如何将包含相同内容的行替换为相同内容（LINUX）？

如何用相同的内容替换包含内容的行

例如，我有一行随机的东西，并包含在该行（电子邮件） 我想把所有的行都换成电子邮件，比如说，所有的电子邮件都以（abuse@.*)

我的输出必须是

email: abuse@xx.com
-random txt with no email- 
email: abuse@sdds.net
-random txt with no email- 
email: abuse@sss.org
-random txt with no email-

因此，搜索行已（abuse@.*）例如。abuse@xx.com 获取电子邮件，然后删除该行并放入 电邮：abuse@xx.com而不是那条线

在shell代码中，gsed-i（或者linux上的sed-i）会有用吗

$ cat substitute.txt 
aaaaaaaaaaaaaa abuse@xx.com
-random lines with no email- 
bbbbbbbbbbbbbb abuse@sdds.net
-random lines with no email- 
cccccccccccccc abuse@sss.org
-random lines with no email-


$ cat substitute.txt | gsed -s "s/.*\(abuse\)/email: \1/" 
email: abuse@xx.com
-random lines with no email- 
email: abuse@sdds.net
-random lines with no email- 
email: abuse@sss.org
-random lines with no email-

$  gsed -i.bak -s "s/.*\(abuse\)/email: \1/" substitute.txt     
$ cat substitute.txt
email: abuse@xx.com
-random lines with no email- 
email: abuse@sdds.net
-random lines with no email- 
email: abuse@sss.org
-random lines with no email-

---

是的，您也可以这样做，大多数情况下，只需按住（h），按住并附加（h），然后抓住（g）：

---

为我工作谢谢你。。。但是，如果我想保持该行不变，但在其后面添加新行（电子邮件：abuse@....... )

$ cat substitute.txt 
aaaaaaaaaaaaaa abuse@xx.com
-random lines with no email- 
bbbbbbbbbbbbbb abuse@sdds.net
-random lines with no email- 
cccccccccccccc abuse@sss.org
-random lines with no email-


$ cat substitute.txt | gsed -s "s/.*\(abuse\)/email: \1/" 
email: abuse@xx.com
-random lines with no email- 
email: abuse@sdds.net
-random lines with no email- 
email: abuse@sss.org
-random lines with no email-

$  gsed -i.bak -s "s/.*\(abuse\)/email: \1/" substitute.txt     
$ cat substitute.txt
email: abuse@xx.com
-random lines with no email- 
email: abuse@sdds.net
-random lines with no email- 
email: abuse@sss.org
-random lines with no email-

ubuntu@ip-10-0-11-161:~/dev$ cat substitute.txt  | sed -s "/\(.*\)\(abuse\)/{ h;s/.*\(abuse\)/email: \1/;H;g;}"
aaaaaaaaaaaaaa abuse@xx.com
email: abuse@xx.com
-random lines with no email- 
bbbbbbbbbbbbbb abuse@sdds.net
email: abuse@sdds.net
-random lines with no email- 
cccccccccccccc abuse@sss.org
email: abuse@sss.org
-random lines with no email-