mysqldump some tables

[root@localhost glen]# mysqldump -u username -pxxxxx DB users user_role role groups > user_group_role.mysql
[root@localhost glen]# less user_group_role.mysql

check cpu information on Linux machine

[root@localhost ~]# cat /proc/cpuinfo | grep core
core id : 0
cpu cores : 4
core id : 1
cpu cores : 4
core id : 2
cpu cores : 4
core id : 3
cpu cores : 4