The test-file contents are of the form :

<PROP GUID="471138786526914052" EXPR="≪E The_Rounding_Unit=&Quot;1e-16&Quot; Absolute_Error_Tolerance=&Quot;1e-15&Quot; /&Gt";"/>

How do i extract the numerical values (in bold) from the above fileformat? I need to substitute it with the user input from the command line. 
while (<INFO>)
{
  @line=<INFO>; #will this help ?
  my @new2;
  if($var{param}) { list_param($var{param}); }
  if($var{the})   { list_the($var{the}); }

sub list_param($)
{        
   if ($line =~ m:Absolute_Error_Tolerance=&quot:)
      {
          $line=$line1;
          @new2=split(/\&quot;/,$line1);
          $line1=~s/$new2[1]/$G{param}/;
       }
}

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In reply to Re^2: using command line switches to edit file by kitty
in thread using command line switches to edit file by kitty

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