🔐CHMOD Calculator
Calculate Unix/Linux file permissions
| Category | Read | Write | Execute | Value |
|---|---|---|---|---|
| Owner | 6 | |||
| Group | 4 | |||
| Others | 4 |
Numeric
0644
Symbolic
u=rw-,g=r--,o=r--
Command
chmod 0644 filenamePlease set file permissions carefully, improper permissions may cause security issues
How to Use
The Chmod Calculator converts Linux file permissions between numeric notation (e.g., 755) and symbolic notation (e.g., rwxr-xr-x). Check permission checkboxes to auto-calculate the corresponding permission value.
FAQ
What does chmod 755 mean?
755 means the owner can read, write, and execute; group and others can read and execute. It is the most common directory permission.
What is the difference between chmod 644 and 755?
644 is for files (owner read/write, others read-only), 755 is for directories (owner full, others read and execute).