chmod 152 Permission Explained
Summary: chmod 152 gives the owner execute, the group read/execute, and everyone else write.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 1 | |||
| Group (g) | 5 | |||
| Others (o) | 2 |
chmod 152 filename
chmod 152 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 1 |
--x |
Execute only | Can enter (cd) but not list contents |
| 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 152 Safe?
Critical Risk
- Anyone on the system can modify or replace this file.
- Even the owner cannot modify this file without changing permissions first.
- Scripts need read permission to run; only compiled binaries can be executed without it.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
152 is uncommon in standard Linux setups. The closest widely used permission is chmod 750.
chmod 152 Command Examples
# Apply using octal mode
chmod 152 filename
# Apply using equivalent symbolic mode
chmod u=x,g=rx,o=w filename
# Recursive command warning:
chmod -R 152 /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 152 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
---xr-x-w- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 625 makes new directories 152. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 152 mean?
chmod 152 gives the owner execute, the group read/execute, and everyone else write. In octal notation, the owner receives 1 (execute), the group receives 5 (read/execute), and others receive 2 (write).
Is chmod 152 safe?
chmod 152 is classified as Critical Risk. Anyone on the system can modify or replace this file.
What is chmod 152 in symbolic notation?
In symbolic notation, chmod 152 is represented as --xr-x-w-. You can apply this permission using the equivalent symbolic command "chmod u=x,g=rx,o=w filename".
Related Permissions
Change one bit: