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59Reading ls -l output
60Owner, group, and others
61rwx: read, write, execute
62What chmod does
63chmod: syntax and usage
64chmod: practical examples
65chmod: edge cases and pitfalls
66Common mistakes with chmod
67What chown does
68chown: syntax and usage
69chown: practical examples
70chown: edge cases and pitfalls
71Common mistakes with chown
72umask: default permissions
73Special bits: setuid, setgid, sticky
74Users, groups, and /etc/passwd
75sudo: doing things as root
76Adding and removing users
77Managing groups
78su vs. sudo
79SSH keys for authentication

59Reading ls -l output
60Owner, group, and others
61rwx: read, write, execute
62What chmod does
63chmod: syntax and usage
64chmod: practical examples
65chmod: edge cases and pitfalls
66Common mistakes with chmod
67What chown does
68chown: syntax and usage
69chown: practical examples
70chown: edge cases and pitfalls
71Common mistakes with chown
72umask: default permissions
73Special bits: setuid, setgid, sticky
74Users, groups, and /etc/passwd
75sudo: doing things as root
76Adding and removing users
77Managing groups
78su vs. sudo
79SSH keys for authentication

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Lesson 72 of 3,142·3. Permissions and UsersFree lesson

umask: default permissions

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