# Shell

- [第一部分 初见shell](https://wiki.clay-wangzhi.com/shell/part1.md)
- [1. 为什么使用shell编程](https://wiki.clay-wangzhi.com/shell/part1/01_shell_programming.md)
- [2. 和Sha-Bang(#!)一起出发](https://wiki.clay-wangzhi.com/shell/part1/02_starting_off_with_a_sha_bang.md)
- [2.1 调用一个脚本](https://wiki.clay-wangzhi.com/shell/part1/02_starting_off_with_a_sha_bang/02_1_invoking_the_script.md)
- [2.2 牛刀小试](https://wiki.clay-wangzhi.com/shell/part1/02_starting_off_with_a_sha_bang/02_2_preliminary_exercises.md)
- [第二部分 shell基础](https://wiki.clay-wangzhi.com/shell/part2.md)
- [3. 特殊字符](https://wiki.clay-wangzhi.com/shell/part2/03_special_characters.md)
- [4. 变量与参数](https://wiki.clay-wangzhi.com/shell/part2/04_introduction_to_variables_and_parameters.md)
- [4.1 变量替换](https://wiki.clay-wangzhi.com/shell/part2/04_introduction_to_variables_and_parameters/04_1_variable_substitution.md)
- [4.2 变量赋值](https://wiki.clay-wangzhi.com/shell/part2/04_introduction_to_variables_and_parameters/04_2_variable_assignment.md)
- [4.3 Bash弱类型变量](https://wiki.clay-wangzhi.com/shell/part2/04_introduction_to_variables_and_parameters/04_3_bash_variables_are_untyped.md)
- [4.4 特殊变量类型](https://wiki.clay-wangzhi.com/shell/part2/04_introduction_to_variables_and_parameters/04_4_special_variable_types.md)
- [5. 引用](https://wiki.clay-wangzhi.com/shell/part2/05_quoting.md)
- [5.1 引用变量](https://wiki.clay-wangzhi.com/shell/part2/05_quoting/05_1_quoting_variables.md)
- [5.2 转义](https://wiki.clay-wangzhi.com/shell/part2/05_quoting/05_2_escaping.md)
- [6. 退出与退出状态](https://wiki.clay-wangzhi.com/shell/part2/06_exit_and_exit_status.md)
- [7. 测试](https://wiki.clay-wangzhi.com/shell/part2/07_tests.md)
- [7.1 测试结构](https://wiki.clay-wangzhi.com/shell/part2/07_tests/07_1_test_constructs.md)
- [7.2 文件测试操作](https://wiki.clay-wangzhi.com/shell/part2/07_tests/07_2_file_test_operators.md)
- [7.3 其他比较操作](https://wiki.clay-wangzhi.com/shell/part2/07_tests/07_3_other_comparison_operators.md)
- [7.4 嵌套 if/then 条件测试](https://wiki.clay-wangzhi.com/shell/part2/07_tests/07_4_nested_if_then_condition_tests.md)
- [7.5 牛刀小试](https://wiki.clay-wangzhi.com/shell/part2/07_tests/07_5_testing_your_knowledge_of_tests.md)
- [8. 运算符相关话题](https://wiki.clay-wangzhi.com/shell/part2/08_operations_and_related_topics.md)
- [8.1 运算符](https://wiki.clay-wangzhi.com/shell/part2/08_operations_and_related_topics/08_1_operators.md)
- [8.2 数字常量](https://wiki.clay-wangzhi.com/shell/part2/08_operations_and_related_topics/08_2_numerical_constants.md)
- [8.3 双圆括号结构](https://wiki.clay-wangzhi.com/shell/part2/08_operations_and_related_topics/08_3_the_double_parentheses_construct.md)
- [8.4 运算符优先级](https://wiki.clay-wangzhi.com/shell/part2/08_operations_and_related_topics/08_4_operator_precedence.md)
- [第三部分 shell进阶](https://wiki.clay-wangzhi.com/shell/part3.md)
- [9. 换个角度看变量](https://wiki.clay-wangzhi.com/shell/part3/09_another_look_at_variables.md)
- [9.1 内部变量](https://wiki.clay-wangzhi.com/shell/part3/09_another_look_at_variables/09_1_internal_variables.md)
- [9.2 变量类型标注：declare 与 typeset](https://wiki.clay-wangzhi.com/shell/part3/09_another_look_at_variables/09_2_typing_variables_declare_or_typeset.md)
- [9.2.1 declare 的另类用法](https://wiki.clay-wangzhi.com/shell/part3/09_another_look_at_variables/09_2_typing_variables_declare_or_typeset/09_2_1_another_use_for_declare.md)
- [9.3 $RANDOM：生成随机数](https://wiki.clay-wangzhi.com/shell/part3/09_another_look_at_variables/09_3_random_generate_random_integer.md)
- [10. 变量处理](https://wiki.clay-wangzhi.com/shell/part3/10_manipulating_variables.md)
- [10.1 字符串处理](https://wiki.clay-wangzhi.com/shell/part3/10_manipulating_variables/10_1_manipulating_strings.md)
