diff --git a/.clangd b/.clangd
deleted file mode 100644
index ef142b4..0000000
--- a/.clangd
+++ /dev/null
@@ -1,19 +0,0 @@
-If:
-  PathMatch:
-    - .*\.c
-    - .*\.h
-  
-
-CompileFlags:
-  Add:
-    - -xc
-    - -std=c89
-    - -Isrc
-    - -Wall
-    - -Wextra,
-    - -pedantic
-    - -O2
-    - -ferror-limit=0
-    - -D_DEFAULT_SOURCE
-    - -D_CHECK_LINK
-  Compiler: clang
diff --git a/Makefile b/Makefile
index d68e96a..07ffbf4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,14 @@
 CC = gcc
 
-SOURCE = src
+SOURCE =  src
+SOURCE += lib
+SOURCE += command
 
 MAJOR = 0
 MINOR = 0
 PATCH = 1
 
-INCFLAGS  = $(shell echo $(SOURCE) | xargs printf -- '-I%s')
+INCFLAGS  = $(shell echo $(SOURCE) | xargs printf -- '-I%s ')
 
 CCFLAGS  = -std=c89 -Wall -Wextra -pedantic -O2 
 CCFLAGS += -D_DEFAULT_SOURCE -DMAJOR=$(MAJOR) -DMINOR=$(MINOR) -DPATCH=$(PATCH) -DCHECK_LINK
@@ -21,9 +23,9 @@ SRC = $(shell find $(SOURCE) -name "*.c")
 DIR = $(shell find $(SOURCE) -type d)
 OBJ = $(SRC:%.c=$(BIN)/%.o)
 
-.PHONY: dirs run clean build install uninstall
+.PHONY: empty dirs run clean build install uninstall
 
-EOF: clean build
+empty: clean build
 
 dirs:
 	echo $(DIR) | xargs printf -- '$(BIN)/%s\n' | xargs mkdir -p
diff --git a/src/commands/cat.c b/command/cat.c
similarity index 98%
rename from src/commands/cat.c
rename to command/cat.c
index 0495fe3..c392a46 100644
--- a/src/commands/cat.c
+++ b/command/cat.c
@@ -1,6 +1,8 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <ctype.h>
+#include <stdlib.h>
 
 static struct {
     bool number_lines;
diff --git a/src/commands/cp.c b/command/cp.c
similarity index 98%
rename from src/commands/cp.c
rename to command/cp.c
index df88155..ca80f69 100644
--- a/src/commands/cp.c
+++ b/command/cp.c
@@ -1,7 +1,12 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
 #include <dirent.h>
+#include <errno.h>
 #include <limits.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
diff --git a/src/commands/dd.c b/command/dd.c
similarity index 96%
rename from src/commands/dd.c
rename to command/dd.c
index 1387317..67f8be3 100644
--- a/src/commands/dd.c
+++ b/command/dd.c
@@ -1,4 +1,7 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
 
 static void help(void) {
     printf("Usage: dd [if=FILE] [of=FILE] [bs=N] [count=N]\n\n");
diff --git a/src/commands/echo.c b/command/echo.c
similarity index 97%
rename from src/commands/echo.c
rename to command/echo.c
index fe70a6a..a0ab78d 100644
--- a/src/commands/echo.c
+++ b/command/echo.c
@@ -1,4 +1,7 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
 
 static struct {
     bool escape_codes;
diff --git a/src/commands/ed.c b/command/ed.c
similarity index 99%
rename from src/commands/ed.c
rename to command/ed.c
index d7e8881..472473f 100644
--- a/src/commands/ed.c
+++ b/command/ed.c
@@ -1,5 +1,8 @@
-#include "../command.h"
-#include "../util//regex.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
+#include <string.h>
 
 #define INPUT_LEN 1024
 
diff --git a/src/commands/grep.c b/command/grep.c
similarity index 98%
rename from src/commands/grep.c
rename to command/grep.c
index 4062734..0dad094 100644
--- a/src/commands/grep.c
+++ b/command/grep.c
@@ -1,5 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 static struct {
     bool filename_prefix;
diff --git a/src/commands/groups.c b/command/groups.c
similarity index 53%
rename from src/commands/groups.c
rename to command/groups.c
index bd2e5f9..cb950be 100644
--- a/src/commands/groups.c
+++ b/command/groups.c
@@ -1,20 +1,41 @@
-#include "../command.h"
+#include "args.h"
+#include "command.h"
+#include "lslib.h"
 
+#include <errno.h>
 #include <grp.h>
 #include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
-COMMAND_EMPTY(groups) {
+static void help (void) {
+    printf("Usage: groups [USER]\n\n");
+    printf("Print the groups USER is in\n");
+}
+
+COMMAND(groups) {
 
     uid_t uid;
     int ngroups, i;
     gid_t* groups;
     struct passwd* pw;
 
-    uid = getuid();
+    parse_help(argc, argv, help);
     
