Tips on useradd and usermod commands

Today it is back to the basis again.

useradd and usermod are very often used utilities. They are several useful paramenters which we can use for the creation and maintenance of user accounts.

• -c (Comments and Descriptions of the account. Using quotation is necessary if you are using multiple words
• -d (home directory of the account. If -m is used, copy the home directory as well)
• -e (Assign a expiration date for the account in MM/DD/YYYY format)
• -f (Set the number of days after a password expires until the account is permanently disabled. The default option is -l which disable this option)
• -g (primary group that the account belongs to)
• -G (list of groups that user belongs to)
• -l (Change login name of the account to the name supplied after -l option)
• -u (Change the userid for the account)