chmod 230 Permission Explained
Summary: chmod 230 gives the owner write, the group write/execute, and everyone else no access.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 2 | |||
| Group (g) | 3 | |||
| Others (o) | 0 |
chmod 230 filename
chmod 230 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 2 |
-w- |
Write only (rarely useful) | No practical effect without x |
| Group (g) | 3 |
-wx |
Write and execute | Can enter and create/delete files, but not list |
| Others (o) | 0 |
--- |
No access | Cannot list, enter, or modify |
Is chmod 230 Safe?
Moderate
- Every member of the group can modify this file.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
230 is uncommon in standard Linux setups. The closest widely used permission is chmod 600.
chmod 230 Command Examples
# Apply using octal mode
chmod 230 filename
# Apply using equivalent symbolic mode
chmod u=w,g=wx,o= filename
# Recursive command warning:
chmod -R 230 /path/to/dir
# Note: -R applies the same mode to files and directories. Use find to treat them separately:
find /path/to/dir -type f -exec chmod 230 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
--w--wx--- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 547 makes new directories 230. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 230 mean?
chmod 230 gives the owner write, the group write/execute, and everyone else no access. In octal notation, the owner receives 2 (write), the group receives 3 (write/execute), and others receive 0 (no access).
Is chmod 230 safe?
chmod 230 is classified as Moderate. Every member of the group can modify this file.
What is chmod 230 in symbolic notation?
In symbolic notation, chmod 230 is represented as -w--wx---. You can apply this permission using the equivalent symbolic command "chmod u=w,g=wx,o= filename".
Related Permissions
Change one bit: