Reading Command-line Arguments
| Argument values | Argument counts | Program name / Script name | |
|---|---|---|---|
| C (C99) | argv | argc | first argument |
| Objective-C | |||
| C++ | |||
| C# | args | args.Length | Assembly.GetEntryAssembly.Location; |
| Java | args.length | ||
| D | first argument | ||
| JavaScript |
WScript.Arguments(n) | WScript.Arguments.length | WScript.ScriptName or WScript.ScriptFullName |
| Go | os.Args | len(os.Args) | first argument |
| Common Lisp | ? | ? | ? |
| Scheme (R6RS) | (list-ref (command-line) n) | (length (command-line)) | first argument |
| ISLISP | |||
| Pascal | ParamStr(n) | ParamCount | first argument |
| Visual Basic | Command | App.Path | |
| Visual Basic .NET | CmdArgs(n) | CmdArgs.Length | .GetEntryAssembly.Location |
| Python | sys.argv | len(sys.argv) | first argument |
| S-Lang | __argv | __argc | first argument |
| Fortran | DO i = 1,argc CALL GET_COMMAND_ARGUMENT (i,argv(i)) ENDDO | argc = COMMAND_ARGUMENT_COUNT | CALL GET_COMMAND_ARGUMENT (0,progname) |
| PHP | $argv | $argc | first argument |
| Perl | $ARGV | scalar(@ARGV) | $0 |
| Perl 6 | @*ARGS | @*ARGS.elems | $PROGRAM_NAME |
| Ruby | ARGV | ARGV.size | $0 |
| Windows PowerShell | $args | $args.Length | $MyInvocation.MyCommand.Name |
| OCaml | Sys.argv.(n) | Array.length Sys.argv | first argument |
| F# | args. | args.Length | Assembly.GetEntryAssembly.Location |
| Standard ML | List.nth (CommandLine.arguments , n) | length (CommandLine.arguments ) | CommandLine.name |
| Haskell (GHC) | do { args <- System.getArgs; return args !! n } | do { args <- System.getArgs; return length args } | System.getProgName |
- ^a The command-line arguments in Visual Basic are not separated. A split function Split(string) is required for separating them.
Read more about this topic: Comparison Of Programming Languages (basic Instructions)
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—Sidney Buchman (1902–1975)
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—Roger Bacon (c. 1214–1294)