by Jeff Wa » Sun, 27 Oct 2002 09:48:36
The functions, system() or exec(), can triggle the other program,
foo.exe to run, however, how to get the return value of it, which is
a char string? (Actually that program just fetches some database info
and display them, so I may re-code it to return a string). I don't want
to write the output into a file then retrive them.
It's under Unix enviroment, and C program. Please help! Thanks!
Jeff
by j.. » Sun, 27 Oct 2002 12:54:23
man popen
by Paul Pluzhniko » Sun, 27 Oct 2002 13:05:08
What you want is not the return value, but the output.Quote:> (Actually that program just fetches some database info
> and display them, so I may re-code it to return a string). I don't want
> to write the output into a file then retrive them.
> It's under Unix enviroment, and C program. Please help! Thanks!
Cheers,
--
In order to understand recursion you must first understand recursion.
by Jeff Wa » Wed, 30 Oct 2002 01:37:55
> > The functions, system() or exec(), can triggle the other program,
> > foo.exe to run, however, how to get the return value of it, which is
> > a char string?
> Return value (aka exit code) *is* an int on all UNICes.
> > (Actually that program just fetches some database info
> > and display them, so I may re-code it to return a string). I don't want
> > to write the output into a file then retrive them.
> > It's under Unix enviroment, and C program. Please help! Thanks!
> What you want is not the return value, but the output.
> Try "man popen"
> Cheers,
1. getting the return value of a command executed on another host
Folks,
I am doing a shell script in which I have to excute a command on another
host. I can do this by remsh.
So what I do is the typical remsh command
as in remsh hostname command
But what i want is the return value of the command that was executed on the
remot host. When I say echo $? it returns the value of the remsh command
which is successful. I tried this using a command which failed on the remote
host. but still I was gettin $? as 0 since the remsh command itself
succeeded. I am using ksh on HP-UX 10.2
Any pointers??
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