show total amount of lines added or removed from git repository without yarn.lock or package-lock.json

git-total-lines.sh

# total lines removed
git log --numstat --pretty="" | grep -v lock | sed -r -e "s/^([0-9]+)\\s+([0-9]+).*/\2/" | grep -v "^-" | paste -sd+ | bc

# total lines added
git log --numstat --pretty="" | grep -v lock | sed -r -e "s/^([0-9]+)\\s+([0-9]+).*/\2/" | grep -v "^-" | paste -sd+ | bc

# the main thing to edit would be git log. You could change this to whatever author you like or over 
# whatever time frame or between two commits, etc. The `grep -v lock` removes all files like yarn.lock
# or package-lock.json, which is the main reason I created this command, because those files added like 40,000
# line changes to my code. Also the `grep -v "^-"`removes `png` files and such that are not countedl