utils

#!/bin/bash

# Generate an alphanumeric 16 character password
randpw() {
  < /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-16}
  echo
}

# Generate a 16 character password where the adjacent characters are typed with different hands (left/right)
randpwmix() {
  LEFT=$(randpwleft)
  RIGHT=$(randpwright)
  python -c "print(''.join(''.join(x) for x in zip('${LEFT}', '${RIGHT}')))"
}

# A password which can be printed only by left hand
randpwleft() {
  </dev/urandom tr -dc '12345!@#$%qwertQWERTasdfgASDFGzxcvbZXCVB' | head -c8
  echo ""
}

# A password which can be printed by right hand alone
randpwright() {
  </dev/urandom tr -dc '67890-=^&*()_+yuiop[]YUIOP{}hjkl;HJKL:"nm,./NM<>?' | head -c8
  echo ""
}