mathematics_in_bash
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* Math on the cli
Basic operations $ echo $((1+1)) 2 $ echo $((3-1)) 2 $ echo $((4/2)) 2 $ echo $((1*2)) 2 Basic ops using expr $ expr 60 / 5 12 Floating point calculations $ echo "2*2.2/2.2" | bc 2 $ echo "4.4+7/8-(4.74*3.14)" | bc -10.48 using here-doc $ bc <<< "4.4+7/8-(4.74*3.14)" -10.48 a bash funtion, for your .bashrc calc () { bc -l <<< "$@" } usage: $ calc 65320*670 43764400
mathematics_in_bash.1449484743.txt.gz · Last modified: 2015/12/19 14:59 (external edit)