Run git pull over all subdirectories

#!/bin/sh

ls -d */ | parallel -I{} -j100 '

  export PS4="`tput setaf 3`>>> `tput sgr0`"      # output lines as executed in colored intended style
  set -x                                          # verbose output (print each line as it is executed)

  if [ -d {}/.git ]; then
    git -C {} pull > /dev/null
  fi
'