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researchv10 Dan Cross

#!/usr/bin/rc
# Usage: lookman key ...
#	prints out the names of all manual pages containing all the given keywords
index=/n/bowell/usr/man/index/index
t1=/tmp/look1.$pid
t2=/tmp/look2.$pid
fn sigexit sigint sighup sigterm{
	rm -f $t1 $t2
	exit 1
}
*=`{echo $*|tr A-Z a-z|tr -dc 'a-z \012'}	# fold case, delete funny chars
if(~ $#* 0){
	echo Usage: $0 key ... >/dev/stderr
	exit 1
}
look $1 $index|sed 's/.*	//'|sort -u >$t1
shift
for(i in $*){
	look $i $index|sed 's/.*	//'|sort -u|comm -12 - $t1 >$t2
	mv $t2 $t1
}
sort $t1
rm -f $t1 $t2
exit 0

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