Deleting rows in a file based on condition

I have the following perl script that reads a fixed-width file and replaces values in various sections of the file.<br
/><br/> -------------------------------------------<br /> open (IN, '< in.txt');<br /> open (OUT, '>
out_test.txt');<br/><br /> while (<IN>) {<br /><br />           chomp;<br /><br />           $first_section =
substr$_, 0, 381;     # extract the first section of the record<br />           $facilityno = substr $_, 381, 10;    #
extractthe facilityno field<br />           $second_section = substr $_, 391, 1056;        # extract the second section
ofthe record<br />           $requestor_section=" " x 500;<br />   # $requestor_section = substr $_, 1446, 499; #
extractrequestor section of record<br />           $third_section = substr $_, 1946, 4748; # extract third section of
record<br/>           <br />           # print out the file with changed facilityno value ...<br /><br />          
printOUT "$first_section$\0039007300$\$second_section$\$requestor_section$\$third_section\n";<br />           <br />
}<br/><br /> close (IN);<br /> close (OUT);<br /> ------------------------------------------------<br /><br /> I want
toplace an "if...then" condition on the $facilityno value; such that if the $facilityno value = 0000000000, delete the
record(e.g., don't print out that row); rather skip that row and continue printing out the remaining rows.<br /><br />
Anyadvice is very much appreciated.<br /><br />