egrep 匹配组不打印？

Question

我正在尝试创建一个 bash 脚本，该脚本将使用 egrep 从文件中 grep 行。我已经创建了应该对我想要的信息进行分组的正则表达式，问题是试图获得输出。我一直在使用以下命令对其进行测试，但运行时没有打印任何内容。如何打印 -{80} 和 Disconnected 之间的多行？

egrep -E "^-{80}$\r?\n?([:ascii:]*)Disconnected from Server" testing.txt

文件：testing.txt

Connected to the server: name here

Some header text.
More text to go though...
--------------------------------------------------------------------------------
The information that I want, would be in here;

Including this line as well #$
and this one.

Disconnected from Server...

Answer 1

使用 awk 之类的工具可能会更好。

awk '/^----+$/ {flag=1;next} /Disconnected from Server/{flag=0} flag {print}'

请参阅：http : //nixtip.wordpress.com/2010/10/12/print-lines-between-two-patterns-the-awk-way/