{"id":"ugo-rwx-permissions-chmod","text":"File permissions use user/group/other (ugo) with read/write/execute (rwx). chmod sets permissions in symbolic (u+x) or octal (755) mode. chown changes ownership. umask sets default permissions.","truth_value":"IN","source":"repo:entries/2026/03/04/file-permissions.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"ugo-rwx-permissions-chmod","truth_value":"IN","reason":"premise"}]}}