Bash脚本高级指南（Advanced Bash-Scripting Guide）是学习shell的经典指南，其中内容详细，实例丰富，且根据Bash的发展不断更新，此资源是Advanced Bash-Scripting Guide的最新版本6.6，更新于2012.11.27，是本人下载官方html版后制作而成，方便大家离线使用。

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...

You will most often use Bash functions to make your shell life easier; instead of typing out complex command pipelines, ...

After the beginners guide, the Advanced Bash Scripting Guide is a good read however be warned that some information and examples found there, such as the first couple ...