chmod 602 Permission Explained
Summary: chmod 602 gives the owner read/write, the group no access, and everyone else write.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 6 | |||
| Group (g) | 0 | |||
| Others (o) | 2 |
chmod 602 filename
chmod 602 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 6 |
rw- |
Read and write | Can list names, cannot enter |
| Group (g) | 0 |
--- |
No access | Cannot list, enter, or modify |
| Others (o) | 2 |
-w- |
Write only (rarely useful) | No practical effect without x |
Is chmod 602 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
602 is uncommon in standard Linux setups. The closest widely used permission is chmod 600.
chmod 602 Command Examples
# Apply using octal mode
chmod 602 filename
# Apply using equivalent symbolic mode
chmod u=rw,g=,o=w filename
# Recursive command warning:
chmod -R 602 /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 602 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-rw-----w- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 175 makes new directories 602 and new files 602. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 602 mean?
chmod 602 gives the owner read/write, the group no access, and everyone else write. In octal notation, the owner receives 6 (read/write), the group receives 0 (no access), and others receive 2 (write).
Is chmod 602 safe?
chmod 602 is classified as Critical Risk. Anyone on the system can modify or replace this file.
What is chmod 602 in symbolic notation?
In symbolic notation, chmod 602 is represented as rw-----w-. You can apply this permission using the equivalent symbolic command "chmod u=rw,g=,o=w filename".
Related Permissions
Change one bit: