I am having some trouble grasping the concept of perl -i. perhaps we could discuss the most efficient/elegant way to open a file and replace all occurences of the word foo with bar, using only one Open.. right now i have to do this: 
open(FH,"myfile") or die "e tu brutus?\n"; # clobber it.
while(<FH>)
  if ($_ =~ m/foo/){
    $line = $_;
    $line =~ s/foo/bar/g;
  }
  else{
    $line = $_;
  }
  $file = $file . $line;
}
open (FH,"> myfile") or die "e tu brutus?\n";
print FH $file

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can we discuss how to do this with the -i modifier, if this is the right tool, or how other people handle this common task? Your wisdom is much appreciated. -malloc

In reply to perl -i by malloc

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