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When creating a new user, I see this below box. What are the different between them?

enter image description here

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up vote 1 down vote accepted

uid is unix user id and if you do not specify, the system will generate one for you. User name actually is called full name, which is not used in login. Therefore only the login is required.

The actual Esx or esxi server stores data like so

jlogin:x:501:501:John Login:/home/jlogin:/bin/bash

Here the first field is login, the third is uid, and the 5th is the user name.

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Thank you for your helpful answer. – Nam G VU Mar 1 '15 at 9:00

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