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#!/bin/sh
#+++
# RCS $id$
# title: mergeactive.sh
# abstract: Merge two (or more) active files.
# author: T.R.Hageman, Groningen, The Netherlands
# created: December 1994
# modified: (see RCS Log at end)
# copyright:
#
# Copyright (C) 1994,1995 Tom R. Hageman.
#
# This is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# description:
#
# All fields from the first active file are retained.
# Additional lines for new groups from subsequent active files have their
# second and third fields cleared in the final output.
#---
if [ $# != 2 ]
then
echo "Usage: $0 primary-active secondary-actives" >&2
exit 2
fi
# Kludge to let ancient awk see dummy file (would otherwise ignore /dev/null).
case "$1" in #(
/dev/null)
nullfile=/tmp/null$$
trap "trap 0; rm -f $nullfile" 0
echo >$nullfile
shift
set - $nullfile "$@"
esac
awk '
FILENAME != Filename { NFiles++; Filename = FILENAME }
/^$/ { next }
NFiles == 1 {
seen[$1] = 1
printf("%s %010d %05d %s\n", $1, $2, $3, $4)
next
}
{
if (!seen[$1]) {
print $1, "0000000000", "00001", $4
}
}
' "$@" | sort
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.