How to Install Pig on Ubuntu 14.04

1. Download pig tar file on below location
http://mirrors.sonic.net/apache/pig/latest/

2. extract the tar file in Downloads folder

3. create folder for pig
sudo mkdir /usr/lib/pig

4. move the extracted folder to /usr/lib/pig
sudo mv Downloads/pig-0.15.0 /usr/lib/pig/

5. update .bashrc with pig home path information

export PIG_HOME=/usr/lib/pig/pig-0.15.0
export PATH=$PATH:$PIG_HOME/bin

6. make it effective by running below command
source .bashrc

7. type 'pig' to open pig shell
pig