-    pw = getpwuid(uid);
+    if (argc < 1) {
+        uid = getuid();
+        pw = getpwuid(uid);
+    } else {
+        pw = getpwnam(argv[0]);
+    }
+
     if(pw == NULL){
-        error("failed to fetch groups: %s", strerror(errno));
+        if (errno == 0) {
+            error("user not found");
+        } else {
+            error("failed to fetch groups: %s", strerror(errno));
+        }
     }
     
     ngroups = 0;
diff --git a/src/commands/head.c b/command/head.c
similarity index 98%
rename from src/commands/head.c
rename to command/head.c
index da8b9b3..c28a82c 100644
--- a/src/commands/head.c
+++ b/command/head.c
@@ -1,4 +1,7 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
 
 static struct {
     int count;
diff --git a/src/commands/id.c b/command/id.c
similarity index 60%
rename from src/commands/id.c
rename to command/id.c
index 3bef4f6..3a63989 100644
--- a/src/commands/id.c
+++ b/command/id.c
@@ -1,9 +1,20 @@
-#include "../command.h"
+#include "args.h"
+#include "command.h"
+#include "lslib.h"
 
+#include <errno.h>
 #include <grp.h>
 #include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
-COMMAND_EMPTY(user_id) {
+static void help (void) {
+    printf("Usage: id [USER]\n\n");
+    printf("Print information about the USER\n");
+}
+
+COMMAND(user_id) {
     
     uid_t uid;
     gid_t gid, *groups;
@@ -11,13 +22,24 @@ COMMAND_EMPTY(user_id) {
     struct passwd* pw;
     struct group* ugr;
 
-    uid = getuid();
-    gid = getgid();
+    parse_help(argc, argv, help);
     
-    pw = getpwuid(uid);
-    if(pw == NULL){
-        error("failed to fetch groups: %s", strerror(errno));
+    if (argc < 1) {
+        uid = getuid();
+        pw = getpwuid(uid);
+    } else {
+        pw = getpwnam(argv[0]);
     }
+
+    if(pw == NULL){
+        if (errno == 0) {
+            error("user not found");
+        } else {
+            error("failed to fetch groups: %s", strerror(errno));
+        }
+    }
+
+    uid = pw->pw_uid;
     
     ngroups = 0;
     getgrouplist(pw->pw_name, pw->pw_gid, NULL, &ngroups);
@@ -25,6 +47,7 @@ COMMAND_EMPTY(user_id) {
     groups = malloc(sizeof(gid_t) * ngroups);
     getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
    
+    gid = pw->pw_gid;
     ugr = getgrgid(gid);
     printf("uid=%d(%s) gid=%d(%s) ",
            uid, ugr->gr_name, gid, ugr->gr_name);
diff --git a/src/commands/ls.c b/command/ls.c
similarity index 98%
rename from src/commands/ls.c
rename to command/ls.c
index e8d58d0..8ed796f 100644
--- a/src/commands/ls.c
+++ b/command/ls.c
@@ -1,11 +1,16 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <grp.h>
 #include <pwd.h>
 #include <dirent.h>
 #include <ftw.h>
 #include <limits.h>
+#include <stdlib.h>
 #include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
 
 #define FILE_COLOR      ANSCII BLACK COLOR
 #define DIR_COLOR       ANSCII BOLD NEXT NORMAL BLUE COLOR
@@ -17,6 +22,12 @@
 #define BLK_COLOR       ANSCII BOLD NEXT NORMAL YELLOW COLOR
 #define SOCK_COLOR      ANSCII BOLD NEXT NORMAL MAGENTA COLOR
 
+enum When {
+    YES,
+    NO,
+    AUTO
+};
+
 static struct {
     bool hidden;
     bool hide_dot;
diff --git a/src/commands/mkdir.c b/command/mkdir.c
similarity index 93%
rename from src/commands/mkdir.c
rename to command/mkdir.c
index 02fccca..0d3950d 100644
--- a/src/commands/mkdir.c
+++ b/command/mkdir.c
@@ -1,4 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
 
 static struct {
     bool make_parent;
diff --git a/src/commands/mv.c b/command/mv.c
similarity index 96%
rename from src/commands/mv.c
rename to command/mv.c
index d203607..adce2b7 100644
--- a/src/commands/mv.c
+++ b/command/mv.c
@@ -1,4 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
 
 static struct {
     bool prompt;
diff --git a/src/commands/printf.c b/command/printf.c
similarity index 97%
rename from src/commands/printf.c
rename to command/printf.c
index 519b8a2..99139d0 100644
--- a/src/commands/printf.c
+++ b/command/printf.c
@@ -1,4 +1,7 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
 
 static long cast_long(const char* arg) {
     char* end;
diff --git a/src/commands/rm.c b/command/rm.c
similarity index 97%
rename from src/commands/rm.c
rename to command/rm.c
index 8ce3e1c..81a956a 100644
--- a/src/commands/rm.c
+++ b/command/rm.c
@@ -1,5 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
 #include <dirent.h>
+#include <errno.h>
+#include <stdlib.h>
 #include <string.h>
 
 static struct {
diff --git a/src/commands/tac.c b/command/tac.c
similarity index 97%
rename from src/commands/tac.c
rename to command/tac.c
index d188de9..9e9e48e 100644
--- a/src/commands/tac.c
+++ b/command/tac.c
@@ -1,8 +1,10 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <limits.h>
+#include <time.h>
 
 static void help(void) {
     printf("Usage: tac [FILE]...\n\n");
diff --git a/src/commands/tail.c b/command/tail.c
similarity index 98%
rename from src/commands/tail.c
rename to command/tail.c
index 07b3d2b..8137eca 100644
--- a/src/commands/tail.c
+++ b/command/tail.c
@@ -1,4 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 static struct {
     bool lines;
diff --git a/src/commands/tee.c b/command/tee.c
similarity index 96%
rename from src/commands/tee.c
rename to command/tee.c
index b9b31be..0462517 100644
--- a/src/commands/tee.c
+++ b/command/tee.c
@@ -1,6 +1,8 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <signal.h>
+#include <stdlib.h>
 
