Software Shinobi
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57 lines
2.6 KiB
Markdown
Executable File
# The `w` command
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The `w` command displays information about the users that are currently active on the machine and their [processes](https://www.computerhope.com/jargon/p/process.htm).
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### Examples:
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1. Running the `w` command without [arguments](https://www.computerhope.com/jargon/a/argument.htm) shows a list of logged on users and their processes.
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```
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w
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```
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2. Show information for the user named *hope*.
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```
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w hope
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```
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### Syntax:
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```
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finger [-l] [-m] [-p] [-s] [username]
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```
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### Additional Flags and their Functionalities:
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|**Short Flag** |**Long Flag** |**Description** |
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|:---|:---|:---|
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|`-h`|`--no-header`|Don't print the header.|
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|`-u`|`--no-current`|Ignores the username while figuring out the current process and cpu times. *(To see an example of this, switch to the root user with `su` and then run both `w` and `w -u`.)*|
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|`-s`|`--short`|Display abbreviated output *(don't print the login time, JCPU or PCPU times).*|
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|`-f`|`--from`|Toggle printing the from *(remote hostname)* field. The default as released is for the from field to not be printed, although your system administrator or distribution maintainer may have compiled a version where the from field is shown by default.|
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|`--help`|<center>-</center>|Display a help message, and exit.|
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|`-V`|`--version`|Display version information, and exit.|
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|`-o`|`--old-style`|Old style output *(prints blank space for idle times less than one minute)*.|
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|*`user`*|<center>-</center>|Show information about the specified the user only.|
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### Additional Information
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The [header](https://www.computerhope.com/jargon/h/header.htm) of the output 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](https://www.computerhope.com/jargon/l/load.htm) averages for the past 1, 5, and 15 minutes.
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The following entries are displayed for each user:
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- login name the [tty](https://www.computerhope.com/jargon/t/tty.htm)
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- name the [remote](https://www.computerhope.com/jargon/r/remote.htm)
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- [host](https://www.computerhope.com/jargon/h/hostcomp.htm) they are
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- logged in from the amount of time they are logged in their
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- [idle](https://www.computerhope.com/jargon/i/idle.htm) time JCPU
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- PCPU
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- [command line](https://www.computerhope.com/jargon/c/commandi.htm) of their current process
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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.
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The PCPU time is the time used by the current process, named in the "what" field.
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