<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Professor,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">While reading and writing the files, what permissions do we need to set for the written file (for user, group and other)?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Also, in the example: </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">tcp file1 dir</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I assume that the written file will have the name &#39;file1&#39; in directory &#39;dir&#39;, is that correct?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thank you,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Aubhik Mazumdar</div></div>