DevOps Utilities
Chmod Calculator
Interactive file permission calculator with numeric & symbolic notation, presets, umask calculator, and ready-to-use commands.
Permission Matrix
Read 4
Write 2
Execute 1
Value
Owner
7rwx
Group
5r-x
Others
5r-x
Type 3 octal digits (0-7)
Common Presets
Umask Calculator
e.g. 022, 077, 0027
New files644
New directories755
Symbolic (files)rw-r--r--
Result
Numeric Notation
755
Symbolic Notation
rwxr-xr-x
chmod Command
chmod 755 ./file.sh Breakdown
Owner (u)
rwx
Read, Write, Execute Group (g)
rwx
Read, Execute Others (o)
rwx
Read, Execute