Re^2: Help needed in reading a very large file line by line

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Re^3: Help needed in reading a very large file line by line by jethro (Monsignor) on Feb 28, 2012 at 11:43 UTC
Just post your script (between <c> </c> tags) and we can tell you what is wrong.	[reply]
Re^3: Help needed in reading a very large file line by line by tobyink (Canon) on Feb 28, 2012 at 13:26 UTC
Chances are that either `$/` is set to something silly instead of `"\n"`, or your file has no line break characters in it (or at least, very long lines).	[reply] [d/l] [select]
Re^3: Help needed in reading a very large file line by line by Anonymous Monk on Feb 28, 2012 at 11:10 UTC
:) Impossible, see `$ perl -le " while(<FILEHANDLE>) " syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors.` [download] See How do I post a question effectively?	[reply] [d/l]
Re^3: Help needed in reading a very large file line by line by MegART (Novice) on Dec 01, 2014 at 17:22 UTC
Hi, I see this is an old thread, but still, I would like to share that I have expereciend something similar. I wanted to do a very simple search and replace on a huge ASCII file (around 4GB) using the magic filehandle <>. The thing is that I cannot use seek or whichever method that requires fixed length of records. Also my $/ is set to "\n" and I know that the lines are not incredibly long. Any ideas? Here is a piece of code: `my $fh = new FileHandle; @ARGV = ($file); open $fh, ">test.txt"; while ($line = <>) { $line =~ s/$search/$replace/g; print $fh $line; }` [download]	[reply] [d/l]
Re^4: Help needed in reading a very large file line by line by choroba (Cardinal) on Dec 01, 2014 at 17:29 UTC
Can you `print "$.: $line"` [download] and check at what line it fails? لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply] [d/l]