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Apurv Gujjar
Apurv GujjarDevOps & Cloud Engineer
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Interview DocumentationLinuxWhat is the numeric permission system (like 755, 644)?
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Q2

What is the numeric permission system (like 755, 644)?

💬Answer
  • Structure: Uses a three-digit sequence representing permissions for User (Owner), Group, and Others (e.g., 755 or 644).
  • Calculation: Formed by adding numeric values: Read (4), Write (2), and Execute (1).
  • Examples:
    • 755: User has full permissions (rwx = 7), while Group and Others have read/execute permissions (r-x = 5).
    • 644: User has read/write permissions (rw- = 6), while Group and Others have read-only permissions (r-- = 4).

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Apurv Gujjar - DevOps & Cloud Engineer
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Apurv Gujjar

DevOps & Cloud Engineer

Specialized in:DevOpsAWSGCPKubernetesTerraformDocker
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