diff --git a/TODO b/TODO
index 6ccbf8c..7ee3feb 100644
--- a/TODO
+++ b/TODO
@@ -1,7 +1,6 @@
 With "micro-" prefix
 
 *Todo:
-*du - b
 tail
 expr
 uniq
diff --git a/src/coreutils/basename/basename.c b/src/coreutils/basename/basename.c
index 80387b8..ecb7958 100644
--- a/src/coreutils/basename/basename.c
+++ b/src/coreutils/basename/basename.c
@@ -8,7 +8,7 @@ int main(int argc, char **argv) {
 
 	int opt;
 	while ((opt = getopt(argc, argv, "")) != -1) {
-		fprintf(stderr, "basename [var1] [suffix]\n");
+		fprintf(stderr, "basename [text] [suffix]\n");
 		return 1;
 	}
 
diff --git a/src/coreutils/cat/cat.c b/src/coreutils/cat/cat.c
index 33da0b5..2c58ae4 100644
--- a/src/coreutils/cat/cat.c
+++ b/src/coreutils/cat/cat.c
@@ -33,11 +33,8 @@ int cat(const char *path) {
 int main(int argc, char **argv) {
 	int opt;
 	while ((opt = getopt(argc, argv, "")) != -1) {
-		switch (opt) {
-			default:
-				printf("cat [file1 file2...]\n");
-				return 0;
-		}
+		printf("cat [file1 file2...]\n");
+		return 0;
 	}
 
 	argv += optind;
diff --git a/src/coreutils/chgrp/chgrp.c b/src/coreutils/chgrp/chgrp.c
index 1f23e59..674321f 100644
--- a/src/coreutils/chgrp/chgrp.c
+++ b/src/coreutils/chgrp/chgrp.c
@@ -9,10 +9,10 @@
 #include "get_stat.h"
 #include "recurse.h"
 
-unsigned int r_flag;
+char r_flag;
 char *f_flag = "chgrp";
-unsigned int H_flag;
-unsigned int v_flag;
+char H_flag;
+char v_flag;
 
 int change(const char *path, void *p) {
 	struct group *grp = (struct group *)p;
@@ -56,7 +56,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("chgrp [group] [file1 file2...]\n\t[-H Symbolic link]\n\t[-R Recursive] [-f Silent]\n\t[-v Verbose]\n");
+				printf("chgrp [RfHv] [group] [file1 file2...]\n\t-H Symbolic link\n\t-R Recursive\n\t-f Silent\n\t-v Verbose\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/chmod/chmod.c b/src/coreutils/chmod/chmod.c
index 81b14b7..7bb0c1c 100644
--- a/src/coreutils/chmod/chmod.c
+++ b/src/coreutils/chmod/chmod.c
@@ -9,10 +9,10 @@
 #include "parse_mode.h"
 #include "recurse.h"
 
-unsigned int r_flag;
+char r_flag;
 char *f_flag = "chmod";
-unsigned int H_flag;
-unsigned int v_flag;
+char H_flag;
+char v_flag;
 
 int change(const char *file, void *p) {
 	char *mode_arg = (char *)p;
@@ -70,7 +70,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("chmod [ugoa]{+|-}[rwxXst] / [0 - 777] [file1 file2...]\n\t[-H Symbolic link]\n\t[-R Recursive] [-f Silent]\n\t[-v Verbose]\n");
+				printf("chmod [RfHv] [ugoa]{+|-}[rwxXst] / [0 - 777] [file1 file2...]\n\t-H Symbolic link\n\t-R Recursive\n\t-f Silent\n\t-v Verbose\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/chown/chown.c b/src/coreutils/chown/chown.c
index 444b8aa..b7c8d33 100644
--- a/src/coreutils/chown/chown.c
+++ b/src/coreutils/chown/chown.c
@@ -11,10 +11,10 @@
 #include "recurse.h"
 #include "unused.h"
 
-unsigned int r_flag;
+char r_flag;
 char *f_flag = "chown";
-unsigned int H_flag;
-unsigned int v_flag;
+char H_flag;
+char v_flag;
 int (*chown_func)(const char *pathname, uid_t owner, gid_t group);
 long gid;
 long uid;
@@ -38,8 +38,8 @@ int change(const char *path, void *p) {
 void get_owner(const char *arg) {
 	char *group = strchr(arg, ':');
 
