Command Line Arguments in C

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Command Line Arguments in C

It is possible to values at command prompt using command line arguments in C. We need to specify the name of program followed by values we want to pass as arguments .

To implement command line arguments main() must have two parameters as: main ( int argc, char *argv[] )

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


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Lesson tags: Command Line Arguments in C, Test Your Knowledge in c, TIPS and tricks in c
Back to: C Programming Language