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How do I have Perl send the password to a program that prompts for a password

( #89741=categorized question: print w/ replies, xml ) Need Help??
Contributed by turumkhan on Jun 19, 2001 at 21:36 UTC
Q&A  > input and output


Description:

I have to run a command in my perl script by using the back ticks. when i execute that command it asks me for password. Now i wanna pass that password without typing it. for clear understanding of the problem here it goes:
`run the command line`;
now it asks me for password. What i want to do is capture is prompt and pass the password in the script itself rather then typing it all the times. So how do i caputre when the output when it prompts me for the password.

Answer: how do i redirect the output to a var
contributed by dragonchild

Instead of using backtick, try using either system or opening the command as a pipe. Both of those should allow for greater control than backtick.

Answer: how do i redirect the output to a var
contributed by runrig

You may have to use Expect.pm

Answer: How do I have Perl send the password to a program that prompts for a password
contributed by ton

Give IPC::Open2 or IPC::Open3 a try.

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