String

• Generate DNA sequences
• DNA Reverse Complement
• Shuffle a sequence

Regular expression

• Matching repetitions
• Start position of a match
• Minimum matching
• grep、sed、awk、perl等对正则表达式的支持的差别

Data structure

• Hash of arrays
• Multi-level Hash
• Intersection and Difference between Arrays

System

• Path of script
• Run unix command in Perl
• mkdir in perl

Network

• Perl & LWP
• Perl & GD

Module

• Install Perl Module
• Write Perl Module

Others

• Debugging Perl
• Special Variables in Perl
• Min and Max in Perl
• Progress Bar