[Editor's note: If you're new to the Terminal and UNIX in general, I highly recommend a couple of things. First, read Neal Parikh's Terminal Guide, linked in the top right box off the macosxhints' home page. Second, download ManThor, a Cocoa application for reading UNIX manual pages ("man pages"). Install and launch ManThor (which features formatting, printing, and searching - all free!) and then type "tcsh" in the search box. The man pages for tcsh are very very thorough, and explain about the history buffer as well as a number of other cool features. Well worth the reading time!]

