How to add kafka-topics.sh script to PATH?

I’m following following tutorial:
http://hortonworks.com/hadoop-tutorial/simulating-transporting-realtime-events-stream-apache-kafka/

[root@sandbox bin]# kafka-topics-sh –create –zookeeper localhost:2181 –replication-factor 1 –partitions 1 –topic truckevent
-bash: kafka-topics-sh: command not found