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How can I read top in bash only for one user? I don't want it to display data for other users.

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2 Answers 2

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From man top:

-u : Monitor by user as:     -u somebody
     Monitor only processes with an effective UID or user name matching
     that given.

So, if you run top -u root you'll get only root processes.

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  • By the way, as of v1.33.1, this does not work with busybox's top.
    – Aaron Mason
    Dec 1, 2021 at 4:39
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    In a running instance of top, press u to filter processes by user. From the help (use ? to show it): "u,U,o,O . Filter by: 'u'/'U' effective/any user; 'o'/'O' other criteria"
    – Matthias Braun
    Jan 28, 2022 at 18:39
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If you already started top, you can also press the u key and enter the username in the status line.

In case you want to show all users again (make the selection undone), press the = key or respectively the + key to clear the selection criteria in all top windows.

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