Bash 学习笔记
第 1 页 共 28 页
Bash shell 学习笔记.........................................................................................................................2
1.
引言...................................................................................................................................2
2. Bash
简介..........................................................................................................................2
3.
启动 Bash..........................................................................................................................3
3.1Bash
启动选项.............................................................................................................3
3.2
交互式启动.................................................................................................................3
3.3
非交互式启动.............................................................................................................4
4.
注释与帮助.......................................................................................................................5
5.
变量与数组.......................................................................................................................5
5.1
变量分类.....................................................................................................................5
5.2
变量的命名与赋值.....................................................................................................5
5.3 declare
选项................................................................................................................6
5.4
位置和特殊参量........................................................................................................6
5.5
环境变量....................................................................................................................7
5.6
数组..........................................................................................................................10
5.7
算术运算..................................................................................................................11
5.8
字符串操作符...........................................................................................................12
6.
条件结构............................................................................................................................13
6.1 if
语句.......................................................................................................................13
6.2 case
语句...................................................................................................................15
6.2 select
语句.................................................................................................................15
6.
循环结构.........................................................................................................................16
7.1 for
命令.....................................................................................................................16
7.2 while
命令.................................................................................................................16
7.3 until
命令 ..................................................................................................................17
7.4
循环控制命令..........................................................................................................17
7.
函数.................................................................................................................................17
8. 输入输出.................................................................................................................18
9.1 标准 I/O..................................................................................................................18
9.2 重定向.....................................................................................................................19
9.3 Here 文档................................................................................................................19
9.4 字符串 I/O(echo、printf 和 read 命令)...........................................................19
10
作业控制............................................................................................................................20
11
命令历史...........................................................................................................................21
12
杂项....................................................................................................................................21
12.1 set
命令和选项.......................................................................................................21
12.2 shopt
命令和选项...................................................................................................23
12.3 exec
命令 ................................................................................................................24
12.4 trap
命令 .................................................................................................................24
13
命令行处理过程...............................................................................................................25
13 Shell
脚本调试 ..................................................................................................................27
14
对参考文献的评论............................................................................................................28
15
参考文献............................................................................................................................28
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