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case: add page (#1930)

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Colin 2018-02-20 15:58:20 -05:00 committed by Owen Voke
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# case
> Branch based on the value of an expression.
- 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`