 static struct {
     bool append;
diff --git a/src/commands/wc.c b/command/wc.c
similarity index 98%
rename from src/commands/wc.c
rename to command/wc.c
index d8905a5..3150045 100644
--- a/src/commands/wc.c
+++ b/command/wc.c
@@ -1,6 +1,8 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <ctype.h>
+#include <stdlib.h>
 
 static struct {
     bool newlines;
diff --git a/src/commands/whoami.c b/command/whoami.c
similarity index 86%
rename from src/commands/whoami.c
rename to command/whoami.c
index 7fd7c85..5823b8f 100644
--- a/src/commands/whoami.c
+++ b/command/whoami.c
@@ -1,6 +1,9 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 #include <pwd.h>
+#include <stdlib.h>
+#include <unistd.h>
 
 static void help(void) {
     printf("Usage: whoami\n\n");
diff --git a/src/commands/xargs.c b/command/xargs.c
similarity index 97%
rename from src/commands/xargs.c
rename to command/xargs.c
index 3008c3c..2a41460 100644
--- a/src/commands/xargs.c
+++ b/command/xargs.c
@@ -1,6 +1,11 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
+
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 static struct {
     bool null_seperated;
diff --git a/src/commands/yes.c b/command/yes.c
similarity index 92%
rename from src/commands/yes.c
rename to command/yes.c
index 6a44789..f979a9f 100644
--- a/src/commands/yes.c
+++ b/command/yes.c
@@ -1,4 +1,5 @@
-#include "../command.h"
+#include "command.h"
+#include "lslib.h"
 
