This OPSI SERVER Command line Tool (Opsi Updater) will check for available OPSI Product Updates on official Servers (example Mozilla) and will allow to Download and Update older Product Versions on OPSI Repository and distribute them on clients having older versions.
readme:
http://svn.code.sourceforge.net/p/opsiupdater/code-0/trunk/readme.txt
cmdok checks that specified commands are OK. If command is OK than it exists in PATH and can be run.
It is a simple, small and portable Bash script. It is useful in software packages that want to check that some commands exist before trying to run them.
See wiki for more information and examples.
slackports is a project to bring to the Slackware Linux, a light BSD ports system to provide a large set of software, creating slackware package installing and upgrading them, without dependences check.