Hi again, I have this code from a script I want to modify: open FP, "find . -ls |" From what I understand, this will pipe the output of find() to the FP filehandle. Then you can loop through it like a standard text file: 
while (my $file = <FP>) {
    chomp $file;
    ...
}

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What is the advantage of using open FP, "find . -ls |" and then looping through the handle, as opposed to using backticks? 
my @files = `find . -ls`;
foreach my $line (@lines) {
   chomp $file;
   ...
}

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Also, regarding system(), it returns the exact same thing as using backticks, plus the final element of @files is the exit status (0 in this case for success). I thought system() was only supposed to return an exit status, not full output TL;DR -- why did the coder use a pipe in open() instead of using backticks or system()? FYI, this script basically reads the find . -ls output and writes a file listing files and their sizes.

In reply to Interacting with the shell ( backticks, system(), open -| ) by jktstance

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