command line arguements

This is a discussion on command line arguements within the C Programming forums, part of the General Programming Boards category; this sounds really stupid but looked through my notes several times and cannot find what command line arguements are. could ...

  1. #1
    Registered User
    Join Date
    Mar 2005
    Posts
    3

    command line arguements

    this sounds really stupid but looked through my notes several times and cannot find what command line arguements are. could someone give me an example.PLEASE.

  2. #2
    Registered User hk_mp5kpdw's Avatar
    Join Date
    Jan 2002
    Location
    Northern Virginia/Washington DC Metropolitan Area
    Posts
    3,806
    Command-line arguments are arguments(parameters) passed into the program when it is run from the command prompt (or passed to the program when a file is dragged and dropped onto an executable in Windows for example).

    Let's say you have a program called test.exe and you want to run it with some command-line arguments. At the command prompt you could do something like:

    test foo.txt bar.txt

    ... where foo.txt and bar.txt are the two command-line arguments passed into the program.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

  3. #3
    Registered User
    Join Date
    Feb 2005
    Posts
    12
    Provided you're in the correct directory where your exe is located. So adding onto simplification where hk_mp5kpdw left, (for Windows)
    say your exe named test.exe is stored in C-drive and screamer folder. Then you first go to the command-prompt(some still call it DOS prompt) and then go to the c:\screamer folder and then do what mp5kpdw suggested.

  4. #4
    ---
    Join Date
    May 2004
    Posts
    1,379
    Incase you knew that and you actually needed a programming example, here it is:
    Code:
    #include <stdio.h>
    
    int main(int argc, char* argv[]){
      /* If arguments have been passed */
      if (argc > 0){
        /* Prints 1st argument in argv[1] (argv[0] is the name of the .exe file) */
        printf("Hello, %s\n",argv[1]);
      }
      else{
        /* If no arguments were passed... */
        printf("Anybody out there?\n");
      }  
      return 0;
    }

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Command line arguements in functions.
    By SlyMaelstrom in forum C++ Programming
    Replies: 4
    Last Post: 10-30-2005, 07:41 AM
  2. Comparing command line arguements to a string.
    By SlyMaelstrom in forum C++ Programming
    Replies: 14
    Last Post: 10-30-2005, 04:56 AM
  3. Arguements for gnome?
    By mart_man00 in forum Tech Board
    Replies: 12
    Last Post: 07-30-2003, 05:46 PM
  4. Command Line Arguements
    By scaven in forum C Programming
    Replies: 2
    Last Post: 04-13-2003, 06:36 PM
  5. Working With Command Line Arguements
    By mart_man00 in forum C Programming
    Replies: 4
    Last Post: 08-03-2002, 05:31 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21