diff --git a/.gitignore b/.gitignore
index 2f8595f..135fc5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-*
-!/*
-!/**/Makefile
-!/**/*.zig
+*.o
+*.tar.gz
+/bin
diff --git a/Makefile b/Makefile
index bfd69f1..77c9b3e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,33 +1,20 @@
 NAME=coreutils
-VERSION=0.0.1
+VERSION := $(shell cat version.zig | grep "pub const version" | awk '{print $$5}' | sed "s/\"//g" | sed "s/;//")
 PREFIX=/usr
 MANPREFIX=${PREFIX}/share/man
+PROG=cat cp ls mkdir pwd rm touch
+CC=zig build-exe
+RELEASE=ReleaseSmall
 
-all:
-	mkdir bin
-	cd cat && make && mv cat ../bin && rm -rf cat.o && cd ..
-	cd cp && make && mv cp ../bin && rm -rf cp.o && cd ..
-	cd ls && make && mv ls ../bin && rm -rf ls.o && cd ..
-	cd mkdir && make && mv mkdir ../bin && rm -rf mkdir.o && cd ..
-	cd pwd && make && mv pwd ../bin && rm -rf pwd.o && cd ..
-	cd rm && make && mv rm ../bin && rm -rf rm.o && cd ..
-	cd touch && make && mv touch ../bin && rm -rf touch.o && cd ..
+all: ${PROG}
+
+%: %.zig
+	mkdir -p bin
+	${CC} $< -O ${RELEASE} --name $@
+	mv $@ bin
+	mv $@.o bin
 
