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Linux / UNIX: Create Username or Groups in UPPER Case

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… add one }
  • Kamal September 10, 2008, 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

  • winter September 24, 2008, 3:53 am

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

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