config() { NEW="$1" OLD="$(dirname $NEW)/$(basename $NEW .new)" # If there's no config file by that name, mv it over: if [ ! -r $OLD ]; then mv $NEW $OLD elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then # toss the redundant copy rm $NEW fi # Otherwise, we leave the .new copy for the admin to consider... } # Prepare the new configuration files for file in etc/rc.d/rc.vboxadd.new etc/rc.d/rc.vboxadd-timesync.new; do if [ -e $(dirname $file)/$(basename $file .new) -a -x $(dirname $file)/$(basename $file .new) ]; then chmod 0755 $file else chmod 0644 $file fi config $file done