How do I programmatically input after a prompt with bash script?

Question

I have to run a bash script bash.sh that starts up a command line tool.

That command line tool has a prompt that says Please enter your email:

I then need a way to programmatically enter my email after the prompt.

I have tried simply myemail@email.com and I have tried echo myemail@email.com. Neither seem to work because the prompt does not allow me to run any more commands.

Is this doable?

Answer 1

Pass it to stdin:

command_line_tool <<< "my@email.com"

Further reading:

• http://www.tldp.org/LDP/abs/html/io-redirection.html
• http://tldp.org/LDP/abs/html/x17837.html