Something

#!/bin/bash


wiresless_stop () {
    ifconfig wlan0 down
}

wireless_start () {
    iwconfig wlan0 essid "blabla" key blabla
    dhcpcd wlan0
}



start() {
    wireless_start
}

stop() {
    wireless_stop
}

restart() {
    wireless_stop
    wireless_start
}