生成linux shadow文件
1 echo "password" | openssl passwd -1 -salt $(< /dev/urandom tr -dc '[:alnum:]' | head -c 32) -stdin
1 $1$cVcjk1yK$sfdBsYIEr800Mdr3PsICe0 2 $1$oBrzawaF$WeVJjd2eyoEEmJykNtMH01 3 $1$HM0y28Ln$CzEhvJgWndEcfcw8jGh1f/ 4 $1$qYTBl3gY$g1.Q3o.g9rD/mp6xdhapM/
