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UGU: Unix Guru Universe - Unix Tip #4297- December 16, 2012
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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
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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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