files . Note, that newusers , useradd , and usermod will only create entries in /etc/subuid if subid ... subgid (5), useradd (8), userdel (8), usermod (8), user_namespacesfiles . Note, that newusers , useradd , and usermod will only create entries in /etc/subgid if subid ... subuid (5), useradd (8), userdel (8), usermod (8), user_namespacesMAIL_FILE variables are used by useradd , usermod , and userdel to create, move, or delete ... MEMBERS_PER_GROUP USERDEL_CMD USERGROUPS_ENAB usermod LASTLOG_UID_MAX MAIL_DIR MAIL_F…