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# Perl grep since 'grep -P' is terrible. |
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if (( $# < 1 )) ; then |
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print "usage: $0 pattern [file ...]" >&2 |
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return 1 |
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fi |
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local pattern="$1" |
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shift |
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perl -nle 'print if /'"$pattern"'/;' "$@" |
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