Batch scrips not working

I just tested it successfully. Can you please provide the error received

#!/bin/bash  
yum update -y  
yum install httpd -y  
service httpd start  
cd /var/www/html  
echo "Hello Cloud Gurus" > index.html

As Ben noticed it works, but you have copied #!/bin/bash without #.

This will make the script not use bash to run the commands and it will fail.