chmod 275 Permission Explained
Summary: chmod 275 gives the owner write, the group read/write/execute, and everyone else read/execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 2 | |||
| Group (g) | 7 | |||
| Others (o) | 5 |
chmod 275 filename
chmod 275 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) | 7 |
rwx |
Full access | Full access: list, enter, create, delete |
| Others (o) | 5 |
r-x |
Read and execute | Can list and enter |
Is chmod 275 Safe?
Moderate
- Every member of the group can modify this file.
- Any user can read this file — never use it for secrets such as keys or .env files.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
275 is uncommon in standard Linux setups. The closest widely used permission is chmod 775.
chmod 275 Command Examples
# Apply using octal mode
chmod 275 filename
# Apply using equivalent symbolic mode
chmod u=w,g=rwx,o=rx filename
# Recursive command warning:
chmod -R 275 /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 275 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
--w-rwxr-x 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 502 makes new directories 275. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 275 mean?
chmod 275 gives the owner write, the group read/write/execute, and everyone else read/execute. In octal notation, the owner receives 2 (write), the group receives 7 (read/write/execute), and others receive 5 (read/execute).
Is chmod 275 safe?
chmod 275 is classified as Moderate. Every member of the group can modify this file.
What is chmod 275 in symbolic notation?
In symbolic notation, chmod 275 is represented as -w-rwxr-x. You can apply this permission using the equivalent symbolic command "chmod u=w,g=rwx,o=rx filename".
Related Permissions
Change one bit: