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git corrupted files

Run this in the git repo to check the git objects in a bare repo, or in .git of a normal repo:

git fsck

The above command doesn't always correct checked out files in a regular repo, so the cache must be cleared. (Uncommited changes will be lost!)

git rm -r --cached .
git reset --hard

If you want to automate that command on a directory containing many git subdirectories:

ls */.git -d | sed -e "s:/.git$::" | sort > repos-in-this-dir

while read line ; do echo NEXT $line ; cd $line ; git rm -r --cached . ; git reset --hard ; cd .. ; done < repos-in-this-dir 2>&1 | less