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#!/bin/sh
#
# apropos -- search the whatis database for keywords.
# whatis -- idem, but match only commands (as whole words).
#
# Copyright (c) 1990, 1991, John W. Eaton.
# Copyright (c) 1994-1999, Andries E. Brouwer.
#
# You may distribute under the terms of the GNU General Public
# License as specified in the README file that comes with the man
# distribution.
#
# apropos/whatis-1.5m aeb 2003-08-01 (from man-1.6f)
#
# keep old PATH - 000323 - Bryan Henderson
# also look in /var/cache/man - 030801 - aeb
program=`basename $0`
# When man pages in your favorite locale look to grep like binary files
# (and you use GNU grep) you may want to add the 'a' option to *grepopt1.
aproposgrepopt1='ai'
aproposgrepopt2=''
whatisgrepopt1='aiw'
whatisgrepopt2='^'
grepopt1=$whatisgrepopt1
grepopt2=$whatisgrepopt2
if [ $# = 0 ]
then
echo "usage: $program keyword ..."
exit 1
fi
manpath=`man --path | tr : '\040'`
if [ "$manpath" = "" ]
then
echo "$program: manpath is null"
exit 1
fi
args=
for arg in $*; do
case $arg in
--version|-V|-v)
echo "$program from man-1.6f"
exit 0
;;
--help|-h)
echo "usage: $program keyword ..."
exit 0
;;
-*)
echo "$program: $arg: unknown option"
exit 1
;;
*)
args="$args $arg"
esac
done
while [ "$1" != "" ]
do
found=0
for d in /var/cache/man $manpath /usr/lib
do
if [ -f $d/whatis ]
then
if grep -"$grepopt1" "$grepopt2""$1" $d/whatis
then
found=1
# Some people are satisfied with a single occurrence
# But it is better to give all
# break
fi
fi
done
if [ $found = 0 ]
then
echo "$1: nothing appropriate"
fi
shift
done
exit