Wake script for spline workstations

wake-ws.sh

#!/bin/bash

if [[ "$#" -ne 1 ]]; then
    echo "Usage: $0 <host>" 1>&2
    exit 1
fi

HOST="$1"

declare -A HOSTS

HOSTS=( 
        ["chop"]="xx:xx:xx:xx:xx:xx"
        ["knister"]="xx:xx:xx:xx:xx:xx"
        ["wuff"]="xx:xx:xx:xx:xx:xx"
    )

C=48

wakeonlan "${HOSTS[$HOST]}" && \
while true; do 
    ping -c 1 -W 1 "$HOST" &> /dev/null && break 
    sleep 5
    let C=C-1 
    if [ $C -eq 0 ]; then
        exit 1;
    fi
done