Slackware's version file is /etc/slackware-version not
/etc/slackware-release.
pidof is not on PATH by default (not running as root) so call it using
full path
* On Slackware, /etc/rc.d/rc.nfsd has no "status" argument, so the check command change to pidof command.
* On Plamo Linux, there is no /etc/slackware-release file, so use "/usr/lib/setup/Plamo-*" instead.
Guillermo Bonvehí
Mitchell Hashimoto
KATOH Yasufumi
Hiroshi Miura