Re^2: Reading a CSV file

[alchang]

Thanks for your response. I copied and pasted your code but there still was no output. I'll try to obtain Text::CSV and see if that works.

[Limbic~Region]

alchang ,
If there was no output at all, then you likely have an empty file. That code should have done 1 of 2 things:

1.  Generated an error because you were unable to open the file
2.  Printed every line in the file

Since it did neither, I must assume that the file exists, you can open it, but that it is empty. Using a module will not change that. I recommended it because CSV can be tricky but you aren't yet at the tricky part.

Update: Since you have said elsewhere in the thread that the file is 63MB - consider that you may have two files with the same name in different directories. Since you have not told perl to open a file with an absolute path, it is looking for a file in the same directory that you executed perl from.

[alchang]

I think i gave Perl a path to find the file but there is still no output. To be sure I did the right thing here's what I changed:

open(my $fh, '<', 'C:\bio stuff\Aubrey\'s project\dev.csv') or die "Un
+able to open 'dev.csv' for read

Is that what you meant?

[Limbic~Region]

alchang,
Yes, that is an absolute path. I apologize if the following sounds a bit hand-holdy, but it is difficult to troubleshoot without seeing what you see:

C:\>cd "bio stuff\Aubrey's project"
C:\bio stuff\Aubrey's project>more dev.csv

hit q once you are satisfied that the file is not empty

C:\bio stuff\Aubrey's project>notepad testit.pl

Copy and paste my code exactly into testit.pl - without absolute path

C:\bio stuff\Aubrey's project>perl testit.pl

If that produces no output and all the steps leading up to it appear to be successful, I give up.

[radiantmatrix]

The backslash is an escape character! If you want to use a windows-style path, you need to escape the backslashes:

open(my $fh, '<', 'C:\\bio stuff\\Aubrey\'s project\\dev.csv')