- [10.1.1 使用 awk 处理字符串](https://wiki.clay-wangzhi.com/shell/part3/10_manipulating_variables/10_1_manipulating_strings/10_1_1_manipulating_strings_using_awk.md)
- [10.1.2 参考资料](https://wiki.clay-wangzhi.com/shell/part3/10_manipulating_variables/10_1_manipulating_strings/10_1_2_further_reference.md)
- [10.2 参数替换](https://wiki.clay-wangzhi.com/shell/part3/10_manipulating_variables/10_2_parameter_substitution.md)
- [11. 循环与分支](https://wiki.clay-wangzhi.com/shell/part3/11_loops_and_branches.md)
- [11.1 循环](https://wiki.clay-wangzhi.com/shell/part3/11_loops_and_branches/11_1_loops.md)
- [11.2 嵌套循环](https://wiki.clay-wangzhi.com/shell/part3/11_loops_and_branches/11_2_nested_loops.md)
- [11.3 循环控制](https://wiki.clay-wangzhi.com/shell/part3/11_loops_and_branches/11_3_loop_control.md)
- [11.4 测试与分支](https://wiki.clay-wangzhi.com/shell/part3/11_loops_and_branches/11_4_testing_and_branching.md)
- [12. 命令替换](https://wiki.clay-wangzhi.com/shell/part3/12_command_substitution.md)
- [13. 算术扩展](https://wiki.clay-wangzhi.com/shell/part3/13_arithmetic_expansion.md)
- [第四部分 命令](https://wiki.clay-wangzhi.com/shell/part4.md)
- [第五部分 高级话题](https://wiki.clay-wangzhi.com/shell/part5.md)
- [18.正则表达式](https://wiki.clay-wangzhi.com/shell/part5/18_regular_expressions.md)
- [18.1正则表达式简介](https://wiki.clay-wangzhi.com/shell/part5/18_regular_expressions/18_1_a_brief_introduction_to_regular_expressions.md)
- [18.2文件名替换](https://wiki.clay-wangzhi.com/shell/part5/18_regular_expressions/18_2_globbing.md)
- [18.3 正则表达式对照表](https://wiki.clay-wangzhi.com/shell/part5/18_regular_expressions/18_3_regular_expression_comparison_table.md)
- [19. 嵌入文档](https://wiki.clay-wangzhi.com/shell/part5/19_here_documents.md)
- [20. I/O 重定向](https://wiki.clay-wangzhi.com/shell/part5/20_io_redirection.md)
- [20.1 使用 exec](https://wiki.clay-wangzhi.com/shell/part5/20_io_redirection/20_1_use_exec.md)
- [20.2 重定向代码块](https://wiki.clay-wangzhi.com/shell/part5/20_io_redirection/20_2_redirecting_code_blocks.md)
- [20.3 应用程序](https://wiki.clay-wangzhi.com/shell/part5/20_io_redirection/20_3_applications.md)
- [21. 子shell](https://wiki.clay-wangzhi.com/shell/part5/21_subshells.md)
- [22. 限制模式的Shell](https://wiki.clay-wangzhi.com/shell/part5/22_restricted_shells.md)
- [23. 进程替换](https://wiki.clay-wangzhi.com/shell/part5/23_process_substitution.md)
- [24. 函数](https://wiki.clay-wangzhi.com/shell/part5/24_functions.md)
- [24.1 复杂函数和函数复杂性](https://wiki.clay-wangzhi.com/shell/part5/24_functions/24_1_complex_functions_and_function_complexities.md)
- [24.2 局部变量](https://wiki.clay-wangzhi.com/shell/part5/24_functions/24_2_local_variables.md)
- [24.3 不适用局部变量的递归](https://wiki.clay-wangzhi.com/shell/part5/24_functions/24_3_recursion_without_local_variables.md)
- [25. 别名](https://wiki.clay-wangzhi.com/shell/part5/25_aliases.md)
- [26. 列表结构](https://wiki.clay-wangzhi.com/shell/part5/26_list_constructs.md)
- [27. 数组](https://wiki.clay-wangzhi.com/shell/part5/27_arrays.md)
- [30. 网络编程](https://wiki.clay-wangzhi.com/shell/part5/30_network_programming.md)
- [33. 选项](https://wiki.clay-wangzhi.com/shell/part5/33_options.md)
- [34. 陷阱](https://wiki.clay-wangzhi.com/shell/part5/34_gotchas.md)
- [36. 其他](https://wiki.clay-wangzhi.com/shell/part5/36_miscellany.md)
- [36.5 有颜色的脚本](https://wiki.clay-wangzhi.com/shell/part5/36_miscellany/36_5_colorizing_scripts.md)
- [36.11 ssh远程操作](https://wiki.clay-wangzhi.com/shell/part5/36_miscellany/36_11_ssh_remote_operate.md)
- [第六部分 Google Shell 风格指南](https://wiki.clay-wangzhi.com/shell/part6.md)
- [第七部分 实例](https://wiki.clay-wangzhi.com/shell/shili.md)


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