Polar Bear questions

Polar Bear answers

• Perl regex interval to match strings that correspond to hexadecimal numbers
• Multiple filehandles opening the same file - is it a good practice?
• How to document parameters in Perl POD
• Conditional subexpression replacement using regular expressions
• Compare 2 CSV Huge CSV Files and print the differences to another csv file using perl
• Perl: How to check the max width of word present in columns of array after reading from file?
• Treat Two Columns as One