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Command Line Arguments in C

We can provide values at command prompt using command line arguments. We have to specify the program name followed by values to be sent as arguments .

Command line arguments to main() have two parameters passed as main ( int argc, char *argv[] )

• argc specifies the number of arguments
  
• *argv[] specifies the values passed at command line as arguments .

Program for command line arguments.

#include <stdio.h> int main ( int argc, char *argv[] ) { int counter; printf(“Command line arguments”); for(counter=0;counter<argc;counter++) { puts(argv[counter]); } return(0); }

How to run:

1. Name of program is supposed to be file.C
2. Make its executable by compiling it.
3. Go to Dos Shell from file menu.
4. You need to type :file this is command line
   

The output of the program would be :

Command line arguments

d:\TCC\file.EXE  this
is
command
line