Why my bash script behaves differently in RHEL 5.6 if compared to previous releases?
Issue
Why upgrading the system to RHEL 5.6 from a previous RHEL 5 release causes a bash script to behave differently?
The script name is "my_script" and the problematic line is:
VAR=`ps -ef | grep -v grep | grep "my_script" | wc -l`
This line returns always 2 on RHEL 5.6 while in previous RHEL 5 version it used to return 1.
Environment
- Red Hat Enterprise Linux
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