-	unsigned int g_flag = 1;
-	unsigned int u_flag = 1;
+	char g_flag = 1;
+	char u_flag = 1;
 
 	if (group == arg)
 		u_flag = 0;
@@ -99,7 +99,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("chown USER[:[GRP]] [file1 file2...]\n\t[-H Symbolic link]\n\t[-R Recursive] [-f Silent]\n\t[-v Verbose]\n");
+				printf("chown [RfHf] USER[:[GRP]] [file1 file2...]\n\t-H Symbolic link\n\t-R Recursive\n\t-f Silent\n\t-v Verbose\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/cmp/cmp.c b/src/coreutils/cmp/cmp.c
index 9af5fe6..e4c3850 100644
--- a/src/coreutils/cmp/cmp.c
+++ b/src/coreutils/cmp/cmp.c
@@ -3,7 +3,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
-unsigned int s_flag;
+char s_flag;
 
 int compare(FILE *fp1, FILE *fp2) {
 	if (fp1 == fp2)
@@ -55,16 +55,16 @@ FILE *file_open(const char *path) {
 }
 
 int main(int argc, char **argv) {
+
 	int opt;
-	while ((opt = getopt(argc, argv, "fs")) != -1) {
+	while ((opt = getopt(argc, argv, "s")) != -1) {
 		switch (opt) {
 			case 's':
-			case 'f':
 				s_flag = 1;
 				break;
 
 			default:
-				printf("cmp file1 file2 [skip1] [skip2]\n\t[-f/-s Silent]\n");
+				printf("cmp [s] [file1] [file2] [skip1] [skip2]\n\t-s Silent\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/cp/cp.c b/src/coreutils/cp/cp.c
index d36fce6..e41db0a 100644
--- a/src/coreutils/cp/cp.c
+++ b/src/coreutils/cp/cp.c
@@ -11,7 +11,7 @@
 #include "get_stat.h"
 
 char *f_flag = "cp";
-unsigned int r_flag;
+char r_flag;
 
 int write_buffer(int mode, int ifd, int ofd, const char *dst) {
 	off_t len = lseek(ifd, 0, SEEK_END);
@@ -173,7 +173,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("cp [src1 src2...] [dst]\n\t[-f Silent] [-r Recursive]\n");
+				printf("cp [rf] [src1 src2...] [dst]\n\t-f Silent\n\t-r Recursive\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/date/date.c b/src/coreutils/date/date.c
index 8f74a20..faf4a31 100644
--- a/src/coreutils/date/date.c
+++ b/src/coreutils/date/date.c
@@ -79,7 +79,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("date [+\"fmt\"]\n\t[-s DATE Set new date]\n\t[-d DATE Print new date]\n\t[-u Work in UTC]\n\t[-r FILE Display last modification time of FILE]\n");
+				printf("date [rsdu] [+\"fmt\"]\n\t-s DATE Set new date\n\t-d DATE Print new date\n\t-u Work in UTC\n\t-r FILE Display last modification time of FILE\n");
 				printf("\nFormats:\n");
 				for (size_t i = 0; i < sizeof(fmts) / sizeof(char *); i++)
 					printf("\t%s\n", fmts[i]);
diff --git a/src/coreutils/dd/dd.c b/src/coreutils/dd/dd.c
index 12dfd2b..a0dcf23 100644
--- a/src/coreutils/dd/dd.c
+++ b/src/coreutils/dd/dd.c
@@ -108,7 +108,7 @@ int main(int argc, char **argv) {
 
 		char *val = strchr(arg, '=');
 		if (val == NULL) {
-			printf("dd\n\t[if=InputFile] [of=OutputFile]\n\t[bs=obs and obs]\n\t[ibs=Input buffer size]\n\t[obs=Output buffer size]\n\t[seek=Skip N obs-sized output blocks]\n\t[skip=Skip N ibs-sized output blocks]\n\t[count=Copy only N input blocks]\n\nN and BYTES may be followed by the following multiplicative\nsuffixes: w=2, b=512, k=1000, K=1024, m=1000*1000,\nM=1024*1024, g=1000*1000*1000, G=1024*1024*1024\n");
+			printf("dd\n\tif=InputFile\n\tof=OutputFile\n\tbs=obs and obs\n\tibs=Input buffer size\n\tobs=Output buffer size\n\tseek=Skip N obs-sized output blocks\n\tskip=Skip N ibs-sized output blocks\n\tcount=Copy only N input blocks\n\nN and BYTES may be followed by the following multiplicative\nsuffixes: w=2, b=512, k=1000, K=1024, m=1000*1000,\nM=1024*1024, g=1000*1000*1000, G=1024*1024*1024\n");
 			return 1;
 		}
 
diff --git a/src/coreutils/df/df.c b/src/coreutils/df/df.c
index cfef368..e9e7c4c 100644
--- a/src/coreutils/df/df.c
+++ b/src/coreutils/df/df.c
@@ -9,8 +9,8 @@
 #include "human.h"
 #include "config.h"
 
