chmod 764 Permission Explained
Summary: chmod 764 gives the owner read/write/execute, the group read/write, and everyone else read.
| Class | Read (4) | Write (2) | Execute (1) | Octal |
|---|---|---|---|---|
| Owner (u) | 7 | |||
| Group (g) | 6 | |||
| Others (o) | 4 |
chmod 764 filename
chmod 764 Breakdown
| Class | Digit | Symbolic | On a file | On a directory |
|---|---|---|---|---|
| Owner (u) | 7 |
rwx |
Full access | Full access: list, enter, create, delete |
| Group (g) | 6 |
rw- |
Read and write | Can list names, cannot enter |
| Others (o) | 4 |
r-- |
Read only | Can list names, but not enter |
Is chmod 764 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.
Common Use Cases
764 is uncommon in standard Linux setups. The closest widely used permission is chmod 664.
chmod 764 Command Examples
# Apply using octal mode
chmod 764 filename
# Apply using equivalent symbolic mode
chmod u=rwx,g=rw,o=r filename
# Recursive command warning:
chmod -R 764 /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 764 {} +
# Verify permissions
stat -c '%a %A %n' filename # Linux
stat -f '%Lp %Sp %N' filename # macOS
# Example ls -l output:
-rwxrw-r-- 1 alice staff 1024 Jan 15 10:00 example.txtumask Relationship
A umask of 013 makes new directories 764. Test umask values with our interactive Umask Calculator.
Frequently Asked Questions
What does chmod 764 mean?
chmod 764 gives the owner read/write/execute, the group read/write, and everyone else read. In octal notation, the owner receives 7 (read/write/execute), the group receives 6 (read/write), and others receive 4 (read).
Is chmod 764 safe?
chmod 764 is classified as Moderate. Every member of the group can modify this file.
What is chmod 764 in symbolic notation?
In symbolic notation, chmod 764 is represented as rwxrw-r--. You can apply this permission using the equivalent symbolic command "chmod u=rwx,g=rw,o=r filename".
Related Permissions
Change one bit: