为了自动化，在Bash / KSH中自动将值传递给脚本菜单

Question

Trying to make a small script and cron job it in order to automate a task. Said script runs another script which has already been created, grabs the output, emails to specified recipients, and cleans up the output. I've got it almost down however am running into one major issue. The script that mine is running has a menu on the outset. That is to say, running the script by itself manually, i would have to select option 1 in order to get the output i want (the only other option, 2, is quit.)

How can I automatically enter (or simulate entering) the value 1 into the other script, so it does not hang when in a cron job waiting for user input?

Is there a sane way to do this?

Thanks in Advance.

Answer 1

You could try something as simple as using yes | command yes | command if answering yes is all that is needed. Otherwise you probably want to use expect to drive the imaginary keyboard for you.

http://expect.sourceforge.net/

Using autoexpect to record your session is a convenient way to come up with rough draft expect scripts as well.