# read and print environment variable
# env TEST=123 EMPTY= ./mgmt run --tmp-prefix --converger-timeout=5 --converged-exit lang examples/lang/env0.mcl

import "fmt"
import "sys"

$x = sys.getenv("TEST")

print "print1" {
	msg => fmt.printf("the value of the environment variable TEST is: %s", $x),
}

$y = sys.defaultenv("DOESNOTEXIT", "321")

print "print2" {
	msg => fmt.printf("environment variable DOESNOTEXIT does not exist, defaulting to: %s", $y),
}

$z = sys.defaultenv("EMPTY", "456")

print "print3" {
	msg => fmt.printf("same goes for empty variables like EMPTY: %s", $z),
}
