That's only if you `export` the vars. You can do `FOO=1 BAR=2 cmd` and FOO and BAR will only have those values for the process and children. This is isomorphi

That's only if you `export` the vars. You can do `FOO=1 BAR=2 cmd` and FOO and BAR will only have those values for the process and children. This is isomorphic to `cmd --foo=1 --bar=2`.