generatePassword.sh

#!/bin/bash

while true
do
	PASSWORD_LENGTH=20
	
	password="$(head -n5 /dev/urandom | strings | tr -c '[:alnum:]' ' ' | tr -d '[:space:]' | cut -b1-$PASSWORD_LENGTH)"

	[ "$(echo -n "$password" | wc -c)" -ne $PASSWORD_LENGTH ] || break
done

echo $password