chmod 675 Permission Explained
Summary: chmod 675 gives the owner read/write, the group read/write/execute, and everyone else read/execute.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 6 | |||
| Group (g) | 7 | |||
| Others (o) | 5 |
chmod 675 filename
chmod 675 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 6 |
rw- |
Read and write | Can list names, cannot enter |
| Group (g) | 7 |
rwx |
Full access | Full access: list, enter, create, delete |
| Others (o) | 5 |
r-x |
Read and execute | Can list and enter |
Is chmod 675 Safe?
Moderate
- Every member of the group can modify this file.
- Any user can read this file — never use it for secrets such as keys or .env files.
- Unusual: a lower class has permissions the class above it lacks.
Common Use Cases
675 is uncommon in standard Linux setups. The closest widely used permission is chmod 775.
chmod 675 Command Examples
# Apply using octal mode
chmod 675 filename
# Apply using equivalent symbolic mode
chmod u=rw,g=rwx,o=rx filename
# Recursive command warning:
chmod -R 675 /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 675 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-rw-rwxr-x 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 102 makes new directories 675. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 675 mean?
chmod 675 gives the owner read/write, the group read/write/execute, and everyone else read/execute. In octal notation, the owner receives 6 (read/write), the group receives 7 (read/write/execute), and others receive 5 (read/execute).
Is chmod 675 safe?
chmod 675 is classified as Moderate. Every member of the group can modify this file.
What is chmod 675 in symbolic notation?
In symbolic notation, chmod 675 is represented as rw-rwxr-x. You can apply this permission using the equivalent symbolic command "chmod u=rw,g=rwx,o=rx filename".
Related Permissions
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