tar --exclude and grep -v

Hi.

In a directory, I have files named a, b, c, d, e, f, g, h, i, and j.

When I want ls to output only the file named e, I use

Code:

ls | grep -e 'e'

Now, if I want ls to output everything except e, I use

Code:

ls | grep -e 'e' -v

Now, I want to create a .tar.gz file that contains only e, I use

Code:

tar --exclude=´ls | grep -e 'e' -v´ -c -z -f ./file.tar.gz ./

But all files except e were tarred. Can someone please explain me what is wrong with that ?

(Of course, this is a basic example, and the easiest/laziest answers would be : tar -c -z -f ./file.tar.gz ./e OR tar --exclude=´ls | grep -e 'e'´ -c -z -f ./file.tar.gz ./e).

Thanks in advance

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