tldr/pages/common/who.md

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# who
> Display who is logged in and related data (processes, boot time).
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/who-invocation.html>.
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- Display the username, line, and time of all currently logged-in sessions:
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`who`
- Display information only for the current terminal session:
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`who am i`
- Display all available information:
`who -a`
- Display all available information with table headers:
`who -a -H`