 static void help(void) {
     printf("Usage: yes [STRING]\n\n");
diff --git a/compile_flags.txt b/compile_flags.txt
new file mode 100644
index 0000000..396bda2
--- /dev/null
+++ b/compile_flags.txt
@@ -0,0 +1,15 @@
+-c
+-std=c89
+-Wall
+-Wextra
+-pedantic
+-O2
+-Isrc
+-Icommand
+-Ilib
+-D_DEFAULT_SOURCE
+-DMAJOR=0
+-DMINOR=0
+-DPATCH=0
+-DCHECK_LINK
+
diff --git a/lib/args.c b/lib/args.c
new file mode 100644
index 0000000..f907746
--- /dev/null
+++ b/lib/args.c
@@ -0,0 +1,111 @@
+#include "args.h"
+#include "error.h"
+#include "convert.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef MAJOR
+#define MAJOR 0
+#endif
+
+#ifndef MINOR
+#define MINOR 0
+#endif
+
+#ifndef PATCH
+#define PATCH 0
+#endif
+
+void check_arg (char* arg) {
+    if (arg == NULL) {
+        error("expected another argument after option");
+    }
+}
+
+void global_help(void (*help)(void)) {
+    printf("LazySphere v%d.%d.%d multi-call binary.\n\n", MAJOR, MINOR, PATCH);
+    help();
+    exit(EXIT_SUCCESS);
+}
+
+void parse_help(int argc, char** argv, void (*help)(void)) {
+    int i;
+
+    if (argc < 1) return;
+
+    for (i = 0; i < argc; i++) {
+        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
+        if (help != NULL && streql("--help", argv[i])) global_help(help);
+    }
+}
+
+int parse_args(int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*)) {
+    int start, i, current;
+    char* next_arg;
+
+    if (argc < 1) return 0;
+
+    start = 0;
+    for (i = 0; i < argc; i++) {
+        
+        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
+        if (help != NULL && streql("--help", argv[i])) global_help(help);
+
+        if (i + 1 == argc) {
+            next_arg = NULL;
+        } else {
+            next_arg = argv[i+1];
+        }
+
+        current = i;
+
+        if (prefix("--", argv[i])) {
+            int r;
+
+            if (long_arg == NULL) {
+                goto exit;
+            }
+            
+            r = long_arg(argv[current], next_arg);
+            
+            if (r == ARG_USED) {
+                i++;
+                start++;
+            } else if (r == ARG_IGNORE) {
+                goto exit;
+            } else if (r == ARG_INVALID) {
+                error("invalid argument %s", argv[current]);
+            
+            }
+        } else {
+            size_t j;
+            int r;
+
+            if (short_arg == NULL) {
+                goto exit;
+            }
+
+            for (j = 1; j < strlen(argv[current]); j++) {
+                
+                r = short_arg(argv[current][j], next_arg);
+                
+                if (r == ARG_USED) {
+                    i++;
+                    start++;
+                } else if (r == ARG_IGNORE) {
+                    goto exit;
+                } else if (r == ARG_INVALID) {
+                    error("invalid argument -%c", argv[current][j]);
+                }
+            }
+        }
+
+        start++;
+    }
+
+exit:
+
+    return start;
+}
diff --git a/lib/args.h b/lib/args.h
new file mode 100644
index 0000000..0b89fca
--- /dev/null
+++ b/lib/args.h
@@ -0,0 +1,18 @@
+#ifndef ARGS_H
+#define ARGS_H
+
+#define UNUSED(x) (void)(x)
+#define ARG_UNUSED  0
+#define ARG_USED    1
+#define ARG_IGNORE  2
+#define ARG_INVALID 3
+
+void check_arg (char* arg);
+
+void global_help(void (*help)(void));
+
+void parse_help (int argc, char** argv, void (*help)(void));
+
+int parse_args (int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*));
+
+#endif
diff --git a/lib/buffer.c b/lib/buffer.c
new file mode 100644
index 0000000..2bee94b
--- /dev/null
+++ b/lib/buffer.c
@@ -0,0 +1,60 @@
+#include "buffer.h"
+#include "convert.h"
+
+#include <limits.h>
+#include <string.h>
+
+static int push_path_buffer_b(char* buf, int* index, const char* string) {
+    int save, string_len;
+
+    save = *index;
+    if (*index > 1 || (*index == 1 && buf[0] != '/')) {
+        buf[(*index)++] = '/';
+    }
+
+    string_len = strlen(string);
+    memcpy(buf + *index, string, string_len + 1);
+    
+    *index += string_len;
+    
+    return save;
+}
+
+static void pop_path_buffer_b(char* buf, int* index, int i) {
+    *index = i;
+    buf[*index] = '\0';
+}
+
+static char path_buffer[PATH_MAX + 1];
+static int path_buffer_index = 0;
+
+char* get_path_buffer(void) {
+    return path_buffer;
+}
+
+int push_path_buffer(const char* string) {
+    return push_path_buffer_b(path_buffer, &path_buffer_index, string);
+}
+
+void pop_path_buffer(int i) {
+    pop_path_buffer_b(path_buffer, &path_buffer_index, i);
+}
+
+static char path_buffer_2[PATH_MAX + 1];
+static int path_buffer_index_2 = 0;
+
+char* get_path_buffer_2(void) {
+    return path_buffer_2;
+}
+
+int push_path_buffer_2(const char* string) {
+    return push_path_buffer_b(path_buffer_2, &path_buffer_index_2, string);
+}
+
+void pop_path_buffer_2(int i) {
+    pop_path_buffer_b(path_buffer_2, &path_buffer_index_2, i);
+}
+
+bool is_dot_dir(const char* path) {
+    return streql(path, ".") || streql(path, "..");
+}
diff --git a/lib/buffer.h b/lib/buffer.h
new file mode 100644
index 0000000..fd47ee7
--- /dev/null
+++ b/lib/buffer.h
@@ -0,0 +1,16 @@
+#ifndef BUFFER_H
+#define BUFFER_H
+
+#include "def.h"
+
+char* get_path_buffer(void);
+int push_path_buffer(const char* string);
+void pop_path_buffer(int i);
+
+char* get_path_buffer_2(void);
+int push_path_buffer_2(const char* string);
+void pop_path_buffer_2(int i);
+
+bool is_dot_dir(const char* path);
+
+#endif
diff --git a/lib/convert.c b/lib/convert.c
new file mode 100644
index 0000000..071268e
--- /dev/null
+++ b/lib/convert.c
@@ -0,0 +1,126 @@
+#include "convert.h"
+#include "error.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+long int get_number(const char* text) {
+    char* end;
+    long int n = strtol(text, &end, 10);
+    if (text == end) {
+        error("%s is not a valid number", text);
+    }
+    return n;
+}
+
+long int get_blkm(const char* text) {
+    char* end;
+    long int n = strtol(text, &end, 10);
+    if (text == end) {
+        error("%s is not a valid bkm", text);
+    }
+    if (*end == '\0') return n;
+    switch (*end) {
+        case 'K':
+        case 'k':
+            return n * 1024;
+        case 'B':
+        case 'b':
+            return n * 512;
+        case 'M':
+        case 'm':
+            return n * 1024 * 1204;
+        default:
+            error("invalid bkm type %c", *end);
+    }
+    
+    /* shouldnt get here anyways */
+    return 0;
+}
+
+mode_t get_mode(const char* next) {
+    char* end = NULL;
+    mode_t mode = (mode_t)strtol(next, &end, 8);
+    if (!end) return 0;
+    while(isspace(*end)) end++;
+    if (*end != '\0' || (unsigned) mode < 010000) {
+        error("invalid file mode: `%s`", next);
