Alert via my own test script failed

Following scripts were added in hobbit-alerts.cfg: HOST=linux_1 SERVICE=disk SCRIPT echo "my_linux disk went to warning state" |smbclient -M cici SCRIPT echo "disk reached warning state" |write hobbit

The color of disk changed while state reached warning level, but scripts had no effect.

Or is syntax of the script wrong? how to write my own alert script?

Thanks very much.

Case