Why BBSVCNAME,BBHOSTSVC invalid in my alert script?

Hobbit 4.2.0 on RHEL4, BB client 1.08d on Windows XP cici.

hobbit-alerts.cfg: HOST=cici SERVICE=procs,svcs SCRIPT /home/hobbit/server/etc/alert-svcs.sh cici

Some environment variables,e.g,BBSVCNAME,BBHOSTSVC are used in alert script, but they actually weren't shown as specific service or process that triggered the alert while the service or process reached down, just generic string procs.

alert-svcs.sh #!/bin/sh echo "$BBHOSTSVC reached error state" |write hobbit echo "$BBSVCNAME reached error state" |write hobbit

The result displayed as below:

Message from hobbit at my_linux on <no tty> at 22:21 ... cici.procs reached error state EOF

Message from hobbit at my_linux on <no tty> at 22:21 ... procs reached error state EOF

Thanks a lot.

Regards, Case