关于sed 中-n和-e选项方面的使用

netwalks

新手学习sed，看了wingger mm的“shell基础12篇”，但有个问题还是不太灵清，就是在使用-n和-e的选项上，不明白-n和-e到底是什么含义。希望各位大虾能讲解一下。多谢拉！

mocou

-n, --quiet, --silent

              suppress automatic printing of pattern space

       -e script, --expression=script

              add the script to the commands to be executed

netwalks

To 楼上：能否用中文说明一下？

对文件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.

怎样打印出每行和每行的行号？

netwalks

自己ding一下，哪位大虾给解答一下吧，现在给卡在这里喽

waker

http://phi.sinica.edu.tw/aspac/reports/96/96005/sed_sec_2.html

看2.1与2.5

如果有时间通篇看几遍吧？

netwalks

多谢楼上的，你给的链接打开后都是乱码不知道是怎么回事？
不过我在wingger mm给的一个链接上看到这样的说明，我觉得解释得很清楚了：
http://www.chinalinuxpub.com/doc/oreillybookself/unix/sedawk/ch02_03.htm

The -e option is necessary only when you supply more than one instruction on the command line. It tells sed to interpret the next argument as an instruction. When there is a single instruction, sed is able to make that determination on its own.

谢谢大家的帮忙了