如果不特别说明，sed例子中使用下述文本文本quote.txt的内容：
The honeysuckle band played all night long for only $90.
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
三、实例
1.使用p显示行
[root@RHEL5 shell]# sed '3p' quote.txt
The honeysuckle band played all night long for only $90.
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
发现打印了所有行，只是第三行打印了2边。使用-n选项只显示匹配行，故
[root@RHEL5 shell]# sed -n '3p' quote.txt
Too bad the disco floor fell through at 23:10.
2.打印范围
root@RHEL5 shell]# sed -n '2,4p' quote.txt
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
3.打印模式
[root@RHEL5 shell]# sed -n '/company/p' quote.txt
It was an evening of splendid music and company.
4.使用模式和行号
[root@RHEL5 shell]# sed -n '/The/p' quote.txt
The honeysuckle band played all night long for only $90.
The local nurse Miss P.Neave was in attendance.
[root@RHEL5 shell]# sed -n '4,/The/p' quote.txt
The local nurse Miss P.Neave was in attendance.
5.匹配特殊字符
[root@RHEL5 shell]# sed -n '/\$/p' quote.txt
The honeysuckle band played all night long for only $90.
6.显示整个文件
[root@RHEL5 shell]# sed -n '1,$p' quote.txt
The honeysuckle band played all night long for only $90.
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
7.任意字符
[root@RHEL5 shell]# sed -n '/.*ance/p' quote.txt
The local nurse Miss P.Neave was in attendance.
8.显示首行
[root@RHEL5 shell]# sed -n '1p' quote.txt
The honeysuckle band played all night long for only $90.
9.显示尾行
[root@RHEL5 shell]# sed -n '$p' quote.txt
The local nurse Miss P.Neave was in attendance.
10.打印行和行号
[root@RHEL5 shell]# sed -n '/music/=' quote.txt
2
只能显示行号。
[root@RHEL5 shell]# sed -e '/music/=' quote.txt
The honeysuckle band played all night long for only $90.
2
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
显示了多余的内容。
只显示匹配的行和行号，需要使用2个sed命令。第一打印模式匹配行，第二个使用=打印行号：
[root@RHEL5 shell]# sed -n -e '/music/p' -e '/music/=' quote.txt
It was an evening of splendid music and company.
2
11.附加文本
使用a\附加文本，可以将指定文本一行或者多行附加到指定行。如不指定文本放置的位置，sed缺省放在每一行的后面。同时附加文本不能指定范围。
[root@RHEL5 shell]# sed '/company/ a\ this line will be appended' quote.txt
The honeysuckle band played all night long for only $90.
It was an evening of splendid music and company.
this line will be appended
Too bad the disco floor fell through at 23:10.
The local nurse Miss P.Neave was in attendance.
12.sed脚本文件
#!/bin/sed -f
/company/ a\
this line will be appended
-----end-----
修改权限，然后执行,功能也是实现附加文本
13.插入文本
插入和附加类似，只是在指定行前插入，也只接受一个地址，而且地址是模式或行号
格式：/pattern/ i\ 或line/Number i\ insertText
#!/bin/sed -f
/attendance/ i\
utter confusion followed、
结果：
The honeysuckle band played all night long for only $90.
It was an evening of splendid music and company.
Too bad the disco floor fell through at 23:10.
utter confusion followed
The local nurse Miss P.Neave was in attendance.
14.修改文本
#!/bin/sed -f
/The honeysuckle/ c\
The Office Dibble band played well.
修改命令将在批评模式空间的指定行用新文本加以代替，也可以使用行号指定要修改的行。
15.删除文本
删除第一行：sed '1d' quote.txt
删除第一到第三行:sed '1,3d' quote.txt
删除最后一行：sed '$d' quote.txt
删除含'Neave'的行：sed '/Neave/' quote.txt
16.替换文本
替换night为NIGHT:
[root@RHEL5 shell]# sed -n 's/night/NIGHT/p' quote.txt
The honeysuckle band played all NIGHT long for only $90.
删除$符合：
[root@RHEL5 shell]# sed -n 's/\$//p' quote.txt
The honeysuckle band played all night long for only 90.
将所有The替换为Wow：
[root@RHEL5 shell]# sed -n 's/The/Wow/gp' quote.txt
Wow honeysuckle band played all night long for only $90.
Wow local nurse Miss P.Neave was in attendance.
将替换结果写入文件：
[root@RHEL5 shell]# sed -n 's/The/Wow/gpw out.txt' quote.txt
Wow honeysuckle band played all night long for only $90.
Wow local nurse Miss P.Neave was in attendance.
[root@RHEL5 shell]# cat out.txt
Wow honeysuckle band played all night long for only $90.
Wow local nurse Miss P.Neave was in attendance.
