At some point, you might want to update user's information apart from encrypted passwords. This section guides you on how to update Linux user info in an operating system.
There are many ways to update the user info. However, the most effective (yet very risky) way is to update the /etc/passwd manually.
In this case, you want to update it manually inside /etc/passwd file. For a full info, it is:
testo:x:1001:1001:Testo,0,012-3456789,03-45678912,supervisor floor B1:/home/testo:/bin/bashThis is interpreted as:
testox10011001Testo0012-345678903-45678912supervisor floor B1/home/testo/bin/bashYou should change the allowed fields them accordingly without removing any colon (:) or comma (,). Also, for obvious reasons, you can' t supply those symbols as values as well.
For those disallowed fields, there are other dedicated implementations for updating them. Hence, DO NOT mess with them.
That's all for updating user info.