Thread: Command line arguments for file

Can someone help me to write a code that uses command line arguments argc & argv to take a file as an i/p ,open it and copy it to another file?




Thanx,
Gagig

I am sorry, I already got the code.

It's like this,

int main( int argc , char *argv[] )
{
FILE *stream,*dest;
char ch;

stream = fopen(argv[1],"rt");
dest = fopen("dest.txt","wt");

while(!feof(stream))
{
ch = fgetc(stream);
fwrite(&ch,sizeof(char),1,dest);

}

}

But is there even more a simpler way?
Thanx,
Gagig eek:

You'd better test your code, because it seems to me that your output file will be 1 byte bigger than your input file.

Yes, u r right. Whenever I do fwrite, the o/p file has an addtional character. Why is it so? How can I eliminate this?


Thanx,
gagig

Well instead of the

fwrite(&ch,sizeof(char),1,dest);

statement why not use this

fputc(ch,dest);

Code:

int ch;   // yes, it must be int, to check for EOF properly

while ( (ch = fgetc(stream)) != EOF ) { 
    // or fputc as Silverdream mentioned
    fwrite(&ch,sizeof(char),1,dest); 
}

Hi salem,
Thanx for the code..

Gagig