generate pragmatic passwords that are also secure

pwg.md

add to ~/.bashrc to have a password generator that:

• removes problematic characters
• always starts and ends with an english alphabet character
• is of configurable length

pwg() {
  case ${1} in
    ''|*[!0-9]*) password_length=12 ;;
    *) password_length=${1} ;;
  esac
  pwgen -1 --symbols --ambiguous --remove-chars '\`%"><$'"'" ${password_length} 100 | egrep -i '^[a-z].*[a-z]$' | shuf | head -n 1
}