+    }
+    return mode;
+}
+
+bool streql(const char* a, const char* b) {
+    int n = 0;
+
+    if (*a != *b) return false;
+    
+    while (true) {
+        if (*(a+n) != *(b+n)) return false;
+        if (*(a+n) == '\0') return true;
+        ++n;
+    }
+}
+
+bool prefix(const char* pre, const char* str) {
+    return strncmp(pre, str, strlen(pre)) == 0;
+}
+
+static char fs_types[5] = {'K','M','G','T','P'};
+void print_file_size(size_t bytes, char buf[5]) {
+    int index, n;
+    float next;
+
+    index = 0;
+    next = bytes;
+    
+    while (true) {
+        if (next < 1000) {
+            break;
+        }
+        
+        if (index == 5) {
+            printf("999P");
+            return;
+        }
+        
+        next /= 1024;
+        index++;
+    }
+    
+    n = snprintf(buf, 4, "%u", (int)(next+.5));
+    
+    if (index > 0) {
+        buf[n] = (fs_types[index - 1]);
+        n++;
+    }
+    
+    buf[n] = '\0';
+}
+
+static char* months[12] = 
+    {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+void print_date_time(time_t mills, char buf[13]) {
+    struct tm* info;
+    int n;
+
+    info = localtime(&mills);
+    n = snprintf(buf, 5, "%s ", months[info->tm_mon]);
+
+    if (info->tm_mday < 10) {
+        buf[n] = ' ';
+        n++;
+    }
+
+    snprintf(buf + n, 13 - n, "%d %02d:%02d ", info->tm_mday, info->tm_hour, info->tm_sec);
+}
+
+void print_file_path(char* path) {
+    if (streql("-", path)) {
+        printf("(standard input)");
+    } else {
+        printf("%s", path);
+    }
+}
diff --git a/lib/convert.h b/lib/convert.h
new file mode 100644
index 0000000..f07614b
--- /dev/null
+++ b/lib/convert.h
@@ -0,0 +1,20 @@
+#ifndef CONVERT_H
+#define CONVERT_H
+
+#include "def.h"
+
+#include <sys/stat.h>
+#include <stddef.h>
+
+long int get_number(const char* text);
+long int get_blkm(const char* text);
+mode_t get_mode(const char* text);
+
+bool streql(const char* a, const char* b);
+bool prefix(const char* pre, const char* str);
+
+void print_file_size(size_t bytes, char buf[5]);
+void print_date_time(time_t mills, char buf[13]);
+void print_file_path(char* path);
+
+#endif
diff --git a/lib/def.h b/lib/def.h
new file mode 100644
index 0000000..33a32a0
--- /dev/null
+++ b/lib/def.h
@@ -0,0 +1,31 @@
+#ifndef COLOR_H
+#define COLOR_H
+
+#include <stdint.h>
+
+#define ANSCII          "\x1b["
+#define NEXT            ";"
+
+#define RESET           "0"
+#define BOLD            "1"
+
+#define NORMAL          "3"
+#define BACKGROUND      "4"
+#define HIGHLIGHT       "9"
+
+#define BLACK           "0"
+#define RED             "1"
+#define GREEN           "2"
+#define YELLOW          "3"
+#define BLUE            "4"
+#define MAGENTA         "5"
+#define TURQUOISE       "6"
+#define WHITE           "7"
+
+#define COLOR           "m"
+
+typedef uint8_t bool;
+#define true 1
+#define false 0
+
+#endif
diff --git a/lib/error.c b/lib/error.c
new file mode 100644
index 0000000..67828c9
--- /dev/null
+++ b/lib/error.c
@@ -0,0 +1,35 @@
+#include "error.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+extern char* cmd;
+
+void error_s(const char *format, ...) {
+    va_list list;
+    va_start(list, format);
+
+    fprintf(stderr, "%s: ", cmd);
+    vfprintf(stderr, format, list);
+    fprintf(stderr, "\n");
+}
+
+void error(const char *format, ...) {
+    va_list list;
+    va_start(list, format);
+
+    fprintf(stderr, "%s: ", cmd);
+    vfprintf(stderr, format, list);
+    fprintf(stderr, "\n");
+    exit(EXIT_FAILURE);
+}
+
+void output(const char *format, ...) {
+    va_list list;
+    va_start(list, format);
+
+    fprintf(stdout, "%s: ", cmd);
+    vfprintf(stdout, format, list);
+    fprintf(stdout, "\n");
+}
diff --git a/lib/error.h b/lib/error.h
new file mode 100644
index 0000000..bae532e
--- /dev/null
+++ b/lib/error.h
@@ -0,0 +1,13 @@
+#ifndef ERROR_H
+#define ERROR_H
+
+__attribute__ ((__format__(printf, 1, 2)))
+void error_s(const char* format, ...);
+
+__attribute__ ((__format__(printf, 1, 2)))
+void error(const char* format, ...);
+
+__attribute__ ((__format__(printf, 1, 2)))
+void output(const char* format, ...);
+
+#endif
diff --git a/lib/file.c b/lib/file.c
new file mode 100644
index 0000000..f89b489
--- /dev/null
+++ b/lib/file.c
@@ -0,0 +1,63 @@
+#include "file.h"
+#include "error.h"
+#include "convert.h"
+
+#include <paths.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+FILE* get_file_s(const char* path, const char* type) {
+    struct stat s;
+    FILE* file;
+
+    if (streql("-", path) && type[0] == 'r') {
+        clearerr(stdin);
+        fflush(stdin);
+        return stdin;
+    }
+    
+    if (lstat(path, &s) < 0) {
+        if (type[0] != 'r') goto read;
+        error_s("failed to read %s: %s", path, strerror(errno));
+        return NULL;
+    }
+    
+    if (S_ISDIR(s.st_mode)) {
+        error_s("%s is a directory", path);
+        return NULL;
+    }
+
+read:
+    
+    file = fopen(path, type);
+    
+    if (file == NULL) {
+        error_s("failed to %s file %s: %s", type[0] == 'r' ? "read" : "write", path, strerror(errno));
+    }
+    
+    return file;
+}
+
+FILE* get_file(const char* path, const char* type) {
+    FILE* file = get_file_s(path, type);
+    if (file == NULL) exit(EXIT_FAILURE);
+    return file;
+}
+
+int get_tty (void) {
+    int fd = open(_PATH_TTY, O_RDONLY);
+    if (fd < 0) error("failed to get tty: %s", strerror(errno));
+    return fd;
+}
+
+FILE* get_tty_stream(char* type) {
+    int fd = get_tty();
+    FILE* file = fdopen(fd, type);
+    if (file == NULL) {
+        error("failed to open tty stream: %s", strerror(errno));
+    }
+    return file;
+}
diff --git a/lib/file.h b/lib/file.h
new file mode 100644
index 0000000..0bb5939
--- /dev/null
+++ b/lib/file.h
@@ -0,0 +1,14 @@
+#ifndef FILE_H
+#define FILE_H
+
+#include <stdio.h>
+
+FILE* get_file_s(const char* path, const char* type);
+
+FILE* get_file(const char* path, const char* type);
+
+int get_tty(void);
+
+FILE* get_tty_stream(char* type);
+
+#endif
diff --git a/lib/lslib.h b/lib/lslib.h
new file mode 100644
index 0000000..dfa1202
--- /dev/null
+++ b/lib/lslib.h
@@ -0,0 +1,16 @@
+#ifndef SHARED_H
+#define SHARED_H
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include "args.h"
+#include "buffer.h"
+#include "def.h"
+#include "convert.h"
+#include "error.h"
+#include "file.h"
+#include "regex.h"
+#include "stack.h"
+
+#endif
diff --git a/src/util/regex.c b/lib/regex.c
similarity index 100%
rename from src/util/regex.c
rename to lib/regex.c
diff --git a/src/util/regex.h b/lib/regex.h
similarity index 95%
rename from src/util/regex.h
rename to lib/regex.h
index 69facc6..d4c61b6 100644
--- a/src/util/regex.h
+++ b/lib/regex.h
@@ -36,16 +36,9 @@
 #define RE_DOT_MATCHES_NEWLINE 1
 #endif
 
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-
 /* Typedef'd pointer to get abstract datatype. */
 typedef struct regex_t* re_t;
 
-
 /* Compile regex string pattern to a regex_t-array. */
 re_t re_compile(const char* pattern);
 
@@ -58,8 +51,4 @@ int re_matchp(re_t pattern, const char* text, int* matchlength);
 int re_match(const char* pattern, const char* text, int* matchlength);
 
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif /* ifndef _TINY_REGEX_C */
diff --git a/src/util/stack.c b/lib/stack.c
similarity index 100%
rename from src/util/stack.c
rename to lib/stack.c
diff --git a/src/util/stack.h b/lib/stack.h
similarity index 95%
rename from src/util/stack.h
rename to lib/stack.h
index 8d6fc80..38fb185 100644
--- a/src/util/stack.h
+++ b/lib/stack.h
@@ -1,7 +1,7 @@
 #ifndef STACK_H
 #define STACK_H
 
-#include "shared.h"
+#include "def.h"
 
 #include <stddef.h>
 
diff --git a/src/command.h b/src/command.h
index cca2877..87cc749 100644
--- a/src/command.h
+++ b/src/command.h
@@ -1,32 +1,17 @@
 #ifndef COMMAND_H
 #define COMMAND_H
 
-#include "util/shared.h"
-#include "util/stack.h"
-#include "util/regex.h"
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-
 #define ARGUMENTS int argc, char** argv
 #define NEXT_ARGS argc - 1, &argv[1]
 #define COMMAND(name) int name (ARGUMENTS) 
-#define COMMAND_EMPTY(name) int name (void)
 
 COMMAND(dd);
 COMMAND(cat);
 COMMAND(yes);
 COMMAND(echo);
 COMMAND(print);
-COMMAND_EMPTY(groups);
-COMMAND_EMPTY(user_id);
+COMMAND(groups);
+COMMAND(user_id);
 COMMAND(ls);
 COMMAND(tail);
 COMMAND(head);
diff --git a/src/main.c b/src/main.c
index 1977e17..ad64b10 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,12 +1,8 @@
-#include "util/shared.h"
 #include "command.h"
+#include "lslib.h"
 
-#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/types.h>
 
 char* cmd;
 
