1 files changed, 36 insertions, 0 deletions
diff --git a/rc/bin/lookman b/rc/bin/lookman
new file mode 100755
index 000000000..5854e9528
--- /dev/null
+++ b/rc/bin/lookman
@@ -0,0 +1,36 @@
+#!/bin/rc
+# Usage: lookman key ...
+#	prints out the names of all manual pages containing all the given keywords
+rfork e
+index=/sys/lib/man/lookman/index
+t1=/tmp/look1.$pid
+t2=/tmp/look2.$pid
+fn sigexit {
+	rm -f $t1 $t2
+	exit
+}
+fn sigint sighup sigterm {
+	rm -f $t1 $t2
+	exit note
+}
+
+*=`{echo $*|tr A-Z a-z|tr -dc 'a-z0-9_. \012'}	# fold case, delete funny chars
+if(~ $#* 0){
+	echo Usage: lookman key ... >/fd/2
+	exit usage
+}
+look $1 $index | sed 's/.*	//' | sort -u >$t1
+shift
+for(i in $*){
+	look $i $index | sed 's/.*	//' | sort -u |
+		awk 'BEGIN {
+			while (getline < "'$t1'" > 0)
+				table[$0] = 1
+			}
+			{ if (table[$0]) print }
+		' > $t2
+	mv $t2 $t1
+}
+sort $t1 | sed 's;/sys/man/;;
+	s;(.*)/(.*);man \1 \2 # \2(\1);'
+exit ''