Almost all commands have man pages . Read them with man or xman or in xemacs . Answerbook provides detailed Sun and Solaris manuals - or see paper manuals in the Support Office. Info contains manuals for many Linux applications. Read it using the info command or in xemacs.
EUCS documentation covers general software, especially for PCs.
Usenet News covers thousands of subjects. Our group eduni.dcs.questions is great for asking questions about the local systems and for picking up tips. There are also Metacrawler , Mamma , Lycos , Excite , Infoseek , Looksmart , UKplus , Netscape . Edinburgh University Library provides a guide to Informatics resources as well as an on-line catalogue . You can ask the Library to get a book .