pipe_exec_test.c

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>




int main( int argc , char* argv[] )
{

char read[30];

pid_t child ;

int coll[1] ;

pipe(coll);

child = fork();





if( child == 0 )
{
	sprintf(read,"%d",coll[0]);
	execl( "./show" , "show" , read , NULL );

}




write( coll[1] , "process message\n" , strlen("process message\n") );







return 0 ;

}