bash-2.00$ uname
HP-UX
bash-2.00$ ulimit -a
core file size (blocks)     2097151
data seg size (kbytes)      1048576
file size (blocks)          unlimited
max memory size (kbytes)    unlimited
open files                  2048
pipe size (512 bytes)       16
stack size (kbytes)         256000
cpu time (seconds)          unlimited
max user processes          5001
virtual memory (kbytes)     unlimited
##</code><code>##

my $contents;
open(my $fh, '<', 'control_report_file') or die "cannot open file control_report_file $!";
{
   local $/;
   $contents = <$fh>;
}
close($fh);

##</code><code>##

bash-2.00$ perl test.pl
Out of memory!