system.mtr

native print() native getProperty() native getEnv() native sleep() export [print, getProperty, getEnv, sleep] as system

print

The print method will write a list of values, separated by a space, to the standard output.

print("Value:", 5)

getProperty

The getProperty method will return the value of a system property.

getProperty("java.version")

getEnv

The getEnv method will return the value of an environment variable.

getEnv("JAVA_HOME")

sleep

The sleep method will pause the execution of the program for a given amount of milliseconds. Refresh this page and watch the box below to see the effect.

sleep(500);;;sleep(5000)