<table cellpadding="5"><tr><th style="border-bottom: 1px solid black;text-align:left;">Filename Expansion Symbol</th><th style="border-bottom: 1px solid black;text-align:left;">Purpose</th></tr><tr><td>'''*'''</td><td>Asterisk (*) to represent '''0 or more characters'''</td></tr><tr><td>'''?'''</td><td>Question mark (?) to represent '''exactly one character (any character)'''</td></tr><tr><td>'''[ ]'''</td><td>Square brackets ([ ]) to represent and match for the '''character enclosed within the square brackets'''.<br>It represents ONLY ONE character - '''its like a Question Mark (?) but with restrictions'''</td></tr><tr><td>'''[! ]'''</td><td>Square brackets containing an exclamation mark immediately after the open square bracket ([! ])<br>to represent and match and '''OPPOSITE''' character for the character enclosed within the square brackets.</td></tr></table>