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Filesystem Permissions in Linux/Unix

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Avatar for Arash Badie Modiri Arash Badie Modiri
November 14, 2012
100
1

Filesystem Permissions in Linux/Unix

Avatar for Arash Badie Modiri

Arash Badie Modiri

November 14, 2012

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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

  12. None

  13. Linux From Scratch 7.1 published

  14. MasS: Metal as a Service

  15. Charming With

  16. RHES vs. Ubuntu Server Edition