 clean:
-	rm -rf bin
+	rm -rf bin/${PROG}
 
-install: all
-	mkdir -p ${DESTDIR}${PREFIX}/bin
-	cp -f bin/* ${DESTDIR}${PREFIX}/bin
-	chmod 755 ${DESTDIR}${PREFIX}/bin/cat
-	chmod 755 ${DESTDIR}${PREFIX}/bin/cp
-	chmod 755 ${DESTDIR}${PREFIX}/bin/ls
-	chmod 755 ${DESTDIR}${PREFIX}/bin/mkdir
-	chmod 755 ${DESTDIR}${PREFIX}/bin/pwd
-	chmod 755 ${DESTDIR}${PREFIX}/bin/rm
-	chmod 755 ${DESTDIR}${PREFIX}/bin/touch
-	#mkdir -p ${DESTDIR}${MANPREFIX}/man1
-	#sed "s/VERSION/${VERSION}/g" < ${NAME}.1 > ${DESTDIR}${MANPREFIX}/man1/${NAME}.1
-	#chmod 644 ${DESTDIR}${MANPREFIX}/man1/${NAME}.1
-
-.PHONY: all clean dist install
+.PHONY: all clean
diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..87695f4
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,73 @@
+* [ ] awk
+* [ ] basename
+* [-] cat
+* [ ] chmod
+* [ ] chown
+* [ ] cksum
+* [-] cp
+* [ ] date
+* [ ] dd
+* [ ] df
+* [ ] diff
+* [ ] du
+* [ ] echo
+* [ ] env
+* [ ] grep
+* [ ] groups
+* [ ] head
+* [ ] hostid
+* [ ] hostname
+* [ ] id
+* [ ] install
+* [ ] kill
+* [ ] ln
+* [-] ls
+* [ ] md5sum
+* [x] mkdir
+* [ ] mkfifo
+* [ ] mknod
+* [ ] mktemp
+* [ ] mv
+* [ ] nl
+* [ ] od
+* [ ] pathchk
+* [ ] pr
+* [ ] printenv
+* [ ] ptx
+* [x] pwd
+* [ ] readlink
+* [ ] realpath
+* [x] rm
+* [ ] rmdir
+* [ ] runcon
+* [ ] seq
+* [ ] shred
+* [ ] shuf
+* [ ] sleep
+* [ ] sort
+* [ ] split
+* [ ] stat
+* [ ] stdbuf
+* [ ] stty
+* [ ] sum
+* [ ] tac
+* [ ] tail
+* [ ] tee
+* [ ] test
+* [ ] time
+* [ ] timeout
+* [-] touch
+* [ ] tr
+* [ ] truncate
+* [ ] tsort
+* [ ] tty
+* [ ] uname
+* [ ] unexpand
+* [ ] uniq
+* [ ] unlink
+* [ ] uptime
+* [ ] users
+* [ ] vdir
+* [ ] wc
+* [ ] who
+* [ ] whoami
diff --git a/cat/cat.zig b/cat.zig
similarity index 98%
rename from cat/cat.zig
rename to cat.zig
index 3b1ba71..00fce73 100644
--- a/cat/cat.zig
+++ b/cat.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/cat/Makefile b/cat/Makefile
deleted file mode 100644
index 4cd4975..0000000
--- a/cat/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=cat
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/cp/cp.zig b/cp.zig
similarity index 97%
rename from cp/cp.zig
rename to cp.zig
index 99cacf5..84fe97a 100644
--- a/cp/cp.zig
+++ b/cp.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/cp/Makefile b/cp/Makefile
deleted file mode 100644
index d370602..0000000
--- a/cp/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=cp
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/ls/ls.zig b/ls.zig
similarity index 98%
rename from ls/ls.zig
rename to ls.zig
index 38c59d8..6255121 100644
--- a/ls/ls.zig
+++ b/ls.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/ls/Makefile b/ls/Makefile
deleted file mode 100644
index 7dd7691..0000000
--- a/ls/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=ls
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/mkdir/mkdir.zig b/mkdir.zig
similarity index 98%
rename from mkdir/mkdir.zig
rename to mkdir.zig
index 0e1a60f..b7b15f5 100644
--- a/mkdir/mkdir.zig
+++ b/mkdir.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/mkdir/Makefile b/mkdir/Makefile
deleted file mode 100644
index 746c1fc..0000000
--- a/mkdir/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=mkdir
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/pwd/pwd.zig b/pwd.zig
similarity index 97%
rename from pwd/pwd.zig
rename to pwd.zig
index 23cbb9a..20f4c48 100644
--- a/pwd/pwd.zig
+++ b/pwd.zig
@@ -3,7 +3,7 @@ const io = std.io;
 const os = std.os;
 const fs = std.fs;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/pwd/Makefile b/pwd/Makefile
deleted file mode 100644
index e0e663c..0000000
--- a/pwd/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=pwd
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/rm/rm.zig b/rm.zig
similarity index 98%
rename from rm/rm.zig
rename to rm.zig
index e93a205..c854a8f 100644
--- a/rm/rm.zig
+++ b/rm.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/rm/Makefile b/rm/Makefile
deleted file mode 100644
index 5ddfa55..0000000
--- a/rm/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=rm
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/touch/touch.zig b/touch.zig
similarity index 98%
rename from touch/touch.zig
rename to touch.zig
index 6bd21dc..ac24af5 100644
--- a/touch/touch.zig
+++ b/touch.zig
@@ -2,7 +2,7 @@ const std = @import("std");
 const fs = std.fs;
 const io = std.io;
 
-const version = "1.0.0";
+const version = @import("version.zig").version;
 
 fn help() !void {
     const stdof = io.getStdOut().writer();
diff --git a/touch/Makefile b/touch/Makefile
deleted file mode 100644
index 1e0367a..0000000
--- a/touch/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-NAME=touch
-VERSION := $(shell cat ../Makefile | grep "VERSION=" | sed 's/VERSION=//')
-SRC=${NAME}.zig
-CC=zig build-exe
-RELEASE=ReleaseSmall
-
-all:
-	${CC} ${SRC} -O ${RELEASE} --name ${NAME}
-
-clean:
-	rm -f ${NAME} ${NAME}.o
-
-.PHONY: all clean
diff --git a/version.zig b/version.zig
new file mode 100644
index 0000000..ea47ee0
--- /dev/null
+++ b/version.zig
@@ -0,0 +1 @@
+pub const version = "0.0.1";