BC Programming Language - Using BC in Shell Scripts

Using Bc in Shell Scripts

bc can be used non-interactively, with input via a pipe. This is useful inside shell scripts. For example:

$ result=$(echo "scale=2; 5 * 7 / 3;" | bc) $ echo $result 11.66

In contrast, note that the bash shell only performs integer arithmetic, e.g.:

$ result=$((5 * 7 /3)) $ echo $result 11

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