git - How to find which commits removed a line that contain a specific string? -

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i have file no longer referenced anywhere in code. looking find commits removed reference file. (i have no idea files used reference it).

i know git log -s find commits either added or removed string. looking ability limit search lines removed. possible?

i see easier solution. shell-scripting like:

for id in $(git log -sstring --pretty=%h)   if [ "$(git show $id | grep "+.*string")" != "" ]       echo $id   fi done

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