minibash.c

// Minibash on p.173
// Fixed for execlp()
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>

int main() {
	char buf[BUFSIZ] = {0};
	pid_t pid;

	while(1) {
		printf("minibash$ ");
		scanf("%s", buf);
		pid = fork();
		if(pid == 0) {
			if(execlp(buf, buf, NULL) < 0)
				puts("Exec error");
		} else if(pid > 0) {
			int status;
			waitpid(pid, &status, 0);
		} else {
			printf("Fork error %d\n", pid);
		}
	}
	return 0;
}