This article will help you understanding how to get the version number of Apache Pig you are using. Apache Pig version can be get from HDFS terminal as well as from the Pig grunt.
From HDFS Terminal, use the below command:
pig –version
From the grunt, whenever your job invokes mapreduce, you will be updated with the version of Hadoop along with the version of Apache Pig as shown below during the Map Reduce process.
I am using CDH version 5.10 hence I get the below information.
Big Data and SQL 
One comment