CocoaPods pods by minimum deployment target

pod_versions.sh

#!/usr/bin/bash

git clone https://github.com/CocoaPods/Specs.git
cd Specs/
for pod in `ls`; do
  ver=$(ls $pod | sort -n | tail -n 1);
  spec=$(ls $pod/$ver | head -n 1);
  echo $pod/$ver/$spec >> ~/Desktop/specs.txt;
done
while read file; do
  for ver in (0 1 2 3 4 5 6 7 8 9); do
    grep -qE "ios['\"]:\s*['\"]$ver\." $file && echo $file >> ~/Desktop/specs$ver.txt;
  done
done < ~/Desktop/specs.txt
find ~/Desktop/ -name specs?.txt -exec wc -l {} \;