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Chmod Calculator
Unix file permission calculator — toggle or type
Numeric (Octal)
Owner
Read
Write
Execute
Group
Read
Write
Execute
Other
Read
Write
Execute
rwxr-xr-x
755
Numeric
0755
Octal
chmod 755 filename
Common Presets
644 (file default)
755 (dir default)
777 (full access)
600 (private)
400 (read-only)
700 (owner only)
666 (rw all)
750 (group read)
664 (shared file)