How can i check PEAR mail is installed on my server by shell script?

Question

I want to install PEAR mail on AWS Elastic Beanstalk applicatoin. By .ebextension i can run this command

container_commands: 
  01-command: 
    command: pear install mail
  02-command: 
    command: pear install net_smtp

I am getting some eorr like 'pear mail is already installed '
How can i check pear mail is already installed by shell script. So i can check and install. Or any other way to install without any error ?

Thanks

Answer 1

You can instruct beanstalk to ignore errors if your command fails:

container_commands: 
  01-command: 
    command: pear install mail
    ignoreErrors: true