W (Unix)

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The command w on many Unix-like operating systems provides a quick summary of every user logged into a computer, what that 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 (this will, of course, vary between systems):

[server]:~ smithj$ 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

Unix command line programs ( [ view] • [ talk] • [ edit] )
File and file system management:	cat \| chdir/cd \| chmod \| chown \| chgrp \| cp \| du \| df \| fdupes \| file \| fsck \| ln \| ls \| lsof \| mkdir \| more \| mount \| mv \| pwd \| rcp \| rm \| rmdir \| split \| touch \| tree
Process management:	anacron \| at \| chroot \| cron/crontab \| kill \| nice \| ps \| sleep \| time \| timex \| top \| renice \| wait
User Management/Environment:	env \| finger \| id \| locale \| mesg \| passwd \| su \| sudo \| uname \| uptime \| w \| who \| write
Text processing:	awk \| cut \| diff \| ex \| head \| iconv \| join \| less \| more \| nkf \| paste \| sed \| sort \| tail \| tr \| uniq \| wc \| xargs
Shell programming:	echo \| expr \| unset	Printing:	lp
Communications: inetd \| netstat \| ping \| rlogin \| traceroute	Searching: egrep \| fgrep \| find \| grep \| strings	Miscellaneous: banner \| bc \| cal \| man \| uname \| wall \| yes

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W (Unix)

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