Convert chmod permissions

For administrators and developers checking file rights before running a command, script or deployment.

Switch Unix permissions between symbolic and octal forms and get a chmod notation ready to use in a command or configuration.

How to use

1. Enter a Unix permission in octal form, such as 755, into the input area.
2. You can also type its symbolic form, such as rwxr-xr-x, if that is the notation you have.
3. Run the conversion to get the matching notation in the other format.
4. Review the rights given to owner, group and other users.
5. Copy the converted value into your command, script or configuration file.

Example

With the sample 755, look at the symbolic equivalent and check the owner, group and other permissions. This step helps prevent an overly open permission before you run a command.

Input

rwxr-xr-x

Output

rwxr-xr-x = 755

Limits and formats

• The tool converts permission notation; it does not change any file on your system.
• Special modes such as setuid, setgid or the sticky bit may need separate verification.
• A mistaken conversion can grant too much access, so inspect the result before applying it.
• On some systems, extended rights or access control lists add information beyond the classic notation.

Where processing happens

The conversion runs inside your browser. The value you enter stays local, is not sent to an outside service and is not stored by the page. You can convert another permission right away.

Frequently asked questions

What is the link between 755 and rwxr-xr-x?

They express the same permissions in different notations. Octal uses digits, while symbolic notation uses letters for read, write and execute, making the result easier to verify.

Can I convert several permissions at once?

The tool works on the value you provide. If you have several entries, convert them one by one or prepare a compatible file if the import option accepts your list.

Does the converter apply permissions to my files?

No, it only outputs a converted notation. You still need to place the result in the correct command and verify the rights before applying them.

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