chmod 271 Permission Explained
Summary: chmod 271 gives the owner write, the group read/write/execute, and everyone else execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 2 | |||
| Group (g) | 7 | |||
| Others (o) | 1 |
chmod 271 filename
chmod 271 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) | 1 |
--x |
Execute only | Can enter (cd) but not list contents |
Is chmod 271 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
271 is uncommon in standard Linux setups. The closest widely used permission is chmod 775.
chmod 271 Command Examples
# Apply using octal mode
chmod 271 filename
# Apply using equivalent symbolic mode
chmod u=w,g=rwx,o=x filename
# Recursive command warning:
chmod -R 271 /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 271 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
--w-rwx--x 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 506 makes new directories 271. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 271 mean?
chmod 271 gives the owner write, the group read/write/execute, and everyone else execute. In octal notation, the owner receives 2 (write), the group receives 7 (read/write/execute), and others receive 1 (execute).
Is chmod 271 safe?
chmod 271 is classified as Moderate. Every member of the group can modify this file.
What is chmod 271 in symbolic notation?
In symbolic notation, chmod 271 is represented as -w-rwx--x. You can apply this permission using the equivalent symbolic command "chmod u=w,g=rwx,o=x filename".
Related Permissions
Change one bit: