How to display command-line arguments - C# (original) (raw)
Arguments provided to an executable on the command line are accessible in top-level statements or through an optional parameter to Main. The arguments are provided in the form of an array of strings. Each element of the array contains one argument. White-space between arguments is removed. For example, consider these command-line invocations of a fictitious executable:
| Input on command line | Array of strings passed to Main |
|---|---|
| executable.exe a b c | "a" "b" "c" |
| executable.exe one two | "one" "two" |
| executable.exe "one two" three | "one two" "three" |
Example
This example displays the command-line arguments passed to a command-line application. The output shown is for the first entry in the table above.
// The Length property provides the number of array elements.
Console.WriteLine($"parameter count = {args.Length}");
for (int i = 0; i < args.Length; i++)
{
Console.WriteLine($"Arg[{i}] = [{args[i]}]");
}
/* Output (assumes 3 cmd line args):
parameter count = 3
Arg[0] = [a]
Arg[1] = [b]
Arg[2] = [c]
*/