So you are on an unfamiliar system and have an urgent need to get all your favourite tools (gcc, bash, perl, etc.) for a variant of Unix you aren't used to using. Here are the definitive freeware download sites for commercial Unixes.

        AIX users can get precompiled freeware from Bull's Freeware Archive.

        HP-UX users *need* the Software Porting and Archive Centre.

        Open source software for IRIX users can be found at SGI's freeware site.

        Solaris freeware junkies can get their fix at the Sun Freeware site.

        For UnixWare users, we suggest the FreeBird Project, whose slogan is "making SCO UnixWare® easier to live with". -- Update: unfortunately, this site seems to no longer exist.