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system("CD"). Help please :(
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Hey guys. I am trying to make a program that prompts the user to enter in a directory path, and then the program goes to that directory and displays what is inside.
Something like that. Does anyone know a way to do this? I keep getting errors.
Any help would be greatly appreciated =D
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Something like that. Does anyone know a way to do this? I keep getting errors.
Any help would be greatly appreciated =D
The first thing you need to do is break your dependence on the system() function. It spawns a new shell (cmd.exe, probably), changes the directory for that new shell, then terminates. Your program's current working directory remains the same.
Most C/C++ compilers provide versions of the <unistd.h> function chdir().
You can get information about the files in the directory using opendir(), etc. in <dirent.h>, and stat() in <sys/stat.h>. For all these, you'll also have to #include <sys/types.h>.
If you want to do it the Microsoft Windows way, you'll have to #include <windows.h> and use SetCurrentDirectory() and the FindFirstFile()/FindNextFile() functions.
Good luck!
Most C/C++ compilers provide versions of the <unistd.h> function chdir().
You can get information about the files in the directory using opendir(), etc. in <dirent.h>, and stat() in <sys/stat.h>. For all these, you'll also have to #include <sys/types.h>.
If you want to do it the Microsoft Windows way, you'll have to #include <windows.h> and use SetCurrentDirectory() and the FindFirstFile()/FindNextFile() functions.
Good luck!
You could use something like :
cd PATH & dir & pause
In the system function .
cd PATH & dir & pause
In the system function .
Last edited by jen140; Aug 6th, 2009 at 10:05 pm.
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The system function will not work for what you want to do because as soon as system() returns to your program the operating system discards the results of cd and resets the current directory to what it was before the program called system(). This is the same identical behavior of *nix operating systems and *nix shells.
The only way to make your program work is to call the standard C function chdir(), as previously recommended (assuming your operating system supports it, and some do not.)
The only way to make your program work is to call the standard C function chdir(), as previously recommended (assuming your operating system supports it, and some do not.)
Last edited by Ancient Dragon; Aug 6th, 2009 at 10:11 pm.
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Practically a Master Poster
There is quite a bit of overhead, but you can use some of the VUL functions of VXL.
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Originally Posted by daviddoria 
There is quite a bit of overhead, but you can use some of the VUL functions of VXL.
Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
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Originally Posted by Duoas
The first thing you need to do is break your dependence on the system() function. It spawns a new shell (cmd.exe, probably), changes the directory for that new shell, then terminates. Your program's current working directory remains the same.
Most C/C++ compilers provide versions of the <unistd.h> function chdir().
You can get information about the files in the directory using opendir(), etc. in <dirent.h>, and stat() in <sys/stat.h>. For all these, you'll also have to #include <sys/types.h>.
If you want to do it the Microsoft Windows way, you'll have to #include <windows.h> and use SetCurrentDirectory() and the FindFirstFile()/FindNextFile() functions.
Good luck!
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Oh, and yes I have #included all the neccessary files.
Is there any way to chdir a variable?
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So?? All you have to do is pass the char* of string.
chdir(cFolder.c_str(); . And note that the >> operator will not allow spaces in whatever it is that you type. call getline() if you need the spaces. Last edited by Ancient Dragon; Aug 6th, 2009 at 11:37 pm.
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Because they require a const char* not a std::string. Try string.c_str()
And remove that system() call at the end.
And remove that system() call at the end.
Last edited by MosaicFuneral; Aug 6th, 2009 at 11:38 pm. Reason: Typo.
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