使用sed脚本格式化txt文件

Question

我有一个文本文件，里面有几百行。这些行中有不同数量的电子邮件地址(都在同一个域中(。我想将这些电子邮件地址的格式从[e-mail]更改为domainuser1。

我尝试对IDs.txt的源文件使用下面的sed脚本，但它出错了，并显示了相应的错误消息：

with open(IDs.txt, '+') as f:
f.write(
re.sub(r'(w+)@domain.com', r'domain\1', f.read())
)

使用以下命令运行脚本：

sed -Ef id.sed 

错误：

sed: file id.sed line 2: unknown command: `f'

从我查到的情况来看，sed甚至可能不会写入文件，所以这可能奏效吗？还是我在浪费时间？谢谢

---编辑---

源文件的示例内容：

set device-group AllPeople TestingPolicy source-user [ [e-mail] [e-mail] [e-mail] [e-mail] ]
set device-group AllPeople TestingPolicy11552 source-user [ [e-mail] [e-mail] [e-mail] [e-mail] ]
set device-group AllPeople TestingPolict00988 source-user [e-mail] 

预期输出：

set device-group AllPeople TestingPolicy source-user [ domainname1 domainuserid domainuserid1 domainuserid3 ]
set device-group AllPeople TestingPolicy11552 source-user [ domainuserid6 domainuserid5 domainuserid4 domainuserid7 ]
set device-group AllPeople TestingPolict00988 source-user domainuserid10

Answer 1

使用sed

$ sed -E 's/([[:alnum:]]+)@([^.]*)[^ ]*/2\1/g' IDs.txt 
set device-group AllPeople TestingPolicy source-user [ domainname1 domainuserid domainuserid1 domainuserid3 ]
set device-group AllPeople TestingPolicy11552 source-user [ domainuserid6 domainuserid5 domainuserid4 domainuserid7 ]
set device-group AllPeople TestingPolict00988 source-user domainuserid10

使用python

import re
f = open("IDs.txt")
output = re.sub(r'([a-z0-9]+)@([^.]*)[^ ]*', r"2\1", f.read())
print(output)
set device-group AllPeople TestingPolicy source-user [ domainname1 domainuserid domainuserid1 domainuserid3 ]
set device-group AllPeople TestingPolicy11552 source-user [ domainuserid6 domainuserid5 domainuserid4 domainuserid7 ]
set device-group AllPeople TestingPolict00988 source-user domainuserid10