AWS code deploy agent not able to install?

Hi i am trying to install code deploy agent in my ec2 agent but not able to succeed I m following below steps

sudo apt-get update
sudo apt-get install awscli
sudo apt-get install ruby2.0
cd /home/ubuntu
sudo aws s3 cp s3://bucket-name/latest/install . --region region-name
sudo chmod +x ./install
sudo ./install auto 

but ./install file is missing for me . But I dont think its a problem with AMI as I used same steps with same AMI in different ec2 instance. Any one has any idea. please help me.