Using Command Line Arguments


The Arguments object in the standard library allows you to work with Command Line Arguments from inside a Small Basic program.  The Arguments object includes a Count property that gives the total number of arguments passed to the program, and a GetArgument(index) operation that allows you to access each of these arguments using their index.


The following program prints out all the prime numbers less than the number passed at the command line.


If (Arguments.Count = 1) Then
maxNumber = Arguments.GetArgument(1)

If (maxNumber < 2) Then
TextWindow.WriteLine("No Primes less than 2.")
EndIf

For i = 2 To maxNumber
CheckPrime()
If (isPrime = "True") Then
TextWindow.WriteLine(i)
EndIf
EndFor
Else
TextWindow.WriteLine("Usage: prime.exe ")
EndIf

Sub CheckPrime
isPrime = "True"
For j = 2 To Math.SquareRoot(i)
If (Math.Remainder(i, j) = 0) Then
isPrime = "False"
EndIf
EndFor
EndSub


In this program, Small Basic tries to coerce any passed argument as a number.  If you try passing a non-number, the program ends up with “0” and will print out “No Primes less than 2.”


 

Comments (2)

  1. This blog post was updated with the newer interface:

    Using Command Line Arguments – Updated

    blogs.msdn.com/…/using-command-line-arguments-updated.aspx

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