Lucky commit git post-commit hook. Checks your last commit SHA number if it is lucky one (the sum of first 20 digits equals to the sum of last 20 ones).

lucky commit

#!/bin/sh
left_sum=$((`git log -1 --format=format:%H | cut -c -20 | sed -e 's/[a-f0-9]/\+0x&/g'`))
right_sum=$((`git log -1 --format=format:%H | cut -c 21- | sed -e 's/[a-f0-9]/\+0x&/g'`))
 
if [ $left_sum = $right_sum ]; then
  echo '****************************************'
  echo '*   Congratulations! Lucky commit!!!   *'
  echo '****************************************'
fi