When using the code below for modify each line of a large textfile (100MB) I get the message "Out of memory" after some time. I am told this is because @file = <HANDLE>; opens the entire file at once instead of reading one line at the time with while(<>).

How do I use while(<>) to manage the same task as below but for large files by reading line by line? 
open (HANDLE, "list.txt") or die "can't open file";
@file = <HANDLE>;
foreach $row (@file) { 
open NEWFILELIST, ">>newlist.txt" or die "Cannot open newlist.txt for 
+append :$!";
print NEWFILELIST "outputting modified line from list.txt\n";
close NEWFILELIST;
 }
close (HANDLE);

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Thank you,
Ritter

In reply to How can I process large files with while(<>)? by Ritter

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