CHMOD Commands Cheat Sheet

Here is a cli commands cheat sheet for CHMOD command, you can use this as a quick reminder for basic commands with a brief description for each of the commands.

What is CHMOD command?

Add some data here

        # Add execute for all (myscript.sh)
chmod a+x myscript.sh

# Set user to read/write/execute, group/global to read only (myscript.sh), symbolic mode
chmod u=rwx, go=r myscript.sh 

# Remove write from user/group/global (myscript.sh), symbolic mode
chmod a-w myscript.sh

# Remove read/write/execute from user/group/global (myscript.sh), symbolic mode
chmod = myscript.sh

# Set user to read/write and group/global read (myscript.sh), octal notation
chmod 644 myscript.sh

# Set user to read/write/execute and group/global read/execute (myscript.sh), octal notation
chmod 755 myscript.sh

# Set user/group/global to read/write (myscript.sh), octal notation
chmod 666 myscript.sh

# Roles
u - user (owner of the file)
g - group (members of file's group)
o - global (all users who are not owner and not part of group)
a - all (all 3 roles above)

# Numeric representations
7 - full (rwx)
6 - read and write (rw-)
5 - read and execute (r-x)
4 - read only (r--)
3 - write and execute (-wx)
2 - write only (-w-)
1 - execute only (--x)
0 - none (---)

# Delete ACL number 0 (MacOS):
# See: `man -M /usr/share/man chmod`
/bin/chmod -a# 0 /path/to/file
    

Check out the CHMOD command documentation .


You can also check our MegaSh cheatsheet tool, that has 150+ searchable linux cheat sheets in one page, so you never forget a command as you work again

Check Also

Best AI tools list