Delete "~/.cahce/sessions" and promt log out

#!/bin/bash
DIR="~/.cache/sessions/"

delete_sessions(){
    # Deletes whatever is in DIR
    rm -r -- "$DIR"
}

is_directory(){
    if [ -d "$DIR" ]; then
        delete_sessions
    else
        echo "wtf man, it's not there?!"
    fi
}

promt_logout() {
    xfce4-session-logout
}

is_directory
promt_logout