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#!/bin/bash
if [[ -z "$AWK" ]]; then
printf '$AWK must be set\n' >&2
exit 1
fi
$AWK 'BEGIN {
if (ARGV[1]) print 1
ARGV[1] = ""
if (ARGV[2]) print 2
ARGV[2] = ""
if ("0") print "zero"
if ("") print "null"
if (0) print 0
}
{
if ($0) print $0
if ($1) print $1
}' 0 1 compare.in
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