Somehow I messed the name of this post and I can't change it, is it possible to delete it please?

Or to change its name and delete the duplicate post?
Remove a multi-line text from another text file

I need to remove a multi-line text (contained in a file) from another text file but only the first occurrence of the entire multi-line text

The text file looks like this:

And I need to remove the following lines (contained in a file)
And then the result will be:

Sounds like an interesting homework question; what have you done/tried so far to get this done?? What language, shell, or utility do you want or need to use?? Read the "Question Guidelines" link in my posting signature...we're happy to help with things, but we aren't going to do homework for you.

I'd suggest looking at sed, and incorporating it into a simple bash script to loop through your input file. And based on your input file and what it takes in, the output SHOULD be:
...since you'd remove the first occurrence of each word.

::EDIT::
Again, read the "Question Guidelines" and LQ Rules...don't delete or edit posts like that, since it only makes things hard to follow when others search for things. You can always ask a moderator to edit a subject line, but deleting the whole thing for essentially no reason isn't good.

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I reposted the question, sorry for trying to delete it and reposting again

I need to remove the entire multi-line text, I do not need to remove the individual lines of that multi-line text

I am using gnuwin32 on Windows.
I managed to find a very complicated solution:
- transform the newlines into a special character "@"
- read the content of the first file into a variable
- use sed to remove the line from the second file
- transform again the special character "@" into newline

However this is quite a mess for very large files that can contain the "@" character

This is my script:

Bolded a part above for emphasis only. Understand what you're asking now, and thanks for showing your efforts. Sed may be what you're looking for:
Replace start/end words as needed, and this is untested. And use caution, since the Windows utilities aren't 100% compatible with their 'real' Linux counterparts. Suggest using Linux in a VM on your Windows system if you really want to test things in a more stable way.

If your system's memory can store both files:

With sgrep (probably could be refined further):
Instead of the constant "quick\nbrown\nfox\n", there could be something like
sgrep comes with a sample config file that includes the following m4 macro definition:
Putting them together:
Some other grep-like tools, e.g. the silver searcher, also allow this kind of matching:
Another curious option is udiff from Schily Tools. Because it works slightly different from the standard diff, we can abuse it for the side effect:
Something similar could be achieved with icdiff, too:

1 members found this post helpful.