wall (Unix)
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wall (an abbreviation of write to all) is a Unix command-line utility that displays the contents of a computer file or standard input to all logged-in users. It is typically used by root to send out shutting down message to all users just before poweroff.
Quick Facts Developer(s), Initial release ...
Developer(s) | AT&T Bell Laboratories |
---|---|
Initial release | May 1975; 49 years ago (1975-05) |
Operating system | Unix and Unix-like |
Type | Command |
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