NetBSD/games/wtf/wtf

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#!/bin/sh
#
# $NetBSD: wtf,v 1.13 2005/07/01 14:21:49 peter Exp $
#
# Public domain
#
usage() {
echo "usage: `basename $0` [-f dbfile] [is] <acronym>"
exit 1
}
acronyms=${ACRONYMDB:-`ls /usr/share/misc/acronyms*`}
args=`getopt f: $*`
if [ $? -ne 0 ]; then
usage
fi
set -- $args
while [ $# -gt 0 ]; do
case "$1" in
-f)
acronyms=$2; shift
;;
--)
shift; break
;;
esac
shift
done
if [ "$1" = "is" ] ; then
shift
fi
if [ $# -lt 1 ] ; then
usage
fi
for f in $acronyms
do
if [ ! -f $f ]; then
echo "`basename $0`: cannot open acronyms database file \`$f'" 1>&2
exit 1
fi
done
rv=0
while [ $# -gt 0 ] ; do
# Search acronyms list first
target=`echo $1 | tr '[a-z]' '[A-Z]'`
ans=`cat $acronyms | fgrep -h $target 2>/dev/null \
| sed -ne "\|^$target[[:space:]]|s|^$target[[:space:]]*||p"`
if [ "$ans" != "" ] ; then
echo "$target: $ans"
shift ; continue
fi
# Try whatis(1) next
ans=`whatis $1 2>/dev/null`
if [ $? -eq 0 ] ; then
echo "$ans" | sort | uniq
shift ; continue
fi
# Try pkg_info(1) next
ans=`pkg_info -qc $1 2> /dev/null`
if [ $? -eq 0 ] ; then
echo "$1: $ans"
shift ; continue
fi
# Give up!
echo "`basename $0`, I don't know what $1 means!" 1>&2
rv=1
shift
done
exit $rv