chmod 130 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

130

Symbolic

--x-wx---

Binary

001 011 000

Risk Level

Moderate

Summary: chmod 130 gives the owner execute, the group write/execute, and everyone else no access.

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

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

Octal

Symbolic

Target File / Path

-R Recursive -v Verbose

130

--x-wx---

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

chmod 130 filename

Moderate Every member of the group can modify this file.

View the full chmod 130 guide →

chmod 130 Breakdown

Class	Digit	Symbolic	On a file	On a directory
Owner (u)	`1`	`--x`	Execute only	Can enter (cd) but not list contents
Group (g)	`3`	`-wx`	Write and execute	Can enter and create/delete files, but not list
Others (o)	`0`	`---`	No access	Cannot list, enter, or modify

Is chmod 130 Safe?

Moderate

Every member of the group can modify this file.
Even the owner cannot modify this file without changing permissions first.
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

130 is uncommon in standard Linux setups. The closest widely used permission is chmod 500.

chmod 130 Command Examples

# Apply using octal mode
chmod 130 filename

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

# Recursive command warning:
chmod -R 130 /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 130 {} +

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

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

umask Relationship

A umask of 647 makes new directories 130. Test umask values with our interactive Umask Calculator.

Frequently Asked Questions

What does chmod 130 mean?

chmod 130 gives the owner execute, the group write/execute, and everyone else no access. In octal notation, the owner receives 1 (execute), the group receives 3 (write/execute), and others receive 0 (no access).

Is chmod 130 safe?

chmod 130 is classified as Moderate. Every member of the group can modify this file.

What is chmod 130 in symbolic notation?

In symbolic notation, chmod 130 is represented as --x-wx---. You can apply this permission using the equivalent symbolic command "chmod u=x,g=wx,o= filename".