====== shell 命令 ======

| [[diff_patch]]  | [[sed]]  | [[awk]]  |
| [[screen]]      | [[vim]]  | [[dd]]   |

  * [[shell中的文本菜单]]
  * [[通配符和正则表达式]]
  * [[shell编程]]
  * [[shell函数]]
  * [[shell编程常用命令]]
  * [[shell自定义模块]]
  * [[维护常用命令]]
  * [[常用正则]]
  * [[shell自定义补全]]
  * [[快捷键]]
  * [[小程序]]