Even web hosting interfaces like Cpanel allow you to uncompress archives in the "File Manager".
The command names and/or command lines to use would be sooo helpful.
I've searched this site extensively without luck. I've googled tcsh without luck. Nothing shows me the necessary command(s). I tried looking at the man pages for tsch . . . must have a billion words (no kidding). Made no sense to me. This seems such a dumb thing, but I'm stumped.
If you have downloaded the Moodle in *.zip format, you can use
unzip moodle-1.5.2.zip
but I don't think all linux installations have unzip.
A *.tgz archive is the more standard Linux way. you can download Moodle in this format also. To extract it, use:
tar xzvf moodle-1.5.2.tgz
This made me think about why this wasn't added to the install documentation. I think it says
Even web hosting interfaces like Cpanel allow you to uncompress archives in the "File Manager".
because Cpanel offers a nice webbased interface to all of this cryptic unix commands. That's why there is no more mention of the exact commands to use.
If you don't have Cpanel, but do have shell access to your server, you may want to use the CVS instructions for installing Moodle.
This option is really very interesting. The commands to use cvs are only slightly more cryptic than the tar/unzip ones.
The big advantage comes afterwards. To update your Moodle to the current version you just need to type:
cvs update -dP