Chmod Calculator
Calculate Linux file permissions: tick boxes to get 755 or rwxr-xr-x and the chmod command.
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How to use the Chmod Calculator
- 1
Tick read, write and execute for the owner, group and others, or type a number like 755.
- 2
Add setuid, setgid or the sticky bit if you need them.
- 3
Copy the chmod command for your file or folder.
Frequently asked questions
What does 755 mean?
The owner can read, write and execute (7 = 4 + 2 + 1); the group and others can read and execute (5 = 4 + 1). It is common for folders and scripts.
Which permissions should a website use?
Usually 644 for files and 755 for folders. Avoid 777, which lets anyone on the server change the files.
What is the fourth digit?
An optional leading digit sets the special bits: 4 for setuid, 2 for setgid and 1 for the sticky bit, e.g. 1777 for /tmp.