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Red Hat Certified System Administrator EX200 (RHEL 10) · Domain 9: Manage users and groups

Creating, deleting and modifying local groups and memberships (groupadd -g, usermod -aG, gpasswd)

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Last reviewed September 25, 2026 · Leer en español

Groups let you grant permissions to several users at once: give a directory to a group and control membership instead of changing file permissions for each person. Local groups live in /etc/group, with group passwords and administrators in /etc/gshadow. On RHEL, each user also gets a private group of the same name, so shared access needs extra groups.

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