chmod 041 Permission Explained
Summary: chmod 041 gives the owner no access, the group read, and everyone else execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 0 | |||
| Group (g) | 4 | |||
| Others (o) | 1 |
chmod 041 filename
chmod 041 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 0 |
--- |
No access | Cannot list, enter, or modify |
| Group (g) | 4 |
r-- |
Read only | Can list names, but not enter |
| Others (o) | 1 |
--x |
Execute only | Can enter (cd) but not list contents |
Is chmod 041 Safe?
Low Risk
- Even the owner cannot modify this file without changing permissions first.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
041 is uncommon in standard Linux setups. The closest widely used permission is chmod 440.
chmod 041 Command Examples
# Apply using octal mode
chmod 041 filename
# Apply using equivalent symbolic mode
chmod u=,g=r,o=x filename
# Recursive command warning:
chmod -R 041 /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 041 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
----r----x 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 736 makes new directories 041. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 041 mean?
chmod 041 gives the owner no access, the group read, and everyone else execute. In octal notation, the owner receives 0 (no access), the group receives 4 (read), and others receive 1 (execute).
Is chmod 041 safe?
chmod 041 is classified as Low Risk. Even the owner cannot modify this file without changing permissions first.
What is chmod 041 in symbolic notation?
In symbolic notation, chmod 041 is represented as ---r----x. You can apply this permission using the equivalent symbolic command "chmod u=,g=r,o=x filename".
Related Permissions
Change one bit: