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Linux top 50 cmd - Who

Either the who command calls an owl, which it doesn't, or it prints the login name, terminal type, login time, and remote hostname of each user currently logged on. If two nonoption arguments are passed to the who command, the command prints the entry for the user running it. Typically, this is run with the command who am I, but any two arguments will work; for example, the following gives information on my session: svr01:/home/dpitts$ who who who svr01!dpitts ttyp2 Jul 27 19:32 (d12.dialup.seane) The -u option is nice if you want to see how long it has been since that session has been used.