I am trying hard to run the below line with sudo, I am not able to handle the password prompt in my script. You are perfectly correct about your observation about permission problem. I have two option for that, either to use ssh command in a shell file and then call it like below: 
`/bin/sh /tmp/rockpingping.sh $nodeName > /tmp/result.txt`;

[download]
The above solution is working, but it is not a good way of doing things. And the second option is using sudo. I am not succeeding sudo option where it password prompt is popping up.
cheers Rock 
$flag = system("sudo /bin/sh /tmp/sshping.sh > /tmp/result.txt" );    
+  ##  '>' is the redirect operator and test.sh is the shell script
If ($flag == 0 )
{
    // The success result will be stored at result.txt
    // need to open this file and then use it
}
else
{
    // failure case
}

[download]

In reply to Re^6: Shell to Perl conversion by rockmountain
in thread Shell to Perl conversion by rockmountain

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.