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Mohammad Ali Akbari
Asked: 2011-05-01 01:28:42 +0800 CST

How can I get user name by user ID?

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In my FTP client I can see files' owner ID (99).

How do I find out which user is the owner of these files?

linux centos

3 Answers

  1. Best Answer

    Shorter getent version (as long as you don't need just the username)

    $ getent passwd 99
nobody:x:99:99:Nobody:/:/sbin/nologin

    Works on at least CentOS 5.6 - will take username or uid as key.

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  2. $ getent passwd | awk -F: '$3 == 99 { print $1 }'
nobody
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  3. The quickest way to check it (if you have a shell access) is to: cat /etc/passwd | grep 99

    Btw UID 99 usually belongs to "nobody" user.

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