Develop Tools

Specify permissions

You can change permissions anywhere: octal, symbolic, or checkbox.

Theme

File name/directory name Frequently used settings

octal number Examples: 644, 755, 4755 symbolic form Examples: rwxr-xr-x, -rw-r--r--, drwxr-xr-x

basic privileges

Owner, group, and other read/write/execute privileges
	read r = 4	write w = 2	run x = 1	Total
owner	r	w	x	6
group	r	w	x	4
Other	r	w	x	4

special permissions

Setuid = 4 Run with owner privileges Setgid = 2 Inherit group permissions Sticky bit = 1 Restrict deletion of shared areas

Apply recursively to subordinates (-R）

Please select permission or enter octal/symbol format.

Result

Before copying, make sure you have the minimum permissions appropriate for your purpose and purpose.

octal number

644

symbolic form

-rw-r--r--

chmod command

chmod 644 -- example.txt

Permission description

Owner: Read/Write / Group: Readable / Others: Readable

Safety confirmation

About this tool

Linux/Unix file permissions as octal numbersrwxYou can convert to chmod command while checking the notation.

Features

Mutual conversion between 3-digit and 4-digit octal numbers and symbolic formats
Setuid, Setgid, Sticky bits/S/t/TNotation
File/directory, recursive application, shell quoting of paths
777, 666, private key, special authority, warning about applying recursion

How to use

Specify the target and file name or preset.
Enter permissions in either checkbox, octal, or symbolic format.
Review the generated chmod commands and safety notes.
Check what you are running and the current owner before using the command.

Notes

The displayed warnings are a general verification aid and do not guarantee the safety of the system.
chmod -Rsets the same permissions for files and directories, so check the scope before executing.
It does not judge access controls other than chmod, such as ACL, SELinux, AppArmor, owner, and mount settings.

Privacy: The entered path, permissions, and calculation results are processed within the browser and are not sent or saved to the Develop Tools server.