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Script to kill PS and Start Again
This is a discussion on Script to kill PS and Start Again within the Shell scripting forums, part of the Development/Scripting category; Hello Nixcraft!!! Learning Shell Scripting. Bear with me. And I attempted to search for the answer prior to posting. I ...
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29-05-2009, 12:47 AM
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Script to kill PS and Start Again
Hello Nixcraft!!!
Learning Shell Scripting. Bear with me. And I attempted to search for the answer prior to posting. I am currently working on a bash shell script that will update a configuration change to a servers swatch logwatch application. The issue that appears to happen is I am successful in the termination piece of the puzzle. However the command that I issue from the command line in the shell does not successfully start the perl Processes again. I tried a sleep command before the init scripts and I was unsuccessful. Please shed some light on this: Code:
# grep for Process ID and create variable
#
for proc in `ps -ef | grep swatch | awk '{print $2}'`; do
kill -9 $proc ; done
#
#
# Issue start command for perl swatch processes to run
#
swatch -c /var/log/swatch/.swatchrc.apache --script-dir=/var/log/swatch -t /usr/local/apache/logs/radio24_error_log &
swatch -c /var/log/swatch/.swatchrc.messages --script-dir=/var/log/swatch -t /var/log/messages &
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29-05-2009, 04:56 AM
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Maybe it isn't the problem but how about handing commands off to 'at'? As in 'echo "swatch -c /var/log/swatch/.swatchrc.apache --script-dir=/var/log/swatch -t /usr/local/apache/logs/radio24_error_log"|/usr/bin/at now'? If something goes wrong an email will be sent to the at user which may contain leads for resolving errors.
BTW 'for proc in `ps -ef | grep swatch | awk '{print $2}'`; do kill -9 $proc ; done' can prolly be written more tersely as 'pkill -9 swatch'.
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