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Old 05-12-2004, 07:08 PM   #1
khucinx
LQ Newbie
 
Registered: May 2004
Posts: 23

Rep: Reputation: 15
Question c code vs shell script again?


thank's to someone who help me before, but there are some question again. how can i passing argument to shell script and how can i get return value from that when i run test?

if the c code like :

/*test.c*/
#include <stdio.h>
#include <stdlib.h>

int main()
{
system("/bin/csh -c ./coba apa");
printf("succes\n");
return 0;
}

and shell script (coba) like :

#!/bin/sh

echo $1
i=10
return $i

so i want "apa" can be passed to coba script and the value $i in coba can be access in test.c

please, how?
 
Old 05-12-2004, 09:44 PM   #2
itsme86
Senior Member
 
Registered: Jan 2004
Location: Oregon, USA
Distribution: Slackware
Posts: 1,246

Rep: Reputation: 58
Code:
int main()
{
  int coba_return;

  coba_return = WEXITSTATUS(system("/bin/csh -c ./coba apa"));
  if(coba_return == 0)
    printf("success\n");
  else
    printf("coba returned value: %d\n", coba_return);

  return 0;
}
This is right from 'man system':
Quote:
RETURN VALUE
The value returned is -1 on error (e.g. fork failed), and
the return status of the command otherwise. This latter
return status is in the format specified in wait(2).
Thus, the exit code of the command will be WEXITSTA-
TUS(status). In case /bin/sh could not be executed, the
exit status will be that of a command that does exit(127).

Last edited by itsme86; 05-12-2004 at 09:47 PM.
 
  


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