I have a very clunky way of calculating the # of minutes in shell since
2000. This allows me to write the value to a variable and then do the math
later in a script to figure out how long a job ran, an alert has been
trigger etc...For those of you working in shell you know date math is not so
easy (without GNU date). This is the simplest method I have found, I would
just like the function below to look a bit cleaner.
function Minutes {
# Funky function I use to calculate the number of minutes since 2000
MIN_YEAR=$( date +"%Y" )
MIN_YEAR=$( expr ${MIN_YEAR} - 2000 )
MIN_YEAR=$( expr ${MIN_YEAR} \* 525600 )
MIN_DAYS=$( date +"%j" )
MIN_DAYS=$( expr "${MIN_DAYS}" - 1 )
MIN_DAYS=$( expr "${MIN_DAYS}" \* 1440 )
MIN_HOURS=$( date +"%H" )
MIN_HOURS=$( expr "${MIN_HOURS}" \* 60 )
MIN_MINS=$( date +"%M" )
MIN_TOTAL=$(( ${MIN_YEAR} + ${MIN_DAYS} + ${MIN_HOURS} + ${MIN_MINS} ))
print ${MIN_TOTAL}
}
I am sure there is a more elegant way of doing this, anyone care to share
thier ideas/improvments/solutions?
Thanks,
Ethan
Perl is not an option Jared ;)
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