Unix Permission Calculator

Translate a three-digit Unix permission mode to symbolic permissions. Exactly three octal digits (0–7); ordinary owner/group/other bits only.

Free to useNo sign-upRuns in your browser

Enter your details

Enter the inputs, then select Decode permissions.

Your result

Enter your details

Result will appear here

How Unix Permission Calculator works

Translate a three-digit Unix permission mode to symbolic permissions.

Exactly three octal digits (0–7); ordinary owner/group/other bits only. No setuid, setgid, sticky bit or filesystem modification.

Concept diagram for Unix Permission Calculator, showing three-digit octal mode input and the supported output. — Concept diagram; the three operation images are actual browser captures.

How to use Unix Permission Calculator

Follow the labelled inputs.

Enter three-digit octal mode

Replace the example with three-digit octal mode. The field labels specify the expected format and units.

Decode permissions

Unix Permission Calculator: input and settings in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

Check the remaining inputs

This tool uses one input. Check the supported range before running it. Exactly three octal digits (0–7); ordinary owner/group/other bits only.

Decode permissions

Unix Permission Calculator: tool result in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

Run, review and save

Select Decode permissions. Review the displayed text, then copy it or download the result text.

Decode permissions

Unix Permission Calculator: review the details in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

Examples and uses for Unix Permission Calculator

Check the supplied example

The starting example produces rwxr-xr-x. Translate a three-digit Unix permission mode to symbolic permissions.

Decode permissions

Developer input and configuration represented by document cards. — Prepare the input. Concept illustration.

Use your own inputs

Read the labels for three-digit octal mode. Exactly three octal digits (0–7); ordinary owner/group/other bits only.

Decode permissions

A developer example flowing from input to reviewed output. — Inspect an example. Concept illustration.

Record a reviewed result

Copy the displayed text into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.

Decode permissions

Developer output handed to the next stage of a workflow. — Use the result in your workflow. Concept illustration.

How to read the result

Read the units and assumptions with the output.

Translate a three-digit Unix permission mode to symbolic permissions.

Exactly three octal digits (0–7); ordinary owner/group/other bits only. No setuid, setgid, sticky bit or filesystem modification.

Decode permissions Decode permissions

A developer result reviewed alongside its source. — Review the returned output. Concept illustration.

Supported input and limits

Check the stated scope before you run it.

Exactly three octal digits (0–7); ordinary owner/group/other bits only. No setuid, setgid, sticky bit or filesystem modification.

The input stays in this browser. Copy result and Download save the same displayed text.

Decode permissions Decode permissions

Input format and assumptions reviewed for a developer task. — Check format and assumptions. Concept illustration.

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Unix Permission Calculator: common questions

Answers about using Unix Permission Calculator and understanding its results.

What inputs and assumptions apply?

Exactly three octal digits (0–7); ordinary owner/group/other bits only. No setuid, setgid, sticky bit or filesystem modification.

How can I save the result?

Copy result copies the displayed text. Download saves the same text as a TXT file. Processing runs in this browser without an account.

Decode permissions with your input

Check the displayed text, then copy or download it.

Decode permissions