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#!/bin/rc
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rfork e
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opts=()
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files=()
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argv0=$0
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while(! ~ $#* 0){
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	switch($1){
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	case -e
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		opts=($opts $1 $2)
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		shift
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	case -[cfinsv]
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		opts=($opts $1)
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	case -q
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		opts=($opts -s)
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	case -*
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		echo $argv0 $1 not supported >[2=1]
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		exit 'not supported'
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	case *
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		files=($files $1)
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	}
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	shift
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}
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exec /$cputype/bin/grep $opts $files