powershell escaping the escape character in a replace - string

Question

Update - tried text without any back ticks still not replacing.
I have a file test.txt with these records:
name="BLUE_TBL_AC_EA_FREQ"` owner="BLUE_TBL_AC_EA_FREQ"
name="BLUE_TBL_AC_EA_FREQ" owner="RED_TBL_AC_EA_FREQ"
I would like to replace the string for the name attribute so I would use
name="BLUE_TBL_AC_EA_FREQ"
In the powershell script. This is what I did but the output file does not contain the replaced text, it is the same as the input.
Then I use a batch script that has this powershell command in the batch script
powershell -Command "(Get-Content "test.txt") | Foreach-Object {$_ -replace 'name="BLUE_TBL_AC_EA_FREQ"', 'name="BLUE_TBL_ACEAFREQ"'} | Set-Content "testo.txt""
The batch script does not replace the string that contains the string.
Am I doing something wrong, do I have to escape the double quotes for the string?
It is still not working for me.
End update
I am trying to use Powershell to replace some text in a file that makes use of the back tick.
In the file there is text such as
' name="BLUE_TBL_AC_EA_`FREQ"'
I would like to replace this text by
' name="BLUE_TBL_ACEAFREQ"'
The replace that I use in Powershell look like this
powershell -command "& {(Get-Content "file.txt") | Foreach-Object {$_ -replace ' name="BLUE_TBL_AC_EA_`FREQ"', ' name="BLUE_TBL_ACEAFREQ"'} | Set-Content "fileO.txt;}"
The ' name= is needed since there are multiple strings that contain the name="... string.
When I use this command nothing gets replaced. I have tried to escape the back tick by using a double back tick (``) and still nothing gets replaced.
I have searched and read many articles about Powershell and replacing text and the need for escaping characters. I thought I did what was needed but nothing gets replaced.
How do I replace the text that includes a back tick?

Answer 1

It looks like that when a replace is used in a batch script and the text contains either a back tick character or a double quote, then all the back ticks and the double quotes need to be escaped in the batch script.
The powershell command that was
powershell -Command "(Get-Content "test.txt") | Foreach-Object {$_ -replace 'name="BLUE_TBL_AC_EA_FREQ"', 'name="BLUE_TBL_ACEAFREQ"'} | Set-Content "testo.txt""
Becomes:
powershell -Command "(Get-Content "test.txt") | Foreach-Object {$_ -replace 'name=\"BLUE_TBL_AC_EA_FREQ\"', 'name=\"BLUE_TBL_ACEAFREQ\"'} | Set-Content "testo.txt""
If there is a back tick in the string then the back tick must be escaped as well using the reverse slash such as
\`
What a mess in a batch script.
Thanks for helping me figure this out.

Answer 2

I think your command have error that's why it is not changed. You missed the double quote after the txt, before the semicolon.
I tried this in my powershell and it is working.
(Get-Content "C:\test.txt") | Foreach-Object {$_ -replace ' name="BLUE_TBL_AC_EA_`FREQ"', ' name="BLUE_TBL_ACEAFREQ"'} | Set-Content "C:\test.txt"