chmod 751 Permission Explained
Summary: chmod 751 gives the owner read/write/execute, the group read/execute, and everyone else execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 7 | |||
| Group (g) | 5 | |||
| Others (o) | 1 |
chmod 751 filename
chmod 751 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 7 |
rwx |
Full access | Full access: list, enter, create, delete |
| Group (g) | 5 |
r-x |
Read and execute | Can list and enter |
| Others (o) | 1 |
--x |
Execute only | Can enter (cd) but not list contents |
Is chmod 751 Safe?
Low Risk
This permission configuration follows standard Linux access control principles with no elevated risk indicators.
Common Use Cases
751 is uncommon in standard Linux setups. The closest widely used permission is chmod 755.
chmod 751 Command Examples
# Apply using octal mode
chmod 751 filename
# Apply using equivalent symbolic mode
chmod u=rwx,g=rx,o=x filename
# Recursive command warning:
chmod -R 751 /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 751 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-rwxr-x--x 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 026 makes new directories 751. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 751 mean?
chmod 751 gives the owner read/write/execute, the group read/execute, and everyone else execute. In octal notation, the owner receives 7 (read/write/execute), the group receives 5 (read/execute), and others receive 1 (execute).
Is chmod 751 safe?
chmod 751 is classified as Low Risk. It follows standard Linux access patterns.
What is chmod 751 in symbolic notation?
In symbolic notation, chmod 751 is represented as rwxr-x--x. You can apply this permission using the equivalent symbolic command "chmod u=rwx,g=rx,o=x filename".
Related Permissions
Change one bit: