How to use special characters while using useradd in RHEL 9 and later?
Issue
- Why getting an error as "useradd: invalid user name" while creating a new user?
- Is there any way to create userIDs using special character?
- How to create an userid with special characters?
- How to check an integrity of the users and authentication information?
Environment
- Red Hat Enterprise Linux (RHEL)
- 9.x
- 10.x
- useradd.
- shadow-utils.
- pwck.
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