Quick Beginnings for UNIX**

Username, User ID, Group Name, and Instance Name Rules

Usernames or User IDs are the identifiers assigned to individual users. When naming users, groups, or instances, see General Naming Rules.

In addition, the name you specify:

• Can contain 1 to 8 characters

• Cannot be any of the following:

  • USERS

  • ADMINS

  • GUESTS

  • PUBLIC

  • LOCAL

• Cannot begin with:

  • IBM

  • SQL

  • SYS

• Cannot include accented characters

• In general, when naming users, groups, or instances:

  OS/2

  Use uppercase names.

  UNIX

  Use lowercase names.

  Windows 32-bit operating systems

  Use any case.

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