Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

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.

Please (register and) log in if you wish to add an answer



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others about the Monastery: (12)
    As of 2014-07-28 19:32 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My favorite superfluous repetitious redundant duplicative phrase is:









      Results (207 votes), past polls