filtering text with double quotation marks

I'm trying to filter the following, but the double quotationmarks are confusing me.

(load "")

the code I have so far is:开发者_JAVA百科

find /v ""(load "")" < C:\acadlsip.txt | find /v ""(load "")" > acad.lsp

Using a file (thing.txt) with the following content:

this is a test.
(load"")
this is more of a test
(load"")
hello.

I ran the following command:

find /v "(load"""")" < thing.txt

and got this output:

this is a test.
this is more of a test
hello.

Which I guess what you are looking for. The thing to remember here is that entering "" (two quotes) in the middle of the string is interpreted (in this context) as a single quote.

I will also mention that you don't need to run the same find twice in order to pipe the output to another file. You can instead use this:

find /v "(load"""")" < thing.txt > thing2.txt

findstr /v (load\"\")  th1.txt > th2.txt