chmod 320 Permission Explained
Summary: chmod 320 gives the owner write/execute, the group write, and everyone else no access.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 3 | |||
| Group (g) | 2 | |||
| Others (o) | 0 |
chmod 320 filename
chmod 320 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 3 |
-wx |
Write and execute | Can enter and create/delete files, but not list |
| Group (g) | 2 |
-w- |
Write only (rarely useful) | No practical effect without x |
| Others (o) | 0 |
--- |
No access | Cannot list, enter, or modify |
Is chmod 320 Safe?
Moderate
- Every member of the group can modify this file.
- Scripts need read permission to run; only compiled binaries can be executed without it.
Common Use Cases
320 is uncommon in standard Linux setups. The closest widely used permission is chmod 700.
chmod 320 Command Examples
# Apply using octal mode
chmod 320 filename
# Apply using equivalent symbolic mode
chmod u=wx,g=w,o= filename
# Recursive command warning:
chmod -R 320 /path/to/dir
# Note: -R applies the same mode to files and directories. Use find to treat them separately:
find /path/to/dir -type d -exec chmod 320 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
--wx-w---- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 457 makes new directories 320. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 320 mean?
chmod 320 gives the owner write/execute, the group write, and everyone else no access. In octal notation, the owner receives 3 (write/execute), the group receives 2 (write), and others receive 0 (no access).
Is chmod 320 safe?
chmod 320 is classified as Moderate. Every member of the group can modify this file.
What is chmod 320 in symbolic notation?
In symbolic notation, chmod 320 is represented as -wx-w----. You can apply this permission using the equivalent symbolic command "chmod u=wx,g=w,o= filename".
Related Permissions
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