-unsigned int a_flag;
-unsigned int h_flag;
+char a_flag;
+char h_flag;
 off_t block = 1024;
 
 void print_human(const char *src, const off_t total, const off_t used, const off_t avail, const off_t capacity, const char *dst) {
@@ -44,7 +44,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("df\n\t[-h Human readable (1024)] [-a Show all]\n\t[-H Human readable (1000)]\n");
+				printf("df [rHa]\n\t-h Human readable (1024)\n\t-a Show all\n\t-H Human readable (1000)\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/du/du.c b/src/coreutils/du/du.c
index b5715f3..187e006 100644
--- a/src/coreutils/du/du.c
+++ b/src/coreutils/du/du.c
@@ -9,10 +9,9 @@
 #include "make_path.h"
 #include "human.h"
 
-unsigned int h_flag;
-unsigned int s_flag;
-unsigned int c_flag;
-unsigned int b_flag;
+char h_flag;
+char s_flag;
+char c_flag;
 off_t total;
 
 void print(off_t size, const char *filename) {
@@ -66,7 +65,6 @@ off_t du(const char *path, int recurs_flag) {
 	/* Get file size */
 	else {
 		sum = sb.st_blocks * 512;
-
 		if (c_flag)
 			total += sum;
 
@@ -80,7 +78,7 @@ off_t du(const char *path, int recurs_flag) {
 int main(int argc, char **argv) {
 
 	int opt;
-	while ((opt = getopt(argc, argv, "hsbc")) != -1) {
+	while ((opt = getopt(argc, argv, "hsc")) != -1) {
 		switch (opt) {
 			case 'h':
 				h_flag = 1;
@@ -95,7 +93,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("du [src1 src2...]\n\t[-h Sizes in human readable format]\n\t[-s Display only a total for each argument]\n\t[-c produce a grand total]\n");
+				printf("du [hsc] [src1 src2...]\n\t-h Sizes in human readable format\n\t-s Display only a total for each argument\n\t-c produce a grand total\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/head/head.c b/src/coreutils/head/head.c
index 8fbeea1..9c7d90a 100644
--- a/src/coreutils/head/head.c
+++ b/src/coreutils/head/head.c
@@ -6,8 +6,8 @@
 #include <stdlib.h>
 #include "config.h"
 
-unsigned int v_flag;
-unsigned int c_flag;
+char v_flag;
+char c_flag;
 
 long parse_long(const char *str) {
 	char *ptr;
@@ -60,7 +60,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("head [file1 file2...]\n\t[-n Print N lines] [-c Print N bytes]\n\t[-v Print headers]\n");
+				printf("head [ncv] [file1 file2...]\n\t-n Print N lines\n\t-c Print N bytes\n\t-v Print headers\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/id/id.c b/src/coreutils/id/id.c
index 89c8bf1..77a9e70 100644
--- a/src/coreutils/id/id.c
+++ b/src/coreutils/id/id.c
@@ -9,11 +9,11 @@
 #include <limits.h>
 #include <sys/types.h>
 
-unsigned int g_flag;
-unsigned int G_flag;
-unsigned int n_flag;
-unsigned int r_flag;
-unsigned int u_flag;
+char g_flag;
+char G_flag;
+char n_flag;
+char r_flag;
+char u_flag;
 
 int print_groups(const struct passwd *pwd, const char *fmt, const int flag) {
 	int ngroups = 0;
@@ -77,7 +77,7 @@ int def_ids(uid_t uid, struct passwd *pwd) {
 }
 
 void usage(int sig) {
-	printf("id [user]\n\t[-u User ID] [-g Group ID]\n\t[-G Supplementary group IDs]\n\t[-n Print names instead of numbers]\n\t[-r Print real ID instead of effective ID]\n");
+	printf("id [gGurn] [user]\n\t-u User ID\n\t-g Group ID\n\t-G Supplementary group IDs\n\t-n Print names instead of numbers\n\t-r Print real ID instead of effective ID\n");
 	exit(sig);
 }
 
diff --git a/src/coreutils/ln/ln.c b/src/coreutils/ln/ln.c
index 154bfc5..48f8be6 100644
--- a/src/coreutils/ln/ln.c
+++ b/src/coreutils/ln/ln.c
@@ -4,9 +4,8 @@
 #include <unistd.h>
 #include "make_path.h"
 
