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chmod calculator

Octal ⇄ symbolic permission modes, both directions: 754 is u=rwx,g=rx,o=r. Special bits (setuid, setgid, sticky) named for what they actually do.
Octal inSymbolic in75464460075517774755Octal modeConvert

- No umask arithmetic and no a+r/g-w operation modes — those apply a change to an EXISTING mode this page does not know. Full assignments and octal only.
- X (capital) is execute-only-if: resolved here as no-execute for a regular file, with the assumption stated — a directory target would differ.
- Permissions do not grant access alone: ownership, mounts, and higher-level ACLs all sit on top.
Nothing in yet

Paste, drop, or type to begin. Everything stays on this device.

octal in or symbolic in

Next door in Config

- docker run → compose (/config/docker)
- Glob tester (/dev/glob-tester)
All config tools (/config)

Canonical HTML: https://nutter.tools/config/chmod
Markdown version: https://nutter.tools/config/chmod/index.md
Plain-text version: https://nutter.tools/config/chmod/index.txt
Agent index: https://nutter.tools/llms.txt