2BSD/src/ctags.sh

# ctags
# (c) 1979 Regents of the University of California
grep '^[a-z].*)$' $* >/tmp/$$
ed - /tmp/$$ << 'EOF'
1,$s/(.*//
1,$s/\(.*\):\(.*\)/\2	\1	\/^\2\//
w
q
'EOF'
sort -d /tmp/$$ | uniq >tags
rm /tmp/$$