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Parse UNIX file permissions

Explain a symbolic permission string and its octal representation.

Install in Serialize

What it can do

  • Read owner, group, and other bits
  • Identify the file-type prefix
  • Calculate octal permissions

How the recipe works

Parse UNIX file permissions

Translate each rwx triplet into its permission bits.

Demonstration

Sample input

-rwxr-x---

Expected result

750

When to use it

  • Linux labs
  • Incident notes
  • Checking deployment permissions

Adapt it

Include special bits such as setuid, setgid, or sticky when they appear in the symbolic string.

Source and verification

Adapted from University Politehnica of Bucharest: introductory security lab. The explanation and sample are written for Serialize, use synthetic or documentation-safe data, and are checked against the current operation catalogue. The workflow runs locally without an external API call.

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