Setting environment variable for one program call in bash using env

Question

I am trying to invoke a shell command with a modified environment via the command env.

According to the manual

env HELLO=\'Hello World\'         


        

Answer 1

Here is an easier way to confirm shell is working as expected.

env A=42 env
env

The first command runs sets A to 42 and runs env. The second command also runs runs env. Compare the output of both.