Linux & Sysadmin
Linux Chmod Permissions Calculator
Calculate numerical and symbolic Linux file permissions with an interactive permission matrix. Generate terminal commands without memorizing octal values.
Linux Chmod Permissions Calculator & Command Helper
Calculate octal (755, 644, 777) and symbolic (-rwxr-xr-x) Linux file permissions with zero guesswork.
Octal Notation (Numerical)
755
Symbolic Notation (ls -la)
drwxr-xr-x
chmod 755 /var/www/html
Interactive Permission Matrix
Owner (User)7
Group5
Others (Public)5
Target Path:
Standard Linux Presets
Octal (755) & Symbolic (-rwxr-xr-x)
Recursive (-R) Flag Toggle
Standard Production Presets
1-Click Terminal Command Copy
How to Use Linux Chmod Permissions Calculator & Command Generator (Step-by-Step Guide)
No software installation required. Complete your task in 3 easy steps directly in your browser.
1
Check Desired Permissions
Select Read, Write, and Execute checkboxes for Owner, Group, and Others.
2
Inspect Numbers & Flags
View real-time octal notation (e.g. 755) and symbolic notation (e.g. -rwxr-xr-x).
3
Copy Terminal Command
Copy the ready-to-run chmod command with your file or directory path.
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Frequently Asked Questions
Standard best practice is 755 (drwxr-xr-x) for directories and 644 (-rw-r--r--) for files.