SLIP1

#include<stdio.h>
#include<unistd.h>
int main()
{
int fd[2],dupFd;
char *filename1 ="ls";
char *filename2 ="wc";
char *arg1 = "-l";
pipe(fd);
if(!fork())
{
close(1);
dup(fd[1]);
close(fd[0]);
execlp(filename1,filename1,arg1,NULL);
}else
{
close(0);
dup(fd[0]);
close(fd[1]);
execlp(filename2,filename2,arg1,NULL);
}
}