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elearning:workbooks:centos:8:admin:l106 [2021/10/24 19:57] – created adminelearning:workbooks:centos:8:admin:l106 [2021/10/27 04:16] (Version actuelle) – admin
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-**Important** : Note that user names under Linux are limited to 32 characters and can contain upper case characters, lower case characters, numbers (except as the first character of the user name) and the majority of punctuation characters. However certain utilities such as **useradd** do not recognise upper case characters, lower case characters, numbers, punctuation characters (except **_** and **.**. useradd also accepts the **$** charcater, but only as the last character of the user name in which case the account name is considered to be a machine. In addition, certain utilities limit the number of chracters to just **8**.+**Important** : Note that user names under Linux are limited to 32 characters and can contain upper case characters, lower case characters, numbers (except as the first character of the user name) and the majority of punctuation characters. However certain utilities such as **useradd** are not case sensitive and do not accept numbers or punctuation characters (except **_** and **.** and the **$** character, but only as the last character of the user name in which case the account name is considered to be a machine.) In addition, certain utilities limit the number of chracters to just **8**.
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