One of the best free online books I've seen is at http://rute.sourceforge.net/ This one will definitely take longer than 400 minutes to master!
Recently we were talking about the $PATH variable. Here's the rute section on that: http://rute.sourceforge.net/node7.html#SECTION007180000000000000000 The "read it three times" rule may well apply to newbies and this section on the filesystem: (another thing recently inquired about) http://rute.sourceforge.net/node38.html#SECTION003830000000000000000 - Steve
