`chmod`

3 commands

Give everyone read access to a directory tree
Caution
```
chmod -R a+rX path
```
Recursively grants read to all users, plus execute on directories and on files that are already executable.
- permissions
- files
tab next value · ↵ copy · o open · f favorite
Make a file executable
```
chmod +x file
```
Adds execute permission so the file can be run as a program or script.
- permissions
- files
tab next value · ↵ copy · o open · f favorite
Set permissions with an octal mode
```
chmod 644 file
```
Replaces the permissions of the file with the octal mode, such as 644 for owner write and read for everyone.
- permissions
- files
tab next value · ↵ copy · o open · f favorite