Using CURL to post form data to a webpage [closed]

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I need to post one attribute value present in a form to server using curl.

<form action="process.php" method="post">
     <input tupe="text" name="userName" />
</form>.

Now I want to post this form to the server. How can I achive it using curl.

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you can use the option "-d" for posting data.

curl -d "userName=narendra" http://example.com/process.php