C:\Steve\Dev\PerlMonks\P-2013-10-18@1712-DataMergeCSV>mergetest1.pl
Global symbol "@array1" requires explicit package name at
    C:\Steve\Dev\PerlMonks\P-2013-10-18@1712-DataMergeCSV\mergetest1.pl line 5.
Global symbol "@array1" requires explicit package name at 
    C:\Steve\Dev\PerlMonks\P-2013-10-18@1712-DataMergeCSV\mergetest1.pl line 18.
Bareword "abc" not allowed while "strict subs" in use at 
    C:\Steve\Dev\PerlMonks\P-2013-10-18@1712-DataMergeCSV\mergetest1.pl line 41.
Execution of C:\Steve\Dev\PerlMonks\P-2013-10-18@1712-DataMergeCSV\mergetest1.pl 
    aborted due to compilation errors.