diff --git a/coreutils/cp.c b/coreutils/cp.c
index 3da12b7..ab2ed61 100644
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -81,8 +81,6 @@ int get_stat(const char *path, struct stat *stat_path) {
 }
 
 int cptree(const char *src, const char *dst) {
-	printf("%s %s\n", src, dst);
-
 	struct stat stat_path;
 	get_stat(src, &stat_path);
 
@@ -132,29 +130,16 @@ int cptree(const char *src, const char *dst) {
 }
 
 int main(const int argc, const char **argv) {
-	/* Recursion */
-	unsigned int r_flag;
-
 	int i;
 	for (i = 1; i < argc; i++) {
 		if (argv[i][0] != '-')
 			break;
 
-		else if (!strcmp(argv[i], "-r"))
-			r_flag = 1;
-
 		else if (!strcmp(argv[i], "-h")) {
-			printf("cp [-r] [Src] [Dst]\n");
+			printf("cp [Src] [Dst]\n");
 			return 0;
 		}
 	}
 
-	if (argc - i >= 2) {
-		if (r_flag)
-			return cptree(argv[i], argv[argc - 1]);
-		else
-			return copy(argv[i], argv[argc - 1]);
-	}
-
-	return 0;
+	return cptree(argv[i], argv[argc - 1]);
 }
diff --git a/coreutils/ls.c b/coreutils/ls.c
index 34f6880..04428ad 100644
--- a/coreutils/ls.c
+++ b/coreutils/ls.c
@@ -13,7 +13,7 @@ int list(const char *path, int flag, int label) {
 	}
 
 	/* If its file */
-	if (!S_ISDIR(statbuf.st_mode)) {
+	if (S_ISDIR(statbuf.st_mode) == 0) {
 		puts(path);
 		return 0;
 	}
diff --git a/coreutils/mv.c b/coreutils/mv.c
index 9fcac85..bf44f57 100644
--- a/coreutils/mv.c
+++ b/coreutils/mv.c
@@ -12,9 +12,10 @@ int move(const char *src, const char *dst) {
 		return 1;
 
 	char *bname = basename(copy);
+
 	size_t len = strlen(dst) + strlen(bname) + 2;
 	char *new_path = malloc(len + 1);
-	if (!new_path)
+	if (new_path == NULL)
 		return 1;
 
 	snprintf(new_path, len, "%s/%s", dst, bname);
diff --git a/coreutils/rm.c b/coreutils/rm.c
index cc5f539..40bbae9 100644
--- a/coreutils/rm.c
+++ b/coreutils/rm.c
@@ -22,7 +22,7 @@ int rmtree(const char *path) {
 	if (S_ISDIR(stat_path.st_mode) == 0) {
 		if (unlink(path) < 0) {
 			fprintf(stderr, "rm: %s: is not directory\n", path);
-			return -1;
+			return 1;
 		}
 
 		return 0;
@@ -31,7 +31,7 @@ int rmtree(const char *path) {
 	DIR *dir = opendir(path);
 	if (dir == NULL) {
 		fprintf(stderr, "rm: %s: Can`t open directory\n", path);
-		return -1;
+		return 1;
 	}
 
 	struct dirent *ep;
@@ -73,3 +73,4 @@ int main(const int argc, char **argv) {
 
 	return 0;
 }
+