Powershell 用双引号和新行替换

Question

I wanna replace something with double quotes, but also need a new line in the middle. How can I do this? I tried all combinations, but it seems to me that a new line needs double quotes, is there any other way?

For example:

(Get-Content '.\input.xml') -replace 'version="1.0">', 'version="1.0"> "`n `n" iNeedANewLineHere' | Set-Content -encoding UTF8 '.\output.xml'

This way it doesnt interpret the nl-commands as new lines, it prints everything as text, in cause of the single quotes... is there any other way to solve this problem?

Answer 1

Use double quotes to enclose your string, and escape the inner double quotes as such:

(Get-Content '.\input.xml') -replace 'version="1.0">', "version=`"1.0`"> `"`n `n`" iNeedANewLineHere" | Set-Content -encoding UTF8 '.\output.xml'

Or like this:

(Get-Content '.\input.xml') -replace 'version="1.0">', "version=""1.0""> ""`n `n"" iNeedANewLineHere" | Set-Content -encoding UTF8 '.\output.xml'

If you are executing this from CMD you will need to escape any internal double quotes that you are trying to pass to PowerShell in CMD as they are passed. This should do that:

powershell -Command "(Get-Content '.\input.xml') -replace 'version=^"1.0^">', ^"version=^"^"1.0^"^"> `n `n iNeedANewLineHere^" | Set-Content -encoding UTF8 '.\output.xml'"