Quick Check IF:

This form of IF can only be used in the shell.

The quick check IF uses the syntax IF <test> and prints the result of the evaluation of the IF (true or false) to the terminal.

nM> set debug yes
nM> if debug isTrue
INFO: Logical test = true

nM> set debug true
nM> if debug isTrue
INFO: Logical test = true

nM> set debug on
nM> if debug isTrue
INFO: Logical test = true

nM> set debug off
nM> if debug isTrue
INFO: Logical test = false

nM>