-/* Symbolic */
-unsigned int s_flag;
-unsigned int f_flag;
+char s_flag;
+char f_flag;
 
 int ln(const char *src, const char *dst) {
 	if (f_flag)
@@ -32,7 +31,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("ln [src] [dst]\n\t[-f Force] [-s Symbolic]\n");
+				printf("ln [sf] [src] [dst]\n\t-f Force\n\t-s Symbolic\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/ls/ls.c b/src/coreutils/ls/ls.c
index 1f7c9e4..7179278 100644
--- a/src/coreutils/ls/ls.c
+++ b/src/coreutils/ls/ls.c
@@ -16,18 +16,18 @@
 #include "config.h"
 #include "human.h"
 
-unsigned int O_flag;
-unsigned int a_flag;
-unsigned int l_flag;
-unsigned int F_flag;
-unsigned int c_flag;
-unsigned int R_flag;
-unsigned int d_flag;
-unsigned int L_flag;
-unsigned int h_flag;
-unsigned int s_flag;
-unsigned int i_flag;
-unsigned int p_flag;
+char O_flag;
+char a_flag;
+char l_flag;
+char F_flag;
+char c_flag;
+char R_flag;
+char d_flag;
+char L_flag;
+char h_flag;
+char s_flag;
+char i_flag;
+char p_flag;
 
 int sortd(const void *p1, const void *p2);
 int (*sorter)(const void *p1, const void *p2) = sortd;
@@ -412,7 +412,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("ls [dir1 dir2...]\n\t[-a Show hidden files]\n\t[-l Use a long listing format]\n\t[-F Append indicator to names]\n\t[-c Color mode] [-R Recursive]\n\t[-1 One column] [-d Print only dir names]\n\t[-L Follow symlinks]\n\t[-h Sizes in human readable format]\n\t[-i Listen inodes] [-t Sort by mtime]\n\t[-S Sort by size] [-s Print file size]\n");
+				printf("ls [1alFcRdLhistS] [dir1 file2...]\n\t-a Show hidden files\n\t-l Use a long listing format\n\t-F Append indicator to names\n\t-c Color mode\n\t-R Recursive\n\t-1 One column\n\t-d Print only dir names\n\t-L Follow symlinks\n\t-h Sizes in human readable format\n\t-i Listen inodes\n\t-t Sort by mtime\n\t-S Sort by size\n\t-s Print file size\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/mkdir/mkdir.c b/src/coreutils/mkdir/mkdir.c
index 25d200d..2d34675 100644
--- a/src/coreutils/mkdir/mkdir.c
+++ b/src/coreutils/mkdir/mkdir.c
@@ -7,8 +7,8 @@
 #include <errno.h>
 #include "parse_mode.h"
 
-unsigned int v_flag;
-unsigned int p_flag;
+char v_flag;
+char p_flag;
 mode_t mode = 0777;
 
 int do_mkdir(const char *path) {
@@ -21,7 +21,7 @@ int do_mkdir(const char *path) {
 	}
 
 	else if (v_flag)
-		printf("mkdir: %s created with mode: %d\n", path, mode);
+		printf("mkdir: %s created with mode %d\n", path, mode);
 
 	return 0;
 }
@@ -61,7 +61,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mkdir [dst1 dst2...]\n\t[-p Make parent dir] [-m MODE Mode]\n");
+				printf("mkdir [pmv] [dst1 dst2...]\n\t-p Make parent dir\n\t-m MODE Mode\n\t-v Verbose\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/mkfifo/mkfifo.c b/src/coreutils/mkfifo/mkfifo.c
index 3f858d7..d351831 100644
--- a/src/coreutils/mkfifo/mkfifo.c
+++ b/src/coreutils/mkfifo/mkfifo.c
@@ -33,7 +33,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mkfifo [file1 file2...]\n\t[-m Mode]\n");
+				printf("mkfifo [m] [file1 file2...]\n\t-m MODE\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/mknod/mknod.c b/src/coreutils/mknod/mknod.c
index 5fa1ee5..5bfc9bd 100644
--- a/src/coreutils/mknod/mknod.c
+++ b/src/coreutils/mknod/mknod.c
@@ -38,7 +38,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mknod [-m MODE] [NAME] [TYPE] [MAJOR MINOR]\n");
+				printf("mknod [m] [NAME] [TYPE] [MAJOR MINOR]\n\t-m MODE\n\n");
 				printf("Types:\n\tb - block device\n\tc or u - character device\n\tp - named pipe/fifo (MAJOR MINOR must be omitted)\n\ts - socket\n");
 				return 0;
 		}
diff --git a/src/coreutils/mktemp/mktemp.c b/src/coreutils/mktemp/mktemp.c
index 2f52f31..b285da3 100644
--- a/src/coreutils/mktemp/mktemp.c
+++ b/src/coreutils/mktemp/mktemp.c
@@ -60,7 +60,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mktemp [file]\n\t[-d Dir] [-p Base dir]\n");
+				printf("mktemp [dp] [file]\n\t-d Dir\n\t-p Base dir\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/mv/mv.c b/src/coreutils/mv/mv.c
index 946d51d..7cf88b0 100644
--- a/src/coreutils/mv/mv.c
+++ b/src/coreutils/mv/mv.c
@@ -38,7 +38,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mv [src1 src2...] [dst]\n\t[-f Force]\n");
+				printf("mv [f] [src1 src2...] [dst]\n\t-f Force\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/nice/nice.c b/src/coreutils/nice/nice.c
index 30fec39..fdb1988 100644
--- a/src/coreutils/nice/nice.c
+++ b/src/coreutils/nice/nice.c
@@ -17,7 +17,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("nice [cmd] [arg1] [arg2]\n\t[-n N Add N to the niceness]\n");
+				printf("nice [n] [cmd] [arg1] [arg2]\n\t-n N Add N to the niceness\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/nl/nl.c b/src/coreutils/nl/nl.c
index 68df9b9..ebd0e62 100644
--- a/src/coreutils/nl/nl.c
+++ b/src/coreutils/nl/nl.c
@@ -6,8 +6,8 @@
 #include <unistd.h>
 #include "config.h"
 
-unsigned int w_flag = 4;
-unsigned int lines = 1;
+char w_flag = 4;
+char lines = 1;
 
 int nl(const char *path) {
 	FILE *fp = stdin;
@@ -52,7 +52,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("nl [file1 file2...]\n\t[-w N Width of line numbers]\n\t[-v N Start from N]\n");
+				printf("nl [wv] [file1 file2...]\n\t-w N Width of line numbers\n\t-v N Start from N\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/renice/renice.c b/src/coreutils/renice/renice.c
index c3349d0..8cc8441 100644
--- a/src/coreutils/renice/renice.c
+++ b/src/coreutils/renice/renice.c
@@ -41,7 +41,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("renice [id1 id2...]\n\t[-n N Add N to the niceness]\n\t[-g Process group ids]\n\t[-u Process user names]\n\t[-p Process ids]\n");
+				printf("renice [ngup] [id1 id2...]\n\t-n N Add N to the niceness\n\t-g Process group ids\n\t-u Process user names\n\t-p Process ids\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/rm/rm.c b/src/coreutils/rm/rm.c
index 944d8d8..2a52efc 100644
--- a/src/coreutils/rm/rm.c
+++ b/src/coreutils/rm/rm.c
@@ -10,7 +10,7 @@
 #include "unused.h"
 
 char *f_flag = "rm";
-unsigned int r_flag;
+char r_flag;
 
 int rm(const char *path, void *p) {
 	UNUSED(p);
@@ -49,7 +49,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("rm [file1 file2...]\n\t[-f Force] [-r Recursive]\n");
+				printf("rm [rf] [file1 file2...]\n\t-f Force\n\t-r Recursive\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/shred/shred.c b/src/coreutils/shred/shred.c
index ecbd0ca..63a2659 100644
--- a/src/coreutils/shred/shred.c
+++ b/src/coreutils/shred/shred.c
@@ -8,10 +8,10 @@
 #include <sys/stat.h>
 #include "config.h"
 
