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Definition: alias


(1) An alternate name used for identification, such as for naming a field or a file. See CNAME record and email alias.

(2) In the Mac, an alias is an icon that points to a program or data file. The Mac counterpart to a Windows "shortcut," an alias can be placed on the desktop or stored in other folders, and clicking the alias is the same as clicking the original file's icon. However, deleting an alias does not remove the original file. See shortcut.

(3) In Unix/Linux, an alias is a command that points to another command. It is typically used to abbreviate complex commands that are used repeatedly. Unless saved, aliases last only for the current session.

(4) A phony signal created under certain conditions when digitizing voice.