I want to go with while loop.
Why? Given what you're doing in your second code sample, you could do it as well on the items of the @file array in your first code sample.

For example: 

open(FILE, "<myfile.txt");
@file = reverse <FILE>;
foreach (@file) {
   chomp;                              # --> Note: no need to chomp, i
+t just forces you to add the \n again when you print
   next unless /\S/; # skip blank lines  --> Note: this is useless giv
+en that you print only line matching the /Passed CLEAN/ pattern
   if (/Passed CLEAN/) { #search string Passed CLEAN
      print "$_ \n"; # print ALL lines containing Passed CLEAN

   }
}

[download]
Or, simplifying a bit the syntax: 
open(FILE, "<myfile.txt");
@file = reverse <FILE>;
foreach (@file) {
   print if /Passed CLEAN/;
}

[download]
That should work fine unless your file is truly huge and won't fit into memory. If your file is too big, then the File::ReadBackwards is the only simple solution;

In reply to Re: print a file from Bottom to Top (reverse order) by Laurent_R
in thread print a file from Bottom to Top (reverse order) by theravadamonk

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