在Powershell中使用regex替换字符串的第一个匹配项

Question

I was working some replace string using regex in powershell. But When I try to implement the first occurrence in the stringto replace a word. It does not work.

(((Grant Execute.*)\\n+go)(\\n)?) This is my working regex if I want to replace all the matches.

^(((Grant Execute.*)\\n+go)(\\n)?) I used this when I want to replace the first occurrence of the string...

Below is the string that I want to replace. This data is came from a batch file. Grant Execute on dbo.Table to server1 go Grant Execute on dbo.Table to server2 go Grant Execute on dbo.Table to server2

Answer 1

试试这个模式：

(?s)(?<!go\s*)Grant Execute.*?go(?!\sGrant)