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w command in Linux with Examples

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  • Last Updated : 27 May, 2019

w command in Linux is used to show who is logged on and what they are doing. This command shows the information about the users currently on the machine and their processes. The header shows, in this order, the current time, how long the system has been running, how many users are currently logged on, and the system load averages for the past 1, 5, and 15 minutes. The following entries are displayed for each user: login name, the tty name, the remote host, login time, idle time, JCPU, PCPU, and the command line of their current process. The JCPU time is the time used by all processes attached to the tty. It does not include past background jobs but does include currently running background jobs. The PCPU time is the time used by the current process, named in the “what” field.


w [options] user [...]



  • w -h: This option don’t print the header.
    w -h

  • w -u: This option will ignore the username while figuring out the current process and cpu times.
    w -u

  • w -s : This option uses the short format. It will not print the login time, JCPU or PCPU times.
    w -s

  • w -f : This option will toggle printing the from (remote hostname) field. The default as released is from field which not be printed. Although your system administrator or your distribution maintainer may have compiled a version in which the from field is shown by default.
    w -f

  • w –help: This option will display help message and exit.
    w --help

  • w -i : This option will display IP address instead of hostname for from field.
    w -i

  • w -V : This option will display version information.
    w -V

  • w -o : This option will print blank space for idle times less than one minute.
    w -o

  • w user : This option will show information about the specified user only.
    w user

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