cd in c

SMB3Master · 08-26-2003, 08:15 PM

How do I change a directory in C? cd doesn't work, it always stays in the directory the program is in.

dharmender_rai · 08-26-2003, 08:33 PM

The shell on which you run a command is itself a process. The directory which it shows would be inherited to all the processes that you invoke from there. But after these invoked child processes change the direcories, the result will not be shown in the parent i.e. shell.
In short the change in directory is process-specific.

SMB3Master · 08-26-2003, 08:44 PM

How can I get a list of files in another directory?

devoyage · 08-26-2003, 09:45 PM

To change the current working directory of your program (which will be where you are when you run it:

Code:

#include<unistd.h>
chdir("path");

To list the contents of a directory:

Code:

#include<dirent.h>
DIR *dp;
struct dirent *dirp;

if((dp=opendir("path"))==NULL){
   perror();
   exit(1);
}

while((dirp = readdir(dp)) != NULL){
    printf("%s\n",dirp->d_name);
}

also check out the man pages on those functions

Enjoy!

SMB3Master · 08-27-2003, 07:13 AM

Thanks

vanquisher · 08-27-2003, 01:49 PM

chdir("desination directory");

That's because cd is not an executable...

SMB3Master · 08-27-2003, 03:42 PM

I was trying to do system("cd directory").