in reply to Error Undefined subroutine &main::OPEN called at C:\Perl\sku_corr2.pl line 8.

Perl is case-sensitive. Change OPEN to lower-case open. Same for print, split and close.

See also: use strict and warnings

  • Comment on Re: Error Undefined subroutine &main::OPEN called at C:\Perl\sku_corr2.pl line 8.

In Section Seekers of Perl Wisdom