Filesystem Permissions in Linux/Unix

Transcript

1. Filesystem Permissions In Linux and other Unix-like Operating Systems Part One: What's different? Part Two: How to manage? Part Three: What's new?
2. Files are files, directories are files and devices are files.
3. Viewing, modifying or executing
4. Viewing (read) := 4 Modifying (write) := 2 Executing (execute) := 1
5. It's your file. Yours.
6. Owner Group Others
7. $ ls -l /home/arashbm/percise.iso -rw-rw-r-- 1 arashbm arashbm (…) precise.iso
8. -rw-rw-r-- Owner rw- 4+2+0=6 Group rw- 4+2+1=7 Other r-- 4+0+0=4 674
9. $ chmod MODE FILE $ chmod 674 percise.iso $ chmod ug+rwx percise.iso $ chmod o-rx percise.iso
10. $ chown OWNER[:GROUP] FILE $ chown arashbm:arashbm\ percise.iso $ chown root percise.iso
11. NVIDIA joins Linux Foundation After Intel & AMD
13. Linux From Scratch 7.1 published
14. MasS: Metal as a Service
15. Charming With
16. RHES vs. Ubuntu Server Edition