system question

[David Schwartz]

I'm writing a little c program and one of things I'm trying to get it to do
is cd to a particular directory and then run an exe that is on my path, as
follows...

strcpy(working_string, "c:\\davedata\\bats\\ks.exe fnord");
system("cd \\playtime\\d\\build\\html");
system(working_string);

But ks.exe does not seem to be invoked on the files in the
\\playtime\\d\\build\\html directory.

Can someone tell me how to do this?

[Jens.Toerring]

David Schwartz <da*******@hotmail.com> wrote:

I'm writing a little c program and one of things I'm trying to get it to do
is cd to a particular directory and then run an exe that is on my path, as
follows... strcpy(working_string, "c:\\davedata\\bats\\ks.exe fnord");
system("cd \\playtime\\d\\build\\html");
system(working_string); But ks.exe does not seem to be invoked on the files in the
\\playtime\\d\\build\\html directory. Can someone tell me how to do this?

The first invocation of system() creates a shell in which you do the 'cd'.
Then the shell exits. As the next step you invoke a completely new shell
by calling system() again that has no idea about the working directory of
the other shell that's already dead. Execute both commands in the _same_
call of system().
Regards, Jens
--
\ Jens Thoms Toerring ___ Je***********@physik.fu-berlin.de
\__________________________ http://www.toerring.de

[Dan Pop]

In <c5************@uni-berlin.de> Je***********@physik.fu-berlin.de writes:

David Schwartz <da*******@hotmail.com> wrote:

I'm writing a little c program and one of things I'm trying to get it to do
is cd to a particular directory and then run an exe that is on my path, as
follows...

strcpy(working_string, "c:\\davedata\\bats\\ks.exe fnord");
system("cd \\playtime\\d\\build\\html");
system(working_string);

But ks.exe does not seem to be invoked on the files in the
\\playtime\\d\\build\\html directory.

Can someone tell me how to do this?

The first invocation of system() creates a shell in which you do the 'cd'.
Then the shell exits. As the next step you invoke a completely new shell
by calling system() again that has no idea about the working directory of
the other shell that's already dead. Execute both commands in the _same_
call of system().

And if your shell doesn't allow this directly, build a script
containing the two commands and execute that script with system().

Dan
--
Dan Pop
DESY Zeuthen, RZ group
Email: Da*****@ifh.de

[CBFalconer]

David Schwartz wrote:

I'm writing a little c program and one of things I'm trying to
get it to do is cd to a particular directory and then run an exe
that is on my path, as follows...

strcpy(working_string, "c:\\davedata\\bats\\ks.exe fnord");
system("cd \\playtime\\d\\build\\html");
system(working_string);

But ks.exe does not seem to be invoked on the files in the
\\playtime\\d\\build\\html directory.

Can someone tell me how to do this?

Not here. The C language has neither directories nor exes nor
paths. You want a group dealing with your peculiar system, which
I suspect to be either Windows or MsDos.

--
Chuck F (cb********@yahoo.com) (cb********@worldnet.att.net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home.att.net> USE worldnet address!