Web Spider – Best Software for Ubuntu

wget, that is installed by default, has such a feature through the -c option:

   -c
   --continue
       Continue getting a partially-downloaded file.  This is useful when
       you want to finish up a download started by a previous instance of
       Wget, or by another program.

       ...

       Note that -c only works with FTP servers and with HTTP servers that
       support the "Range" header.

You can submit a form using wget, using the --post-data option. First, look at the form that page uses:

<form name="acceptedForm" id="acceptedForm" action="submitAgreement" method="post">
...
        <button id="agree_terms_use" name="agreementValue" type="submit" value="Agree">Agree</button>  &nbsp; 
        <button id="disagree_terms_use" name="agreementValue" type="submit" value="Do Not Agree">Do Not Agree</button>

Typically, the value of the action attribute is used to get the target URL, which becomes https://frbservices.org/EPaymentsDirectory/submitAgreement. The names of the form elements become the parameters. Then you need to save the cookies that you get from accepting the agreement. From this SO post, we can construct the command needed:

wget --post-data="agreementValue=Agree" https://frbservices.org/EPaymentsDirectory/submitAgreement --save-cookies cookie.txt --keep-session-cookies --delete-after

Then, we can use these cookies to download the file:

wget --load-cookies=cookie.txt 'https://frbservices.org/EPaymentsDirectory/FedACHdir.txt?AgreementSessionObject=Agree'