Project in C

[4emens]

Hello i have to make a project in C that will make MS DOS move command in C

i have done this and this does copy the file but i cant make a code to paste it too...can someone hlp me?

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[] ){
FILE *alfa;
FILE *tempf;
FILE *vita;
char c, name[15], name2[15];
int i=0;

if (argc<3){
printf ("\n \n");
return 1;
}

strcpy(name, argv[1]);
strcpy(name2, argv[2]);


while (name[i]!='\0'){
if (name[i]=='_'){
name[i]=' ';
i++;
}
else{
name[i]=name[i];
i++;
}
}

i=0;

while (name2[i]!='\0'){
if (name2[i]=='_'){
name2[i]=' ';
i++;
}
else{
name2[i]=name2[i];
i++;
}
}

alfa=fopen(name ,"r");



tempf=fopen("te mp","w");

while ((c = fgetc (alfa)) != EOF)
fputc(c,tempf);


fclose (tempf);
fclose(alfa);
remove (name);

tempf=fopen("te mp","r");
vita=fopen(name 2,"w");
while ((c = fgetc (tempf)) != EOF)
fputc(c,vita);


fclose (tempf);
remove ("temp");
fclose (vita);




return 0;

}

[weaknessforcats]

Copy the file top an array.

The paste is just copying that array wherever you want.

[4emens]

I dont understand what u mean.....

[RRick]

I think what 4emens is asking: How to copy a file if the file is copied and then pasted/dropped on the executable via the gui. Or is it the other way around? Pasting/dropping the program on a file.

Is this possible? How does one name the new file?

[4emens]

I have to make ms dos move command in C...this command copies a file and paste it anywhere u want...
for example if i write at DOS move.exe copy.txt D:\project
if my projects name is move then its going to copy the txt file and paste it at D:\project but this code copies the file...i need some help on how to paste it

[weaknessforcats]

I guess I don't understand what you mean by "move" , "copy" and "paste"

To me a move copies the file to a destination location and deletes the file at the source location.

A copy does the same thing to a without deleting the source location.

A paste is a copy.

[RRick]

I agree with W4cats that there is a lot of confusion in what you mean by move, copy and paste. For clarity, lets ignore the paste word and use only move and copy.

Let's look at the command you are trying to mimic in C.

move.exe copy.txt D:\project

First of all, move is a special type of command where the file is copied to a new location and original file is deleted. You will have to use some system command to delete the original file.

Take a look at your parameter list. The first param is a file and the second param is a directory. For this specific move, you need to

1. Copy "copy.txt" to "D:\project\cop y.txt"
2. Delete copy.txt

The file names in #1 are the names of the files you have to open.

[4emens]

To make all clear....I want to copy the txt file from the original directory, delete the original file and paste it at the directory that i give

My program copies the file,deletes the original but it doesnt paste it at the directory that i give

and something last...what include does system command needs??

[4emens]

i tried use the system command but it still doesnt paste the file see this and help me if u can


#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[] ){
FILE *alfa;
FILE *tempf;
FILE *vita;
char c, name[15], name2[15];
int i=0;

strcpy(name, argv[1]);
strcpy(name2, argv[2]);


while (name[i]!='\0'){
if (name[i]=='_'){
name[i]=' ';
i++;
}
else{
name[i]=name[i];
i++;
}
}

i=0;

while (name2[i]!='\0'){
if (name2[i]=='_'){
name2[i]=' ';
i++;
}
else{
name2[i]=name2[i];
i++;
}
}

alfa=fopen(name ,"r");

tempf=fopen("te mp","w");

while ((c = fgetc (alfa)) != EOF)
fputc(c,tempf);

fclose (tempf);
fclose(alfa);
remove (name);

tempf=fopen("te mp","r");
vita=fopen(name 2,"w");
while ((c = fgetc (tempf)) != EOF)
fputc(c,vita);

fclose (tempf);
remove ("temp");
fclose (vita);

printf ("\n\n finished \n\n");

system ("pause");
return 0;

}

[RRick]

Your name for the destination is a directory, not a file. For fopen to work correctly it needs a file name.

You need to check the FILE * values after you call fopen and make sure they are not 0. That is a failure result from fopen. If you don't check the value and try to use the bad FILE *, your program usually crashes and burns with a seg fault.

[newb16]

You talk like windows explorer with its 'copy-paste' metaphor to copy file. Actually when you 'copy' file in explorer, nothing is read, just name of the file is remembered. If you delete it before you issue the 'paste' command, paste will fail.

system() is in stdlib.h

Then, 'real' move command performs no read or write, it modifies only directory content but not the file data. See rename() function documentation.

[4emens]

I just tried to explain the move command...i wanted to say that the file changes directory and there is no file at the old one...

Can someone explain to me hat system() command does?

[weaknessforcats]

The system() command is a function that has srguments used to call OS commands directly.

Since the OS commands vary by OS, the valid system() arguments also vary. So using the system() command renders your program non-portable, which may or may not be a problem.

I usually avoid this thing and use the OS SDK to make my system calls,.