create an user OS which has privilege like root user

I will create user "bigdata" which has privilege like root user
[root@PTUD-VM02-4 ~]# chmod 640 /etc/sudoers
[root@PTUD-VM02-4 ~]# vi /etc/sudoers
## Allow root to run any commands anywhere
root    ALL=(ALL)       ALL
bigdata    ALL=(ALL)       ALL

[root@PTUD-VM02-4 ~]# chmod 440 /etc/sudoers

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