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# read and print environment variable
# env TEST=123 EMPTY= ./mgmt run --tmp-prefix --converged-timeout=5 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),
}
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