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Apurv Gujjar
Apurv GujjarDevOps & Cloud Engineer
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Interview DocumentationLinuxExplain Linux file permissions (read, write, execute).
Back to all Linux questions
Q1

Explain Linux file permissions (read, write, execute).

💬Answer
  • Core Permissions:
    • Read (r): Allows viewing the contents of a file or listing files in a directory.
    • Write (w): Allows modifying file contents or adding/deleting files in a directory.
    • Execute (x): Allows running a file as a program or entering a directory.
  • Numeric Values:
    • Read = 4
    • Write = 2
    • Execute = 1
  • Combinations: These values sum up to form permission sets, e.g., 7 (4+2+1 = rwx), 5 (4+1 = r-x), and 4 (r--).

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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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