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Name

who

Synopsis

    who [options] [file]

Display information about the current status of the system. With no options, list the names of users currently logged in to the system. An optional system file (the default varies per system) can be supplied to give additional information. who is usually invoked without options, but useful options include am i and -u. For more examples, see cut, line, paste, tee, and wc.

Common Options

-H, --heading

Print headings.

-m

Report only about the current terminal.

-q, --count

“Quick.” Display only the usernames.

-s, --short

List the name, line, and time fields (the default behavior).

-T, --mesg, --message, --writable

  

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