Linux参考卡的命令，VI / VIM子的，和正则表达式。
The famous AT Computing Linux/UNIX Reference Card which has been used by many System Administrators over the past 25 years is now available for Android.
The Reference Card app provides quick access to the most used commands for Linux, subcommands for VI/VIM and an overview of the basic and extended regular expression syntax.
Join our G+ community to provide feedback and get access to beta versions.
https://plus.google.com/u/0/communities/110704484761810603123
The AT Computing Linux/UNIX Reference Card is released under GPL version 3.
Source code is available at https://github.com/atcomputing/reference-card