chmod 370 Permission Explained

Notice: This is an unusual permission set: some classes have more access than the class above them. It is rarely correct in practice.

Octal

370

Symbolic

-wxrwx---

Binary

011 111 000

Risk Level

Moderate

Summary: chmod 370 gives the owner write/execute, the group read/write/execute, and everyone else no access.

Class	Read (4)	Write (2)	Execute (1)	Octal
Owner (u)				3
Group (g)				7
Others (o)				0

setuid (4) setgid (2) sticky bit (1)

Octal

Symbolic

Target File / Path

-R Recursive -v Verbose

370

-wxrwx---

Owner: write/execute · Group: read/write/execute · Others: no access

chmod 370 filename

Moderate Every member of the group can modify this file.

View the full chmod 370 guide →

chmod 370 Breakdown

Class	Digit	Symbolic	On a file	On a directory
Owner (u)	`3`	`-wx`	Write and execute	Can enter and create/delete files, but not list
Group (g)	`7`	`rwx`	Full access	Full access: list, enter, create, delete
Others (o)	`0`	`---`	No access	Cannot list, enter, or modify

Is chmod 370 Safe?

Moderate

Every member of the group can modify this file.
Scripts need read permission to run; only compiled binaries can be executed without it.
Unusual: a lower class has permissions the class above it lacks.

Common Use Cases

370 is uncommon in standard Linux setups. The closest widely used permission is chmod 770.

chmod 370 Command Examples

# Apply using octal mode
chmod 370 filename

# Apply using equivalent symbolic mode
chmod u=wx,g=rwx,o= filename

# Recursive command warning:
chmod -R 370 /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 370 {} +

# Verify permissions
stat -c '%a %A %n' filename    # Linux
stat -f '%Lp %Sp %N' filename   # macOS

# Example ls -l output:
--wxrwx--- 1 alice staff 1024 Jan 15 10:00 example.txt

umask Relationship

A umask of 407 makes new directories 370. Test umask values with our interactive Umask Calculator.

Frequently Asked Questions

What does chmod 370 mean?

chmod 370 gives the owner write/execute, the group read/write/execute, and everyone else no access. In octal notation, the owner receives 3 (write/execute), the group receives 7 (read/write/execute), and others receive 0 (no access).

Is chmod 370 safe?

chmod 370 is classified as Moderate. Every member of the group can modify this file.

What is chmod 370 in symbolic notation?

In symbolic notation, chmod 370 is represented as -wxrwx---. You can apply this permission using the equivalent symbolic command "chmod u=wx,g=rwx,o= filename".