Changes

<table border="1" cellspacing="0" cellpadding="5"><tr style="text-align:center;"><th>Operation</th><td>'''sftp Command'''<br>(Local Server)</td><td>'''sftp Command'''<br>(Remote Server)</td></tr><tr><td>Display current working directory</td><th>!pwd</th><th>pwd</th></tr><tr><td>Display directory contents</td><th>!ls</th><th>ls</th></tr><tr><td>Change directory location</td><th>lcd</th><th>cd</th></tr></table>

===Sending Emails with Attachment (mail)===