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Binary operations in BASH

see also TEST bookmark in the menu

Basic binary operations

a=$((8+2)) echo $a b=$((8-4)) echo $b c=$((6/3)) echo $c d=$((5*3)) echo $d

Mathematical testing

(( $x > 15 )) or [ $x -gt 15 ]
(( $x >15 )) or [ $x -lt 15 ]
(( $x >= 15 ))
(( $x == 15 )) or [ $x -eq 15 ]

Incrementing
Three ways to increment $x $ x=$[$x+1] $ x=$(($x+1)) $ x=((x++))



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