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case

Branch based on the value of an expression.

More information.

• Match a variable against string literals to decide which command to run:

case {$tocount} in {words}) {wc -w README}; ;; {lines}) {wc -l README}; ;; esac

• Combine patterns with |, use * as a fallback pattern:

case {$tocount} in {[wW]|words}) {wc -w README}; ;; {[lL]|lines}) {wc -l README}; ;; *) {echo "what?"}; ;; esac

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