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如何用sed删除特定文件行?

时间:2011-05-08

来源:互联网

http://linuxcommand.org/wss0030.php

A here script (also sometimes called a here document) is an additional form of I/O redirection. It provides a way to include content that will be given to the standard input of a command.

如何理解呢?不是太明白到底什么是here scripts,请教了

作者: nigo   发布时间: 2011-05-08

代码:
cat <<HereDoc
This is the so-called heredoc writing in the script but as the input.
HereDoc

作者: lilydjwg   发布时间: 2011-05-08

就是标记之间的所有命令被定向到<<符号之前的那个command

代码:
#!/bin/bash
lftp << someMessHere
open http://mirror.bjtu.edu.cn/gnu/gcc
get -c README.olderversions
someMessHere


又比如
代码:
:<<anyThingHere
被暂时屏蔽的代码
anyThingHere

作者: xjack   发布时间: 2011-05-08