chmod 033 Permission Explained
Summary: chmod 033 gives the owner no access, the group write/execute, and everyone else write/execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 0 | |||
| Group (g) | 3 | |||
| Others (o) | 3 |
chmod 033 filename
chmod 033 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 0 |
--- |
No access | Cannot list, enter, or modify |
| Group (g) | 3 |
-wx |
Write and execute | Can enter and create/delete files, but not list |
| Others (o) | 3 |
-wx |
Write and execute | Can enter and create/delete files, but not list |
Is chmod 033 Safe?
Critical Risk
- Anyone on the system can modify or replace this file.
- Every member of the group can modify this file.
- 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
033 is uncommon in standard Linux setups. The closest widely used permission is chmod 000.
chmod 033 Command Examples
# Apply using octal mode
chmod 033 filename
# Apply using equivalent symbolic mode
chmod u=,g=wx,o=wx filename
# Recursive command warning:
chmod -R 033 /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 033 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-----wx-wx 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 744 makes new directories 033. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 033 mean?
chmod 033 gives the owner no access, the group write/execute, and everyone else write/execute. In octal notation, the owner receives 0 (no access), the group receives 3 (write/execute), and others receive 3 (write/execute).
Is chmod 033 safe?
chmod 033 is classified as Critical Risk. Anyone on the system can modify or replace this file.
What is chmod 033 in symbolic notation?
In symbolic notation, chmod 033 is represented as ----wx-wx. You can apply this permission using the equivalent symbolic command "chmod u=,g=wx,o=wx filename".
Related Permissions
Change one bit: