usr/src/cmd/man/src/makewhatis.sh

#!/bin/sh -
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PATH=/usr/xpg4/bin:$PATH

tmpdir=/tmp/whatis.$$
trap "rm -rf $tmpdir; exit 1" 1 2 13 15

mkdir -m 700 $tmpdir || {
	echo "${0}: could not create temporary directory" 1&>2
	exit 1
}

[ -d $1 ] || exit 1

cd $1
top=`pwd`
for i in man?* sman?*
do
	if [ -d $i ] ; then
		cd $i
		if test "`echo *`" != "*" ; then
			/usr/lib/getNAME *
		fi
		cd $top
	fi
done >$tmpdir/whatisx
sed  <$tmpdir/whatisx \
	-e 's/\\-/-/' \
	-e 's/\\\*-/-/' \
	-e 's/ VAX-11//' \
	-e 's/\\f[PRIB01234]//g' \
	-e 's/\\s[-+0-9]*//g' \
	-e 's/\\&//g' \
	-e '/ - /!d' \
	-e 's/.TH [^ ]* \([^ 	]*\).*	\(.*\) -/\2 (\1)	 -/' \
	-e 's/	 /	/g' | \
awk '{	title = substr($0, 1, index($0, "- ") - 1)
	synop = substr($0, index($0, "- "))
	count = split(title, n, " ")
	for (i=1; i<count; i++) {
		if ( (pos = index(n[i], ",")) || (pos = index(n[i], ":")) )
			n[i] = substr(n[i], 1, pos-1)
		printf("%s\t%s %s\t%s\n", n[i], n[1], n[count], synop)
	}
}' >$tmpdir/whatis
/usr/bin/expand -16,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100 \
	$tmpdir/whatis | LC_CTYPE=C LC_COLLATE=C sort -u | \
	/usr/bin/unexpand -a > windex
chmod 644 windex >/dev/null 2>&1
rm -rf $tmpdir
exit 0