After taking a look at the env command man page I was curious to see an example of a utility program that would be used in the usage noted below?
SYNOPSIS
env [-i] [name=value ...] [utility [argument ...]]
DESCRIPTION
env executes utility after modifying the environment as specified on the command line. The option name=value specifies an environmental variable, name, with a value of value. The option `-i' causes env to completely ignore the environment it inherits.