:
##########################################################################
# Shellscript:	cfget - get parameter from configuration file by key
# Autor      :	Heiner Steven <heiner.steven@odn.de>
# Date       :	1993-11-27
# Requires   :	cfcat
# Category   :	System Administration
# SCCS-Id.   :	@(#) cfget	1.2 04/02/18
##########################################################################
# Description:
#    -	Reads given configuration file, and returns the value for
#	the key specified
#
# Note
#     - slow!
#     - see also "defread" (SCO UNIX)
#
# See also:
#	cfcat
##########################################################################

PN=`basename "$0"`			# Program name
VER='1.2'

[ $# -ge 2 ] || {
    echo "$PN - get parameter from a configuration file by key, $VER"
    echo "usage: $PN configfile key [key  ...]"
    echo
    echo "The configuration file contains lines in the following format:"
    echo "	key = value"
    echo
    echo "Searches file for given keywords, and returns the corresponding"
    echo "values."
    exit 1
}

Config="$1"
shift

[ -z "$Config" ] && {
    echo "$PN: please specify configuration file name!" >&2
    exit 1
}

[ 1+1 -eq 2 ] && KornShell=yes

# Search all keywords, print corresponding value

for i
do
    # Convert keyword to upper case
    if [ "$KornShell" = yes ]
    then typeset -u g="$i"
    else g="`echo $i | tr '[a-z]' '[A-Z]'`"
    fi

    # Seach keyword. Algorithm:
    #	o  Save line (h - copy "pattern space" to "hold space"
    #	o  Extract keywords, and convert to upper case (y)
    #	o  If keyword found: restore old line (g), print parameter

    cfcat "$Config" | sed -n -e "
	/=/{
	    h
	    s/^[ 	]*\(.*\)[	]*=.*/\1/
	    s/[ 	]*$//g
	    y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/
	    /^$g$/{
		g
		s/^[ 	]*.*=[ 	]*\(.*\)$/\1/
		p
		q
	    }
	}
    "
done
exit 0