# Setting Folder Permissions

## Symbolic Notation

```bash
chmod u+rwx foldername     # Give owner read, write, execute
chmod g+rx foldername      # Give group read and execute
chmod o-rwx foldername     # Remove all permissions for others
chmod -R u+rw foldername   # Recursively give read/write to owner
```

## Numeric Notation

```bash
chmod 755 foldername       # rwxr-xr-x (owner: all, group: read+execute, others: read+execute)
chmod 700 foldername       # rwx------ (owner: all, no permissions for group or others)
chmod 777 foldername       # rwxrwxrwx (all permissions for everyone - use cautiously)
```

The -R flag makes it recursive within every subfolder beneath the folder referenced.

Common permission numbers:

755: Owner can do anything, others can read and execute
644: Owner can read/write, others can read
700: Only owner has access
777: Everyone has full access (generally avoid this)

## Setting Permissions to a Specific User

Use chown to set permissions to a specific user. (You'll almost always need to run with sudo)

```bash
# Change owner of a file/folder
chown username foldername

# Change both owner and group
chown username:groupname foldername

# Recursively change ownership (include all files and subfolders)
chown -R username foldername

# Change owner and group recursively
chown -R username:groupname foldername
```