Memo to change permissions in absolute modes with chmod
- 600 user: read/write; group, other: none file
- 644 user: read/write; group, other: read file
- 755 user: read/write/execute; group, other: read/execute directories, programmes
- 700 user: read/write/execute; group, other: none directories, programmes
- 711 user: read/write/execute; group, other: execute directories
To learn more about how to set permissions with chmod and octal-mode read How linux works page 35-37, or pick a book about GNU/Linux and check the index for permissions and/or chmod.
To learn more about octal numbers (that’s the number system the octal-mode of chmod uses) read chapters 10 and 12 of the book Code: the hidden language of computer hardware and software by Charles Petzold - so you can come up with chmod code without looking them up.
personal computing command-line interface (cli) gnu linux trisquel shell literacy office applications wiki permissions chmod
