Zatan _Linux_004 <User Management Group 2_>

1: a common set of operating scenarios:

• Group: Basic group (private group), an additional group
• New group: groupadd group account name
• Specifies the GID New: groupadd -g GID Group Account Name: groupadd -g 1000 group1
• Add a user to the group:
  • Change user attributes: usermod -g 1000 user01
  • Adding a user into the group: gpasswd -a user02 group1
  • Group within the definition of a plurality of users (comma separated): gpasswd -M user1, u2, u3 group1;
• Remove users from the group: gpapsswd -d user01 group1
• To delete a group account: groupdel group account name: groupdel group1; Note: userdel -r username, the basic set of information is deleted

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2: User identity:

• Identifies the user's body: id username;
• User belongs to group identity: groups username;
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• View user login information: users, who, w

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