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"-f"

Posted on 2003-10-24
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Last Modified: 2010-04-22
This is my code:

#include <stdio.h>

int main()
{
      FILE *fptr;
      char buffer[80];
      fptr = fopen("data.txt","r");
      if(fptr == NULL)
      {
              printf("Error");
              exit(1);
      }
      else
      {
              while(fgets(buffer,80,fptr))
              {
                     printf("%s",buffer);
              }
              fclose(fptr);
       }
}      


Is there a way to execute this program with the first parameter as the
"-f" and the second parameter as the name of the textfile?. Then
the program will read the contents of the textfile and display.

Do we incoperate the -f as part of the program. Does it do any sort of validation or functionality. Please include some examples.

P.S I know the command line arguments.

Regards
Eugene
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Question by:eugene007
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Expert Comment

by:scn
ID: 9615055
man 3 getopt   (an example is included in the manpage)
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Author Comment

by:eugene007
ID: 9618274
can u further explain, cause I dont have linux on my machine.
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Expert Comment

by:scn
ID: 9619405
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