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UGU: Unix Guru Universe - Unix Tip #4297- December 16, 2012 - Home : Help : Today's Tip
Unix Tip #4297- December 16, 2012

SUM OF ALL THE DIGITS


Here is an easy way to calculate the
sum of all the digits of a number:

$ expr `echo "987655" | sed -e 's/[0-9]/ + &/g' -e 's/^ +//g'`
40


NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4296 - REVERSE A FILE
4295 - FINDING NUM OF DIRECTORIES
4294 - ADDING COLUMNS QUICKLY
4293 - CHMOD FILES NOT DIRS
4292 - FIND/REPLACE RECURSIVELY


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