 03:53 PM.. Reason: Please use code tags for data and code samples, thank you
 

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LEARN ABOUT PHP

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
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       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

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AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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