groupadd Command in Linux: Creating User Groups

The groupadd command in Linux creates a user group. This command writes information to the /etc/group and /etc/gshadow files.

The most common options are:

• -f: Forces the command output to succeed even if the group name or groupid already exist;
• -g N: Assigns the number N to the Group ID;
• -p PASSWORD: assigns a password to a group, so that a user must know the password to join a group

Examples:

To create a group called contabilidade:

# groupadd contabilidade

# cat /etc/group|grep contabilidadecontabilidade:x:1006:

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