chmod 753 Permission Explained
Summary: chmod 753 gives the owner read/write/execute, the group read/execute, and everyone else write/execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 7 | |||
| Group (g) | 5 | |||
| Others (o) | 3 |
chmod 753 filename
chmod 753 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) | 3 |
-wx |
Write and execute | Can enter and create/delete files, but not list |
Is chmod 753 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
753 is uncommon in standard Linux setups. The closest widely used permission is chmod 755.
chmod 753 Command Examples
# Apply using octal mode
chmod 753 filename
# Apply using equivalent symbolic mode
chmod u=rwx,g=rx,o=wx filename
# Recursive command warning:
chmod -R 753 /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 753 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-rwxr-x-wx 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 024 makes new directories 753. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 753 mean?
chmod 753 gives the owner read/write/execute, the group read/execute, and everyone else write/execute. In octal notation, the owner receives 7 (read/write/execute), the group receives 5 (read/execute), and others receive 3 (write/execute).
Is chmod 753 safe?
chmod 753 is classified as Critical Risk. Anyone on the system can modify or replace this file.
What is chmod 753 in symbolic notation?
In symbolic notation, chmod 753 is represented as rwxr-x-wx. You can apply this permission using the equivalent symbolic command "chmod u=rwx,g=rx,o=wx filename".
Related Permissions
Change one bit: