diff --git a/config.h b/config.h
index e605e4b..4407f16 100644
--- a/config.h
+++ b/config.h
@@ -60,10 +60,10 @@ static binding key_binding[] = {
 	{ "on", order_by,		sort_natural,	"order natural"			},
 	{ "or", not_implemented,	"",		"order reverse"			},
 	{ "oe", not_implemented,	"",		"order extension"		},
-	{ "os", not_implemented,	"",		"order size"			},
-	{ "ot", not_implemented,	"",		"order type"			},
-	{ "oz", not_implemented,	"",		"order random"			},
-	{ "oa", order_by,		sort_alpha,	"order random"			},
+	{ "os", order_by,		sort_size,	"order size"			},
+	{ "ot", order_by,		sort_type,	"order type"			},
+	{ "oz", order_by,		sort_random,	"order random"			},
+	{ "oa", order_by,		sort_alpha,	"order alphabetically"		},
 
 	{ "mk", makedir,		NULL,		"create directory"		},
 	{ "mf", makefile,		NULL,		"create file"			},
diff --git a/sorting.c b/sorting.c
index b350b62..f9173e5 100644
--- a/sorting.c
+++ b/sorting.c
@@ -1,6 +1,7 @@
 #include <curses.h>
 #include <dirent.h>
 #include <strings.h>
+#include <stdlib.h>
 #include "defines.h"
 
 extern unsigned int settings;
@@ -40,9 +41,118 @@ int sort_natural(const void *file0, const void *file1){
 		}
 	}
 }
-
 int sort_alpha(const void *file0, const void *file1){
 	char *file_name0 = ((file*)file0)->file_name;
 	char *file_name1 = ((file*)file1)->file_name;
 	return strcmp(file_name0, file_name1);
 }
+int sort_random(const void *file0, const void *file1){
+	unsigned char file_type0 = ((file*)file0)->file_type;
+	unsigned char file_type1 = ((file*)file1)->file_type;
+	char *file_name0 = ((file*)file0)->file_name;
+	char *file_name1 = ((file*)file1)->file_name;
+	static int seed = 0;
+	static int random = 0;
+
+	if (seed == 0) {
+		seed = rand();
+	}
+	if (random == 0) {
+		random = seed;
+	}
+	if (strcmp(file_name0, ".") == 0 || strcmp(file_name0, "..") == 0) {
+		return -1;
+	}
+	char weight = 0;
+	if (file_type0 == FILE_TYPE_DIR || file_type0 == FILE_TYPE_SYMLINK) {
+		weight |= 1;
+	} 
+	if (file_type1 == FILE_TYPE_DIR || file_type1 == FILE_TYPE_SYMLINK) {
+		weight |= 2;
+	}
+	if (weight == 0 || weight == 3) {
+		random = random > 1;
+		if ((random & 2) == 2) {
+			return -1;
+		} else {
+			if (random & 1){
+				return 1;
+			} else {
+				return 0;
+			}
+		}
+	} else {
+		if (file_type0 > file_type1) {
+			return 1;
+		} else if (file_type0 < file_type1) {
+			return -1;
+		} else {
+			random = random > 1;
+			if ((random & 2) == 2) {
+				return -1;
+			} else {
+				if (random & 1){
+					return 1;
+				} else {
+					return 0;
+				}
+			}
+		}
+	}
+	return 0;
+}
+int sort_type(const void *file0, const void *file1){
+	unsigned char file_type0 = ((file*)file0)->file_type;
+	unsigned char file_type1 = ((file*)file1)->file_type;
+	char *file_name0 = ((file*)file0)->file_name;
+	char *file_name1 = ((file*)file1)->file_name;
+	if (file_type0 == file_type1) {
+		return strcasecmp(file_name0, file_name1);
+	} else if (file_type0 == FILE_TYPE_DIR || file_type0 == FILE_TYPE_SYMLINK) {
+		return -1;
+	} else if (file_type1 == FILE_TYPE_DIR || file_type1 == FILE_TYPE_SYMLINK) {
+		return 1;
+	} else {
+		if (file_type0 > file_type1) {
+			return -1;
+		} else if (file_type0 < file_type1) {
+			return 1;
+		} else {
+			return strcasecmp(file_name0, file_name1);
+		}
+	}
+}
+int sort_size(const void *file0, const void *file1){
+	unsigned char file_type0 = ((file*)file0)->file_type;
+	unsigned char file_type1 = ((file*)file1)->file_type;
+	unsigned long file_size0 = ((file*)file0)->file_size;
+	unsigned long file_size1 = ((file*)file1)->file_size;
+	char *file_name0 = ((file*)file0)->file_name;
+	char *file_name1 = ((file*)file1)->file_name;
+	if (strcmp(file_name0, ".") == 0 || strcmp(file_name0, "..") == 0) {
+		return -1;
+	}
+	if (file_type0 == file_type1) {
+		if (file_size0 > file_size1) {
+			return -1;
+		} else if (file_size0 < file_size1) {
+			return 1;
+		} else {
+			return strcasecmp(file_name0, file_name1);
+		}
+	} else {
+		if (file_type0 == FILE_TYPE_DIR || file_type0 == FILE_TYPE_SYMLINK) {
+			return -1;
+		} else if (file_type1 == FILE_TYPE_DIR || file_type1 == FILE_TYPE_SYMLINK) {
+			return 1;
+		} else {
+			if (file_size0 > file_size1) {
+				return -1;
+			} else if (file_size0 < file_size1) {
+				return 1;
+			} else {
+				return strcasecmp(file_name0, file_name1);
+			}
+		}
+	}
+}
diff --git a/sorting.h b/sorting.h
index 711d7aa..8170a20 100644
--- a/sorting.h
+++ b/sorting.h
@@ -10,4 +10,7 @@ void sort_dir(unsigned long *dir_length_width, char *dir_content);
 void sort_dir(unsigned long *dir_length_width, char *dir_content);
 int sort_natural(const void *file0, const void *file1);
 int sort_alpha(const void *file0, const void *file1);
+int sort_random(const void *file0, const void *file1);
+int sort_type(const void *file0, const void *file1);
+int sort_size(const void *file0, const void *file1);