@@ -51,9 +47,9 @@ int main (ARGUMENTS) {
     } else if (streql(cmd, "printf")) {
         return print(NEXT_ARGS);
     } else if (streql(cmd, "groups")) {
-        return groups();
+        return groups(NEXT_ARGS);
     } else if (streql(cmd, "id")) {
-        return user_id();
+        return user_id(NEXT_ARGS);
     } else if (streql(cmd, "ls") || streql(cmd, "dir")) {
         return ls(NEXT_ARGS);
     } else if (streql(cmd, "lsd")) {
diff --git a/src/util/shared.c b/src/util/shared.c
deleted file mode 100644
index 2e0c98a..0000000
--- a/src/util/shared.c
+++ /dev/null
@@ -1,372 +0,0 @@
-#include "shared.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <sys/stat.h>
-#include <paths.h>
-
-extern char* cmd;
-
-void error_s(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stderr, "%s: ", cmd);
-    vfprintf(stderr, format, list);
-    fprintf(stderr, "\n");
-}
-
-void error(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stderr, "%s: ", cmd);
-    vfprintf(stderr, format, list);
-    fprintf(stderr, "\n");
-    exit(EXIT_FAILURE);
-}
-
-void output(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stdout, "%s: ", cmd);
-    vfprintf(stdout, format, list);
-    fprintf(stdout, "\n");
-}
-
-FILE* get_file_s(const char* path, const char* type) {
-    struct stat s;
-    FILE* file;
-
-    if (streql("-", path) && type[0] == 'r') {
-        clearerr(stdin);
-        fflush(stdin);
-        return stdin;
-    }
-    
-    if (lstat(path, &s) < 0) {
-        if (type[0] != 'r') goto read;
-        error_s("failed to read %s: %s", path, strerror(errno));
-        return NULL;
-    }
-    
-    if (S_ISDIR(s.st_mode)) {
-        error_s("%s is a directory", path);
-        return NULL;
-    }
-
-read:
-    
-    file = fopen(path, type);
-    
-    if (file == NULL) {
-        error_s("failed to %s file %s: %s", type[0] == 'r' ? "read" : "write", path, strerror(errno));
-    }
-    
-    return file;
-}
-
-FILE* get_file(const char* path, const char* type) {
-    FILE* file = get_file_s(path, type);
-    if (file == NULL) exit(EXIT_FAILURE);
-    return file;
-}
-
-long int get_number(const char* text) {
-    char* end;
-    long int n = strtol(text, &end, 10);
-    if (text == end) {
-        error("%s is not a valid number", text);
-    }
-    return n;
-}
-
-long int get_blkm(const char* text) {
-    char* end;
-    long int n = strtol(text, &end, 10);
-    if (text == end) {
-        error("%s is not a valid bkm", text);
-    }
-    if (*end == '\0') return n;
-    switch (*end) {
-        case 'K':
-        case 'k':
-            return n * 1024;
-        case 'B':
-        case 'b':
-            return n * 512;
-        case 'M':
-        case 'm':
-            return n * 1024 * 1204;
-        default:
-            error("invalid bkm type %c", *end);
-    }
-    
-    /* shouldnt get here anyways */
-    return 0;
-}
-
-mode_t get_mode(const char* next) {
-    char* end = NULL;
-    mode_t mode = (mode_t)strtol(next, &end, 8);
-    if (!end) return 0;
-    while(isspace(*end)) end++;
-    if (*end != '\0' || (unsigned) mode < 010000) {
-        error("invalid file mode: `%s`", next);
-    }
-    return mode;
-}
-
-bool streql(const char* a, const char* b) {
-    int n = 0;
-
-    if (*a != *b) return false;
-    
-    while (true) {
-        if (*(a+n) != *(b+n)) return false;
-        if (*(a+n) == '\0') return true;
-        ++n;
-    }
-}
-
-bool prefix(const char* pre, const char* str) {
-    return strncmp(pre, str, strlen(pre)) == 0;
-}
-
-static char fs_types[5] = {'K','M','G','T','P'};
-void print_file_size(size_t bytes, char buf[5]) {
-    int index, n;
-    float next;
-
-    index = 0;
-    next = bytes;
-    
-    while (true) {
-        if (next < 1000) {
-            break;
-        }
-        
-        if (index == 5) {
-            printf("999P");
-            return;
-        }
-        
-        next /= 1024;
-        index++;
-    }
-    
-    n = snprintf(buf, 4, "%u", (int)(next+.5));
-    
-    if (index > 0) {
-        buf[n] = (fs_types[index - 1]);
-        n++;
-    }
-    
-    buf[n] = '\0';
-}
-
-static char* months[12] = 
-    {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
-void print_date_time(time_t mills, char buf[13]) {
-    struct tm* info;
-    int n;
-
-    info = localtime(&mills);
-    n = snprintf(buf, 5, "%s ", months[info->tm_mon]);
-
-    if (info->tm_mday < 10) {
-        buf[n] = ' ';
-        n++;
-    }
-
-    snprintf(buf + n, 13 - n, "%d %02d:%02d ", info->tm_mday, info->tm_hour, info->tm_sec);
-}
-
-void print_file_path(char* path) {
-    if (streql("-", path)) {
-        printf("(standard input)");
-    } else {
-        printf("%s", path);
-    }
-}
-
-#ifndef MAJOR
-#define MAJOR 0
-#endif
-
-#ifndef MINOR
-#define MINOR 0
-#endif
-
-#ifndef PATCH
-#define PATCH 0
-#endif
-
-void check_arg (char* arg) {
-    if (arg == NULL) {
-        error("expected another argument after option");
-    }
-}
-
-void global_help(void (*help)(void)) {
-    printf("LazySphere v%d.%d.%d multi-call binary.\n\n", MAJOR, MINOR, PATCH);
-    help();
-    exit(EXIT_SUCCESS);
-}
-
-void parse_help(int argc, char** argv, void (*help)(void)) {
-    int i;
-
-    if (argc < 1) return;
-
-    for (i = 0; i < argc; i++) {
-        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
-        if (help != NULL && streql("--help", argv[i])) global_help(help);
-    }
-}
-
-int parse_args(int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*)) {
-    int start, i, current;
