use of uninitialized value $key in hash element at newperlfile.pl line 85, <$CFILE> line 3

my config.txt file reads like this

chipid::1925
subversid::0001

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So the warning comes at line 3 of config.txt but you think your file has only 2 lines. The conclusion is that your config.txt file has at least a third line, probably with no content in it. The warning alerts you to that fact and so is very helpful. If you remove the erroneous third line from config.txt the warning should disappear.

In reply to Re: use of uninitialized value in hash element problem by hippo
in thread use of uninitialized value in hash element problem by mrityunjaynath

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