File device_token.sh of Package sentinel-proxy

#!/bin/sh
device_token="$(sed -n 's|[[:blank:]]*device_token[[:blank:]]*=[[:blank:]]*"\([0-9a-fA-F]*\)".*|\1|p' /etc/sentinel/proxy.cfg 2> /dev/null)"
if [ "$device_token" ]; then
    sentinel-device-token --validate="$device_token"
    exit $?
else
    echo "device_token = \"$(sentinel-device-token --create)\"" >> /etc/sentinel/proxy.cfg
    exit 0
fi