From where mv command picks

Hi,

I am using mv command for moving file but I am getting

I am using mv command in puppet language, so generally we use like below

So when I use same for mv command like below

command => "/usr/bin/mv /tmp/test /tmp/test_bkp"

I am getting error.

I checked /usr/bin but I don't see mv command so where this "mv" command picks from and which path.