w (Unix)

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Operating systemUnix and Unix-like

The command w on many Unix-like operating systems provides a quick summary of every user logged into a computer,[1] what each user is currently doing, and what load all the activity is imposing on the computer itself. The command is a one-command combination of several other Unix programs: who, uptime, and ps -a.


Sample output (which may vary between systems):

$ w
 11:12am up 608 day(s), 19:56,  6 users,  load average: 0.36, 0.36, 0.37
User     tty       login@  idle  what
smithj   pts/5      8:52am       w
jonesm   pts/23    20Apr06    28 -bash
harry    pts/18     9:01am     9 pine
peterb   pts/19    21Apr06       emacs -nw html/index.html
janetmcq pts/8     10:12am 3days -csh
singh    pts/12    16Apr06  5:29 /usr/bin/perl -w perl/test/program.pl


  1. ^ David Martínez Perales (23 March 2009). Learning UNIX with examples. ISBN 9781409253792.

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