Awk学习笔记讲述.doc

Awk学习笔记 Table of Contents  HYPERLINK /content/manage/ringkee/awk.htm \l id2874788 1. awk简介  HYPERLINK /content/manage/ringkee/awk.htm \l id2875182 2. awk命令格式和选项  HYPERLINK /content/manage/ringkee/awk.htm \l id2875104 2.1. awk的语法有两种形式  HYPERLINK /content/manage/ringkee/awk.htm \l id2811790 2.2. 命令选项  HYPERLINK /content/manage/ringkee/awk.htm \l id2810094 3. 模式和操作  HYPERLINK /content/manage/ringkee/awk.htm \l id2810128 3.1. 模式  HYPERLINK /content/manage/ringkee/awk.htm \l id2810236 3.2. 操作  HYPERLINK /content/manage/ringkee/awk.htm \l id2810288 4. awk的环境变量  HYPERLINK /content/manage/ringkee/awk.htm \l id2861410 5. awk运算符  HYPERLINK /content/manage/ringkee/awk.htm \l id2861636 6. 记录和域  HYPERLINK /content/manage/ringkee/awk.htm \l id2861644 6.1. 记录  HYPERLINK /content/manage/ringkee/awk.htm \l id2861680 6.2. 域  HYPERLINK /content/manage/ringkee/awk.htm \l id2861697 6.3. 域分隔符  HYPERLINK /content/manage/ringkee/awk.htm \l id2861728 7. gawk专用正则表达式元字符  HYPERLINK /content/manage/ringkee/awk.htm \l id2861902 8. POSIX字符集  HYPERLINK /content/manage/ringkee/awk.htm \l id2861922 9. 匹配操作符(~)  HYPERLINK /content/manage/ringkee/awk.htm \l id2861937 10. 比较表达式  HYPERLINK /content/manage/ringkee/awk.htm \l id2861975 11. 范围模板  HYPERLINK /content/manage/ringkee/awk.htm \l id2861992 12. 一个验证passwd文件有效性的例子  HYPERLINK /content/manage/ringkee/awk.htm \l id2808705 13. 几个实例  HYPERLINK /content/manage/ringkee/awk.htm \l id2808824 14. awk编程  HYPERLINK /content/manage/ringkee/awk.htm \l id2808832 14.1. 变量  HYPERLINK /content/manage/ringkee/awk.htm \l id2808925 14.2. BEGIN模块  HYPERLINK /content/manage/ringkee/awk.htm \l id2808950 14.3. END模块  HYPERLINK /content/manage/ringkee/awk.htm \l id2808971 14.4. 重定向和管道  HYPERLINK /content/manage/ringkee/awk.htm \l id2809145 14.5. 条件语句  HYPERLINK /content/manage/ringkee/awk.htm \l id2809263 14.6. 循环  HYPERLINK /content/manage/ringkee/awk.htm \l id2809375 14.7. 数组  HYPERLINK