-    char* next_arg;
-
-    if (argc < 1) return 0;
-
-    start = 0;
-    for (i = 0; i < argc; i++) {
-        
-        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
-        if (help != NULL && streql("--help", argv[i])) global_help(help);
-
-        if (i + 1 == argc) {
-            next_arg = NULL;
-        } else {
-            next_arg = argv[i+1];
-        }
-
-        current = i;
-
-        if (prefix("--", argv[i])) {
-            int r;
-
-            if (long_arg == NULL) {
-                goto exit;
-            }
-            
-            r = long_arg(argv[current], next_arg);
-            
-            if (r == ARG_USED) {
-                i++;
-                start++;
-            } else if (r == ARG_IGNORE) {
-                goto exit;
-            } else if (r == ARG_INVALID) {
-                error("invalid argument %s", argv[current]);
-            
-            }
-        } else {
-            size_t j;
-            int r;
-
-            if (short_arg == NULL) {
-                goto exit;
-            }
-
-            for (j = 1; j < strlen(argv[current]); j++) {
-                
-                r = short_arg(argv[current][j], next_arg);
-                
-                if (r == ARG_USED) {
-                    i++;
-                    start++;
-                } else if (r == ARG_IGNORE) {
-                    goto exit;
-                } else if (r == ARG_INVALID) {
-                    error("invalid argument -%c", argv[current][j]);
-                }
-            }
-        }
-
-        start++;
-    }
-
-exit:
-
-    return start;
-}
-
-int get_tty (void) {
-    int fd = open(_PATH_TTY, O_RDONLY);
-    if (fd < 0) error("failed to get tty: %s", strerror(errno));
-    return fd;
-}
-
-FILE* get_tty_stream(char* type) {
-    int fd = get_tty();
-    FILE* file = fdopen(fd, type);
-    if (file == NULL) {
-        error("failed to open tty stream: %s", strerror(errno));
-    }
-    return file;
-}
-
-static int push_path_buffer_b(char* buf, int* index, const char* string) {
-    int save, string_len;
-
-    save = *index;
-    if (*index > 1 || (*index == 1 && buf[0] != '/')) {
-        buf[(*index)++] = '/';
-    }
-
-    string_len = strlen(string);
-    memcpy(buf + *index, string, string_len + 1);
-    
-    *index += string_len;
-    
-    return save;
-}
-
-static void pop_path_buffer_b(char* buf, int* index, int i) {
-    *index = i;
-    buf[*index] = '\0';
-}
-
-static char path_buffer[PATH_MAX + 1];
-static int path_buffer_index = 0;
-
-char* get_path_buffer(void) {
-    return path_buffer;
-}
-
-int push_path_buffer(const char* string) {
-    return push_path_buffer_b(path_buffer, &path_buffer_index, string);
-}
-
-void pop_path_buffer(int i) {
-    pop_path_buffer_b(path_buffer, &path_buffer_index, i);
-}
-
-static char path_buffer_2[PATH_MAX + 1];
-static int path_buffer_index_2 = 0;
-
-char* get_path_buffer_2(void) {
-    return path_buffer_2;
-}
-
-int push_path_buffer_2(const char* string) {
-    return push_path_buffer_b(path_buffer_2, &path_buffer_index_2, string);
-}
-
-void pop_path_buffer_2(int i) {
-    pop_path_buffer_b(path_buffer_2, &path_buffer_index_2, i);
-}
-
-bool is_dot_dir(const char* path) {
-    return streql(path, ".") || streql(path, "..");
-}
diff --git a/src/util/shared.h b/src/util/shared.h
deleted file mode 100644
index a3e6a56..0000000
--- a/src/util/shared.h
+++ /dev/null
@@ -1,86 +0,0 @@
-#ifndef SHARED_H
-#define SHARED_H
-
-#include <stdint.h>
-#include <stdio.h>
-#include <time.h>
-#include <fcntl.h>
-
-#define ANSCII          "\x1b["
-#define NEXT            ";"
-
-#define RESET           "0"
-#define BOLD            "1"
-
-#define NORMAL          "3"
-#define BACKGROUND      "4"
-#define HIGHLIGHT       "9"
-
-#define BLACK           "0"
-#define RED             "1"
-#define GREEN           "2"
-#define YELLOW          "3"
-#define BLUE            "4"
-#define MAGENTA         "5"
-#define TURQUOISE       "6"
-#define WHITE           "7"
-
-#define COLOR           "m"
-
-typedef uint8_t bool;
-#define true 1
-#define false 0
-
-enum When {
-    YES,
-    NO,
-    AUTO
-};
-
-__attribute__ ((__format__(printf, 1, 2)))
-void error_s(const char* format, ...);
-
-__attribute__ ((__format__(printf, 1, 2)))
-void error(const char* format, ...);
-
-__attribute__ ((__format__(printf, 1, 2)))
-void output(const char* format, ...);
-
-FILE* get_file_s(const char* path, const char* type);
-FILE* get_file(const char* path, const char* type);
-long int get_number(const char* text);
-long int get_blkm(const char* text);
-mode_t get_mode(const char* next);
-
-bool streql(const char* a, const char* b);
-bool prefix(const char* pre, const char* str);
-
-void print_file_size(size_t bytes, char buf[5]);
-void print_date_time(time_t mills, char buf[13]);
-void print_file_path(char* path);
-
-#define UNUSED(x) (void)(x)
-#define ARG_UNUSED  0
-#define ARG_USED    1
-#define ARG_IGNORE  2
-#define ARG_INVALID 3
-
-void check_arg (char* arg);
-void global_help(void (*help)(void));
-void parse_help (int argc, char** argv, void (*help)(void));
-int parse_args (int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*));
-
-int get_tty(void);
-FILE* get_tty_stream(char* type);
-
-char* get_path_buffer(void);
-int push_path_buffer(const char* string);
-void pop_path_buffer(int i);
-
-char* get_path_buffer_2(void);
-int push_path_buffer_2(const char* string);
-void pop_path_buffer_2(int i);
-
-bool is_dot_dir(const char* path);
-
-#endif