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
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
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
又比如
代码:
#!/bin/bash
lftp << someMessHere
open http://mirror.bjtu.edu.cn/gnu/gcc
get -c README.olderversions
someMessHere
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
被暂时屏蔽的代码
anyThingHere
作者: xjack 发布时间: 2011-05-08
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