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#8
05-19-2006
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back into this again
I'm back into this issue again.
What I want to do: I need to identify processes that have reverted to PPID 1 for a specific user. I need to kill all the processes that are over 2 hours old that have reverted to PPID 1. I have used the grep command and stored the processes in a file. I can identify processes over a day old by looking for the Month in the date field. I'm having a problem getting the hour logic to work. Can anyone help me on this? currHR=`date +%H` echo $currHR LastHr=`expr $currHR - 1` echo $LastHr # cat $TMP2 | while read b do ProcessTime=`echo $b | awk '{print $5}'` ProcessHour=`echo $ProcessTime | awk -F: '{print $1}'` Killid=`echo $b | awk '{print $2}'` echo "ProcessTime " $ProcessTime echo "ProcessHour " $ProcessHour case $ProcessTime in M*|J*|F*|A*|S*|O*|N*|D* ) echo $ProcessTime "Day old " ;; * ) case $ProcessHour in $currHR) echo "current hour " ;; $LastHr) echo "last hour ";; esac echo $ProcessTime "other " ;; esac done The logic recognizes currHR as 08 (etc) The logic recognizes LastHr as 7 (etc) The logic recognizes ProcessHour as 07, 08 (etc) The 2nd case logic for processhour does not match current or last hour. 
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#9
05-24-2006
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To make the tests work you need to make sure you compare like with like, strings like 08 and 8 are different - even tho they have the same numeric values. You could define your variables to ensure the strings are in the same format (using "typeset -Z2" <varname>) or use integers (typeset -i <varname>).
You might also want to be able to cope with the last hour going negative (between midnight and 1 minute to 1am). However, if you want to find the process for the current hour (i.e. the last 60 minutes) and the previous hour (60 to 120 minutes ago) then you need to take the minutes into account. Suggestions: Code:
typeset -Z2 currHR=`date +%H`
echo Current hour is $currHR
typeset -Z2 currMI=`date +%M`
echo Current min is $currMI
typeset -Z2 lastHR=`expr $currHR - 1`
echo Last hour is $lastHR
if [ $lastHR -lt 0 ]; then
lastHr=23
fi
typeset -Z2 prevHR=`expr $lastHR - 1`
echo Prev hour is $prevHR
if [ $prevHR -lt 0 ]; then
prevHr=23
fi
cat $TMP2 | while read b
do
print "\n$b"
processTime=`echo $b | awk '{print $5}'`
processHR=`echo $processTime | awk -F: '{print $1}'`
processMI=`echo $processTime | awk -F: '{print $2}'`
killid=`echo $b | awk '{print $2}'`
echo "Process time " $processTime
echo "Process hour " $processHR
echo "Process min " $processMI
if [ "$processMI" = "" ]; then
echo "Day old "
elif [ $processHR = $currHR ]||([ $processHR = $lastHR ]&&[ $processMI -ge $currMI ]); then
echo "current hour "
elif [ $processHR = $lastHR ]||([ $processHR = $prevHR ]&&[ $processMI -ge $currMI ]); then
echo "last hour "
else
echo "other "
fi
done
 hope this helps
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