Chmod Calculator
Calculate Unix file permissions with an interactive chmod calculator. Click checkboxes or type an octal number.
Permissions Grid
|
Owner
|
Group
|
Others
|
|
|---|---|---|---|
|
Read
4
|
|||
|
Write
2
|
|||
|
Execute
1
|
|||
| Value | 7 | 5 | 5 |
Command Preview
$
chmod
755
file.txt
Octal Notation
755
Symbolic Notation
-
r
w
x
r
w
x
r
w
x
Common Presets
Understanding Unix Permissions
Read (4)
Allows viewing file contents or listing directory contents. For files, you can open and read the file. For directories, you can list the files inside.
Write (2)
Allows modifying file contents or adding/removing files in a directory. For files, you can edit or truncate. For directories, you can create or delete files.
Execute (1)
Allows running a file as a program or entering a directory with cd. Scripts need execute permission to run directly.
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