1#!/bin/sh 2# $LynxId: install-lss.sh,v 1.2 2021/01/07 00:32:39 tom Exp $ 3# install lynx.lss, ensuring the old config-file is saved to a backup file. 4# 5# $1 = install program 6# $2 = file to install 7# $3 = where to install it 8PRG="$1" 9SRC=$2 10DST=$3 11 12if test -f "$DST" ; then 13 # See if we have saved this information before 14 if cmp -s "$SRC" "$DST" 15 then 16 echo "... installed $DST would not be changed" 17 else 18 NUM=1 19 while test -f "${DST}-${NUM}" 20 do 21 if cmp -s "$SRC" "${DST}-${NUM}" 22 then 23 break 24 fi 25 NUM=`expr "$NUM" + 1` 26 done 27 if test ! -f "${DST}-${NUM}" 28 then 29 echo "... saving old config as ${DST}-${NUM}" 30 mv "$DST" "${DST}-${NUM}" || exit 1 31 fi 32 echo "** installing $SRC as $DST" 33 eval "$PRG" "$SRC" "$DST" || exit 1 34 fi 35else 36 echo "** installing $SRC as $DST" 37 eval "$PRG" "$SRC" "$DST" || exit 1 38fi 39