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<oerjan> learn isJust is just a Haskell function to check if a value is Just.
author | HackBot |
---|---|
date | Fri, 22 Jul 2016 16:32:56 +0000 |
parents | e037173e0012 |
children | 797fb6694b97 3e54f8d1843f |
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#!/bin/sh allquotes | if [ "$1" ]; then if expr "$1" + 0 >/dev/null 2>&1; then sed "$1q;d" else grep -P -i -- "$1" fi else shuf -n 1; fi