-unsigned int f_flag;
-unsigned int u_flag;
-unsigned int z_flag;
-unsigned int n_loops = 3;
+char f_flag;
+char u_flag;
+char z_flag;
+int n_loops = 3;
 
 int shred(int rand_fd, int fd) {
 	/* Get size */
@@ -25,7 +25,7 @@ int shred(int rand_fd, int fd) {
 		return 1;
 	}
 
-	for (unsigned int n = 0; n < n_loops; n++) {
+	for (char n = 0; n < n_loops; n++) {
 		if (read(rand_fd, buf, size) == 0)
 			fprintf(stderr, "shred: %s", strerror(errno));
 
@@ -65,7 +65,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("shred [file1 file2...]\n\t[-n N Overwrite N times, default 3]\n\t[-z Final overwrite with zeros]\n\t[-u Remove file] [-f Chmod to ensure writability]\n");
+				printf("shred [fuzn] [file1 file2...]\n\t-n N Overwrite N times, default 3\n\t-z Final overwrite with zeros\n\t-u Remove file\n\t-f Chmod to ensure writability\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/split/split.c b/src/coreutils/split/split.c
index 8c37b03..e2d3270 100644
--- a/src/coreutils/split/split.c
+++ b/src/coreutils/split/split.c
@@ -68,7 +68,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("split [file1]\n\t[-l N Split by N lines]\n\t[-a N Use N letters as prefix]\n\t[-b N[k|m] Split by N (kilo|mega)bytes]\n");
+				printf("split [alb] [file1]\n\t-l N Split by N lines\n\t-a N Use N letters as prefix\n\t-b N[k|m] Split by N (kilo|mega)bytes\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/tee/tee.c b/src/coreutils/tee/tee.c
index ab08626..454236f 100644
--- a/src/coreutils/tee/tee.c
+++ b/src/coreutils/tee/tee.c
@@ -22,7 +22,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("tee [file]\n\t[-a Append]\n\t[-i Ignore interrupt signals]\n");
+				printf("tee [ai] [file]\n\t-a Append\n\t-i Ignore interrupt signals\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/time/time.c b/src/coreutils/time/time.c
index 17e07c7..39b87a0 100644
--- a/src/coreutils/time/time.c
+++ b/src/coreutils/time/time.c
@@ -28,8 +28,10 @@ int main(int argc, char **argv) {
 
 	/* Run */
 	pid_t pid;
-	if ((pid = fork()) == 0)
+	if ((pid = fork()) == 0) {
 		execvp(argv[1], argv + 1);
+		exit(1);
+	}
 
 	int status = 0;
 	waitpid(pid, &status, 0);
diff --git a/src/coreutils/touch/touch.c b/src/coreutils/touch/touch.c
index b636f9f..b43a984 100644
--- a/src/coreutils/touch/touch.c
+++ b/src/coreutils/touch/touch.c
@@ -1,4 +1,5 @@
 #include <fcntl.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <utime.h>
 #include <errno.h>
@@ -6,35 +7,140 @@
 #include <string.h>
 #include <time.h>
 
-int touch(const char *path) {
-	int fd = open(path, O_CREAT | O_RDONLY, 0666);
-	if (fd < 0) {
-		fprintf(stderr, "touch: %s\n", strerror(errno));
+char c_flag;
+char m_flag;
+char a_flag;
+
+int setdate(const char *path, const time_t date, char flag) {
+	struct utimbuf new_time;
+
+	if (flag || a_flag)
+		new_time.actime = date;
+
+	if (flag || m_flag)
+		new_time.modtime = date;
+
+	if (utime(path, &new_time) < 0) {
+		fprintf(stderr, "touch: %s: %s\n", path, strerror(errno));
 		return 1;
 	}
 
-	close(fd);
+	return 0;
+}
 
-	struct utimbuf new_time;
-	time_t now = time(NULL);
+int touch(const char *path, const time_t date) {
 
-	new_time.actime = now;
-	new_time.modtime = now;
+	if (!c_flag) {
+		int fd = open(path, O_CREAT | O_RDONLY, 0666);
+		if (fd < 0) {
+			fprintf(stderr, "touch: %s\n", strerror(errno));
+			return 1;
+		}
 
