Re^2: call tree analysis using perl

Hi okol thank u for the response but im getting error msgs

Name "main::Data" used only once
readline() on unopened filehandle DATA
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Re^3: call tree analysis using perl by Eliya (Vicar) on Feb 15, 2012 at 09:03 UTC
As there is no `Data` in that script, I suppose you wrote `while (<Data>){` [download] This is not the same as `while (<DATA>){` because Perl is case-sensitive.	[reply] [d/l] [select]
Re^4: call tree analysis using perl by stallion (Acolyte) on Feb 15, 2012 at 11:30 UTC
I used DATA also but still its throwing up the same error.	[reply]
Re^5: call tree analysis using perl by Eliya (Vicar) on Feb 15, 2012 at 11:37 UTC
Then you've likely removed the __END__ part of the script, which is the data that can be accessed via the file handle DATA. When Perl sees a __DATA__ or __END__ section, it makes the data following it available via the then pre-opened file handle DATA. See perldata.	[reply]