A username that fulfills whatever requirements are placed upon it; being of a certain minimum, maximum or total length, not including certain words, having at least a certain number of letters and numbers, not including certain symbols.
Identification
It means that the user name which you have chosen is void on the grounds of it already existing or due to the use of certain symbols which are prohibited.
Every user account has its own directory. Every user on a system has a unique account name. You must have a valid user account to start a UNIX session.
Identification
To insure that the users input is valid.
Bat
The user profile name identifies the user to the server. This user profile name is also known as the user ID. It is the name the user types in the User prompt on the Sign On display.
Yes it is a valid name..
Yes you do need to have a valid legal license.
My user name is same, I did change my e-mail whith other name. What I can do to write my user name. I do have change my user name?
First name: Wiki.Last name : user
user name is screen name