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Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.

Finger is a UNIX and Internet utility that can be used to find out if a user is logged on. The command may display information about the user, depending on the operating system and security policies in place. The command requires the user ID or name of a user. For example, you could type finger to see if I am working at my Web site.

RFC 1288 (The Finger User Information Protocol, December 1991) describes the protocol. Some Finger sites are listed in the related entries section.

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