Does "sudo rm -rf /bin" execute without any warning?

[Li Xiaoyang]

Hi GNU guys!

I am newbie in Linux world. I know that the Linux philosophy is that 
executing a command just as it is designated  without any verbose 
information.  I also know that the root user has too strong powers to 
change every detail of the system. However, when it is connected with 
the most essential system files, we should give a warning. What about 
when "sudo rm -rf /bin", it gives a conformation or asks the user to 
input something, and when "sudo -rff /bin", it will do the command with 
saying anything?

I am looking forward to your reply!

Regards