Whatsapp on Ubuntu Pidgin desktop client.

sudo apt-get install python python-dateutil python-argparse
sudo wget https://github.com/tgalal/yowsup/archive/master.zip
sudo unzip master.zip
cd yowsup-master/src
cp config.example yowsup-cli.config
vi yowsup-cli.config #(Write the following according to you)
#cc=34
#phone=34123456789 #(Phone number with country code)
#id=
#password=
chmod +x yowsup-cli
./yowsup-cli --requestcode sms --config yowsup-cli.config
#status: sent
#retry_after: 3605
#length: 6
#method: sms