w (Unix)

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.

Example

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

References

↑ David Martínez Perales. Learning UNIX with examples.

External links

w(1) – 4.2BSD General Commands Manual
w(1) – FreeBSD General Commands Manual

Unix command-line interface programs and shell builtins

File system	cat chmod chown chgrp cksum cmp cp dd du df file fsck fuser ln ls mkdir mount mv pax pwd rm rmdir split tee touch type umask

Processes	at bg chroot cron fg kill killall nice pgrep pkill ps pstree time top

User environment	clear env exit finger history logname mesg passwd su sudo uptime talk tput uname w wall who whoami write

Text processing	awk banner basename comm csplit cut diff dirname ed ex fmt fold head iconv join less more nl paste printf sed sort spell strings tail tr uniq vi wc xargs yes

Shell builtins	alias cd echo test unset wait

Networking	dig host ifconfig inetd netcat netstat nslookup ping rdate rlogin route ssh traceroute

Searching	find grep locate whatis whereis

Documentation	apropos help man

Miscellaneous	bc dc cal expr lp od sleep true and false

List of Unix commands

This article is issued from Wikipedia - version of the 10/30/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.