Perl

Table of Contents

• File and Path
• Data structure
• Math
• System
• Language
• Misc
• Parallel
• Performance
• Bio
• Tool
• CPAN

File and Path

• File::Path qw(make_path remove_tree) - Create or remove directory trees
• File::DirWalk Walk through a directory tree and run own code
• File::Find - Traverse a directory tree
• File::Spec - Portably perform operations on file names
• File::Basename - Parse file paths into directory, filename and suffix.
• File::Tee - replicate data sent to a Perl stream
• File::Copy - Copy files or filehandles
• Tie::File - Access the lines of a disk file via a Perl array

Data structure

• Set::IntervalTree - Perform range-based lookups on sets of ranges。区间树。
• Set::Bag - bag (multiset) class
• List::Compare - Compare elements of two or more lists
• Array::Diff - Find the differences between two arrays [attention: sort the array before comparison!!! It's a bug of the module]
• BerkeleyDB - 高效的嵌入式数据库编程库，可以保存任意类型的键/值对，而且可以为一个键保存多个数据。
• Heap - Perl extensions for keeping data partially sorted
• Sort::Fields - Sort lines containing delimited fields

Math

• use integer
• Math::Combinatorics - Perform combinations and permutations on lists

System

• threads and Thread::Queue，一个例子，我的例子《Using multi threads and message queue to do multi tasks（用多线程和队列来处理多任务）》

Language

• autodie 和 Try::Tiny 异常处理，例子
• Carp - alternative warn and die for modules

Misc

• Term::ANSIColor - Color screen output using ANSI escape sequences
• Number::Bytes::Human - Convert byte count to human readable format
• Expect - 使用 Perl 脚本实现交互式命令行程序的管理与测试自动化

Parallel

• Parallel::ForkManage - A simple parallel processing fork manager.
• Parallel::Runner - An object to manage running things in parallel processes.
• MCE - Many-Core Engine for Perl providing parallel processing capabilities

Performance

• 内存使用监控Memory Use：Memory::Usage（More）， Devel::Size， Devel::SizeMe（More），Devel::Leak
• CPU负载信息 Sys::Info::Device::CPU
• 函数运行时间 Devel::Profile
• Time::HiRes - High resolution alarm, sleep, gettimeofday, interval timers
• use Benchmark
• use Memoize - Make functions faster by trading space for time
• Tips for keeping Perl memory usage low
• Make your code run faster with Perl's secret turbo module

Bio

• https://github.com/hyphaltip/genome-scripts Genome Scripts used in fungal comparative genomics

Tool

• cpanminus - get, unpack, build and install modules from CPAN

CPAN

• Put your CPAN distributions on github
• How to convince Meta CPAN to show a link to the version control system of a distribution?
• Dist::Zilla is a program to make it easier to write, package, manage, and release free software.