Users new to the command line feature of Linux can find a sympathetic ally in David Cardinal whose post on extremetech.com provides a helpful introduction to the structure and function of the various commands. He begins with an explanation of the abbreviations commonly used in Linux that, in contrast to Windows where they are spelled out, can in Linux be somewhat fragmentary. One of the most helpful pieces of information Cardinal offers is his explanation of the wildcard as a shortcut in typing a Linux filename. This is a time- and keystroke-saver for sure. He also stresses the utility of the Linux control key sequences that, used improperly, have the potential to undo a user's intentions. A useful reference is the Linux Pocket Guide, which Cardinal recommends as an essential text in every user's library.
Top 50 Universal UNIX Commands
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