how to calculate time difference in solaris

问题

I have a process running in my server which user might not discard. I want to set a script which can calculate time difference and kill this automatically. Can anybody help me to calculate time difference between 2 dates in solaris?

回答1:

By a little searching, this link may help.

date1=$(/usr/xpg4/bin/awk 'BEGIN{srand();print srand()}')
# ... processing ...
date2=$(/usr/xpg4/bin/awk 'BEGIN{srand();print srand()}')

回答2:

This is what I have in a script that records how long it was running by computing the difference between start and end times:

START="$(perl -e 'print time')"
  [... body of script ...]
perl -e '$runtime = time - $ARGV[0];
         printf("Runtime: %d:%02d\n", $runtime/3600, ($runtime%3600)/60); ' \
        "${START}"

来源：https://stackoverflow.com/questions/12471585/how-to-calculate-time-difference-in-solaris