diff --git a/src/rmdir.c b/src/rmdir.c
new file mode 100644
index 0000000..cd994a2
--- /dev/null
+++ b/src/rmdir.c
@@ -0,0 +1,84 @@
+/* rmdir.c */
+
+
+
+#include <unistd.h>
+extern int optind;
+#include <stdio.h>
+
+
+/* rmdir */
+static int _rmdir_p(char * pathname);
+static int _rmdir(int flagp, int argc, char * argv[])
+{
+	int res = 0;
+	int i;
+
+	for(i = 0; i < argc; i++)
+	{
+		if(flagp)
+		{
+			if(_rmdir_p(argv[i]) == -1)
+				res = 2;
+			continue;
+		}
+		if(rmdir(argv[i]) == -1)
+		{
+			perror(argv[i]);
+			res = 2;
+		}
+	}
+	return res;
+}
+
+static int _rmdir_p(char * pathname)
+{
+	char * str;
+
+	str = pathname;
+	while(*str++);
+	while(--str != pathname)
+	{
+		if(*str != '/')
+			continue;
+		*str = '\0';
+		if(rmdir(pathname) == -1)
+		{
+			perror(pathname);
+			return -1;
+		}
+	}
+	return 0;
+}
+
+
+/* usage */
+static int _usage(void)
+{
+	fprintf(stderr, "Usage: rmdir [-p] dir...\n\
+  -p    remove all directories in a pathname\n");
+	return 1;
+}
+
+
+/* main */
+int main(int argc, char * argv[])
+{
+	int flagp = 0;
+	int o;
+
+	while((o = getopt(argc, argv, "p")) != -1)
+	{
+		switch(o)
+		{
+			case 'p':
+				flagp = 1;
+				break;
+			case '?':
+				return _usage();
+		}
+	}
+	if(optind == argc)
+		return _usage();
+	return _rmdir(flagp, argc - optind, &argv[optind]);
+}