chmod 252 Permission Explained
Summary: chmod 252 gives the owner write, the group read/execute, and everyone else write.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 2 | |||
| Group (g) | 5 | |||
| Others (o) | 2 |
chmod 252 filename
chmod 252 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) | 5 |
r-x |
Read and execute | Can list and enter |
| Others (o) | 2 |
-w- |
Write only (rarely useful) | No practical effect without x |
Is chmod 252 Safe?
Critical Risk
- Anyone on the system can modify or replace this file.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
252 is uncommon in standard Linux setups. The closest widely used permission is chmod 750.
chmod 252 Command Examples
# Apply using octal mode
chmod 252 filename
# Apply using equivalent symbolic mode
chmod u=w,g=rx,o=w filename
# Recursive command warning:
chmod -R 252 /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 252 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
--w-r-x-w- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 525 makes new directories 252. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 252 mean?
chmod 252 gives the owner write, the group read/execute, and everyone else write. In octal notation, the owner receives 2 (write), the group receives 5 (read/execute), and others receive 2 (write).
Is chmod 252 safe?
chmod 252 is classified as Critical Risk. Anyone on the system can modify or replace this file.
What is chmod 252 in symbolic notation?
In symbolic notation, chmod 252 is represented as -w-r-x-w-. You can apply this permission using the equivalent symbolic command "chmod u=w,g=rx,o=w filename".
Related Permissions
Change one bit: