Linux / UNIX: Create Username or Groups in UPPER Case

by on September 8, 2008 · 2 comments· LAST UPDATED September 8, 2008

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Q. How do I create username or user groups in upper case under Linux / *BSD / UNIX operating systems?

You can create username and groups in upper case but I don't recommend it for following problems:
(a) Confusion - Some user may get confused with username VIVEK and vivek.

(b) Compatibility issues - Many protocols and certain libraries may produced compatibility issues.

The use of upper case letters for usernames or group names should be avoided under Linux / UNIX like operating systems.

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{ 2 comments… read them below or add one }

1 Kamal September 10, 2008 at 6:01 am

can be done by upgrading the package shadow-utils, after that you will be able to add the username with upper/lower characters

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2 winter September 24, 2008 at 3:53 am

You use the shift key on the keyboard. I’d say reason ‘a’ is the only one.

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