1、echo $RANDOM
2、openssl rand -base64 8
3、date +%s%N
4、head /dev/urandom |cksum
5、cat /proc/sys/kernel/random/uuid |md5sum
6、(expect)mkpasswd -s 0|md5sum
7、openssl rand -hex 10
8、 openssl rand -base64 20
2、openssl rand -base64 8
3、date +%s%N
4、head /dev/urandom |cksum
5、cat /proc/sys/kernel/random/uuid |md5sum
6、(expect)mkpasswd -s 0|md5sum
7、openssl rand -hex 10
8、 openssl rand -base64 20