-	if (utime(path, &new_time) < 0)
+		close(fd);
+	}
+
+	/* Update the date to now */
+	if (setdate(path, time(NULL), 1))
+		return 1;
+
+	/* Seting custom values */
+	char flag = 0;
+	if (m_flag == 0 && a_flag == 0)
+		flag = 1;
+
+	if (date != -1 && setdate(path, date, flag))
 		return 1;
 
 	return 0;
 }
 
-int main(const int argc, const char **argv) {
-	if (argc == 1) {
+time_t parse_date(char *str) {
+	char *fmt = NULL;
+	switch (strlen(str)) {
+		case 8:
+			fmt = "%m%d%H%M";
+			break;
+
+		case 10:
+			fmt = "%y%m%d%H%M";
+			break;
+
+		case 11:
+			fmt = "%m%d%H%M.%S";
+			break;
+
+		case 12:
+			fmt = "%Y%m%d%H%M";
+			break;
+
+		case 13:
+			fmt = "%y%m%d%H%M.%S";
+			break;
+
+		case 15:
+			fmt = "%Y%m%d%H%M.%S";
+			break;
+
+		case 19:
+			fmt = "%Y-%m-%dT%H:%M:%S";
+			break;
+
+		default:
+			fprintf(stderr, "touch: invalid date format\n");
+			exit(1);
+	}
+
+	time_t now = time(NULL);
+	struct tm tm = *localtime(&now);
+
+	if (!strptime(str, fmt, &tm)) {
+		fprintf(stderr, "touch: %s\n", strerror(errno));
+		exit(1);
+	}
+
+	return mktime(&tm);
+}
+
+int main(int argc, char **argv) {
+	time_t date = -1;
+
+	int opt;
+	while ((opt = getopt(argc, argv, "cmad:t:")) != -1) {
+		switch (opt) {
+			case 'm':
+				m_flag = 1;
+				break;
+
+			case 'a':
+				a_flag = 1;
+				break;
+
+			case 'c':
+				c_flag = 1;
+				break;
+
+			case 't':
+			case 'd':
+				date = parse_date(optarg);
+				break;
+
+			default:
+				printf("touch [cmad] [file1 file2...]\n\t-c Don't create files\n\t-a Change only atime\n\t-m Change only mtime\n\t-d Date/time to use\n");
+				return 0;
+		}
+	}
+
+	argv += optind;
+	argc -= optind;
+
+	if (argc == 0) {
 		printf("touch: missing operand\n");
 		return 1;
 	}
 
-	for (int i = 1; i < argc; i++)
-		if (touch(argv[i]))
+	for (int i = 0; i < argc; i++)
+		if (touch(argv[i], date))
 			return 1;
 
 	return 0;
diff --git a/src/coreutils/uname/uname.c b/src/coreutils/uname/uname.c
index 3092f67..fac26d2 100644
--- a/src/coreutils/uname/uname.c
+++ b/src/coreutils/uname/uname.c
@@ -100,7 +100,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("uname\n\t[-a All] [-s Sys]\n\t[-n Nodename] [-r Release]\n\t[-v Version] [-m Machine]\n\t[-o Os name]\n");
+				printf("uname [asnrvmop]\n\t-a All\n\t-s Sys]\n\t-n Nodename\n\t-r Release\n\t-v Version\n\t-m Machine\n\t-o Os name\n");
 				return 0;
 		}
 	}
diff --git a/src/coreutils/wc/wc.c b/src/coreutils/wc/wc.c
index 9b64621..cef6ed5 100644
--- a/src/coreutils/wc/wc.c
+++ b/src/coreutils/wc/wc.c
@@ -84,7 +84,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("wc [file1 file2...]\n\t[-l Lines] [-c Bytes]\n\t[-w Words] [-t Don't print total]\n");
+				printf("wc [lcwt] [file1 file2...]\n\t-l Lines\n\t-c Bytes\n\t-w Words\n\t-t Don't print total\n");
 				return 0;
 		}
 	}
diff --git a/src/findutils/xargs/xargs.c b/src/findutils/xargs/xargs.c
index 9077c0b..dd80a1b 100644
--- a/src/findutils/xargs/xargs.c
+++ b/src/findutils/xargs/xargs.c
@@ -127,7 +127,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("xargs [cmd [arg1] [arg2...]]\n\t[-t Print the command]\n\t[-n Pass no more than N args]\n\t[-r Don't run command if input is empty]\n\t[-s Pass command line of no more than N bytes]\n");
+				printf("xargs [tnsr] [cmd [arg1] [arg2...]]\n\t-t Print the command\n\t-n Pass no more than N args\n\t-r Don't run command if input is empty\n\t-s Pass command line of no more than N bytes\n");
 				return 0;
 		}
 	}
diff --git a/src/networking/hostname/hostname.c b/src/networking/hostname/hostname.c
index f787a66..48bc882 100644
--- a/src/networking/hostname/hostname.c
+++ b/src/networking/hostname/hostname.c
@@ -36,7 +36,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("hostname [hostname]\n\t[-c CONFIG Use config file]\n");
+				printf("hostname [c] [hostname]\n\t-c PATH Use config file\n");
 				return 0;
 		}
 	}
diff --git a/src/procps/kill/kill.c b/src/procps/kill/kill.c
index 5b5eb03..08cccf6 100644
--- a/src/procps/kill/kill.c
+++ b/src/procps/kill/kill.c
@@ -80,7 +80,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("kill [pid1 pid2...]\n\t[-s SIG] [-l List all signals]\n\t[-a Kill all process]\n");
+				printf("kill [lsa] [pid1 pid2...]\n\t-s SIG\n\t-l List all signals\n\t-a Kill all process\n");
 				return 0;
 		}
 	}
diff --git a/src/procps/uptime/uptime.c b/src/procps/uptime/uptime.c
index 14283f7..80574c0 100644
--- a/src/procps/uptime/uptime.c
+++ b/src/procps/uptime/uptime.c
@@ -1,4 +1,6 @@
 #include <stdio.h>
+#include <string.h>
+#include <errno.h>
 #include <stdlib.h>
 #include <time.h>
 #include "config.h"
@@ -44,7 +46,7 @@ int main(void) {
 	double avg[3] = {0, 0, 0};
 
