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Chmod permission calculator

Convert octal, symbolic, and checkbox permissions into a chmod command.

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Using this tool

Convert permission digits, symbols, or checkboxes into a reviewable chmod command.

Actions: Process

Example

Select octal input and path file; output describes owner, group, and others permissions without modifying files.

Example action and settings

Action: Process
Input mode: Octal
File path: file

Input / action

754

Result / expected behavior

{
  "octal": "754",
  "symbolic": "rwxr-xr--",
  "owner": {
    "read": true,
    "write": true,
    "execute": true
  },
  "group": {
    "read": true,
    "write": false,
    "execute": true
  },
  "others": {
    "read": true,
    "write": false,
    "execute": false
  },
  "command": "chmod 754 -- file"
}

Available options: Input mode · Owner · Read · Owner · Write · Owner · Execute · Group · Read · Group · Write · Group · Execute · Others · Read · Others · Write · Others · Execute · File path

Scope and limitations

  • Does not inspect real file permissions; checkbox mode sets only ordinary read/write/execute bits.

Common mistakes

  • Octal digits must be 0–7; symbolic mode expects forms such as rwxr-xr--, not u+x expressions.

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