 	if (getloadavg(avg, sizeof(avg) / sizeof(avg[0])) < 0) {
-		fprintf(stderr, "getloadavg: getloadavg() failed\n");
+		fprintf(stderr, "uptime: %s\n", strerror(errno));
 		return 1;
 	}
 
diff --git a/src/shell/rc/rc.c b/src/shell/rc/rc.c
index 0160b52..ca29686 100644
--- a/src/shell/rc/rc.c
+++ b/src/shell/rc/rc.c
@@ -190,7 +190,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("rc [script]\n\t[-l UNUSED]\n");
+				printf("rc [l] [script]\n\t-l UNUSED\n");
 				return 0;
 		}
 	}
diff --git a/src/sysutils-linux/dmesg/dmesg.c b/src/sysutils-linux/dmesg/dmesg.c
index c701cc1..5e40f1a 100644
--- a/src/sysutils-linux/dmesg/dmesg.c
+++ b/src/sysutils-linux/dmesg/dmesg.c
@@ -22,7 +22,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("dmesg\n\t[-n LEVEL Set console logging level] [-s SIZE Buffer Size]\n");
+				printf("dmesg [sn]\n\t-n LEVEL Set console logging level\n\t-s SIZE Buffer Size\n");
 				return 0;
 		}
 	}
diff --git a/src/sysutils-linux/mount/mount.c b/src/sysutils-linux/mount/mount.c
index 96c10d5..53d4e29 100644
--- a/src/sysutils-linux/mount/mount.c
+++ b/src/sysutils-linux/mount/mount.c
@@ -88,7 +88,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mount [DEVICE] [NODE]\n\t[-t Fs type, default %s] [-o Options]\n\t[-a Mount all fs in /etc/fstab]\n\nOptions:\n", MOUNT_DEF_FS);
+				printf("mount [ato] [DEVICE] [NODE]\n\t-t Fs type, default %s\n\t-o Options\n\t-a Mount all fs in /etc/fstab\n\nOptions:\n", MOUNT_DEF_FS);
 				print_opts();
 				return 0;
 		}
diff --git a/src/sysutils-linux/umount/umount.c b/src/sysutils-linux/umount/umount.c
index e48ac03..74a8def 100644
--- a/src/sysutils-linux/umount/umount.c
+++ b/src/sysutils-linux/umount/umount.c
@@ -48,7 +48,7 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("umount [dst1 dst2...]\n\t[-a Umount all]\n\t[-f Force umount] [-l Lazy umount]\n");
+				printf("umount [afl] [dst1 dst2...]\n\t-a Umount all\n\t-f Force umount\n\t-l Lazy umount\n");
 				return 0;
 		}
 	}