diff --git a/base64/base64.rs b/base64/base64.rs
index a05c9c520..b5315c9af 100644
--- a/base64/base64.rs
+++ b/base64/base64.rs
@@ -9,10 +9,12 @@
  * that was distributed with this source code.
  */
 
+#[feature(phase)];
 #[feature(macro_rules)];
 
 extern crate serialize;
 extern crate getopts;
+#[phase(syntax, link)] extern crate log;
 
 use std::char;
 use std::io::{println, File, stdin, stdout};
diff --git a/cat/cat.rs b/cat/cat.rs
index cd940fd4b..9eae55a6b 100644
--- a/cat/cat.rs
+++ b/cat/cat.rs
@@ -15,7 +15,9 @@
 extern crate getopts;
 
 use std::os;
-use std::io::{print, stdin, stdout, File};
+use std::io::{print, File};
+use std::io::stdio::{stdout_raw, stdin_raw};
+use std::io::{BufferedReader, BufferedWriter};
 
 fn main() {
     let args = os::args();
@@ -95,7 +97,6 @@ fn is_newline_char(byte: u8) -> bool {
 }
 
 pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_ends: bool, show_tabs: bool, squeeze_blank: bool) {
-    let mut writer = stdout();
 
     if NumberNone != number || show_nonprint || show_ends || show_tabs || squeeze_blank {
         let mut counter: uint = 1;
@@ -107,57 +108,42 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
                 None => { continue }
             };
 
+            let mut writer = BufferedWriter::with_capacity(1024 * 8, stdout_raw());
             let mut at_line_start = true;
-            let mut buf = [0, .. 2];
+            let mut buf = ~[0, .. 1024 * 4];
             loop {
                 // reading from a TTY seems to raise a condition on
                 // EOF, rather than return Some(0) like a file.
                 match reader.read(buf) {
                     Ok(n) if n != 0 => {
-                        for byte in buf.slice_to(n).iter() {
-                            if at_line_start && (number == NumberAll || (number == NumberNonEmpty && !is_newline_char(*byte))) {
-                                match write!(&mut writer as &mut Writer, "{0:6u}\t", counter) {
-                                    Ok(_) => (), Err(err) => fail!("{}", err)
-                                };
+                        for &byte in buf.slice_to(n).iter() {
+                            if at_line_start && (number == NumberAll || (number == NumberNonEmpty && !is_newline_char(byte))) {
+                                (write!(&mut writer as &mut Writer, "{0:6u}\t", counter)).unwrap();
                                 counter += 1;
                                 at_line_start = false;
                             }
-                            if is_numbering && *byte == LF {
+                            if is_numbering && byte == LF {
                                 at_line_start = true;
                             }
-                            if show_tabs && *byte == TAB {
-                                match writer.write(bytes!("^I")) {
-                                    Ok(_) => (), Err(err) => fail!("{}", err)
-                                };
-                            } else if show_ends && *byte == LF {
-                                match writer.write(bytes!("$\n")) {
-                                    Ok(_) => (), Err(err) => fail!("{}", err)
-                                };
-                            } else if show_nonprint && (*byte < 32 || *byte >= 127) && !is_newline_char(*byte) {
-                                let mut byte = *byte;
+                            if show_tabs && byte == TAB {
+                                writer.write(bytes!("^I")).unwrap();
+                            } else if show_ends && byte == LF {
+                                writer.write(bytes!("$\n")).unwrap();
+                            } else if show_nonprint && (byte < 32 || byte >= 127) && !is_newline_char(byte) {
+                                let mut byte = byte;
                                 if byte >= 128 {
-                                    match writer.write(bytes!("M-")) {
-                                        Ok(_) => (), Err(err) => fail!("{}", err)
-                                    };
+                                    writer.write(bytes!("M-")).unwrap();
                                     byte = byte - 128;
                                 }
                                 if byte < 32 {
-                                    match writer.write(['^' as u8, byte + 64]) {
-                                        Ok(_) => (), Err(err) => fail!("{}", err)
-                                    };
+                                    writer.write(['^' as u8, byte + 64]).unwrap();
                                 } else if byte == 127 {
-                                    match writer.write(['^' as u8, byte - 64]) {
-                                        Ok(_) => (), Err(err) => fail!("{}", err)
-                                    };
+                                    writer.write(['^' as u8, byte - 64]).unwrap();
                                 } else {
-                                    match writer.write([byte]) {
-                                        Ok(_) => (), Err(err) => fail!("{}", err)
-                                    };
+                                    writer.write_u8(byte).unwrap();
                                 }
                             } else {
-                                match writer.write([*byte]) {
-                                    Ok(_) => (), Err(err) => fail!("{}", err)
-                                };
+                                writer.write_u8(byte).unwrap();
                             }
                         }
                     },
@@ -168,7 +154,8 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
         return;
     }
 
-    let mut buf = [0, .. 100000];
+    let mut writer = stdout_raw();
+    let mut buf = ~[0, .. 1024 * 64];
     // passthru mode
     for path in files.iter() {
         let mut reader = match open(path.to_owned()) {
@@ -181,9 +168,7 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
             // rather than return Some(0) like a file.
             match reader.read(buf) {
                 Ok(n) if n != 0 => {
-                    match writer.write(buf.slice_to(n)) {
-                        Ok(_) => (), Err(err) => fail!("{}", err)
-                    }
+                    writer.write(buf.slice_to(n)).unwrap();
                 }, _ => break
             }
         }
@@ -192,7 +177,7 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
 
 fn open(path: ~str) -> Option<~Reader> {
     if "-" == path {
-        return Some(~stdin() as ~Reader);
+        return Some(~stdin_raw() as ~Reader);
     }
 
     match File::open(&std::path::Path::new(path.as_slice())) {
@@ -200,3 +185,4 @@ fn open(path: ~str) -> Option<~Reader> {
         Err(e) => fail!("cat: {0:s}: {1:s}", path, e.to_str())
     }
 }
+/* vim: set ai ts=4 sw=4 sts=4 et : */
diff --git a/cp/cp.rs b/cp/cp.rs
new file mode 100644
index 000000000..f61bd99b8
--- /dev/null
+++ b/cp/cp.rs
@@ -0,0 +1,178 @@
+#[crate_id(name="cp", vers="1.0.0", author="Jordy Dickinson")];
+#[feature(macro_rules)];
+#[feature(phase)];
+
+/*
+ * This file is part of the uutils coreutils package.
+ *
+ * (c) Jordy Dickinson <jordy.dickinson@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE file
+ * that was distributed with this source code.
+ */
+
+extern crate getopts;
+#[phase(syntax, link)] extern crate log;
+
+use std::os;
+use std::io;
+use std::io::fs;
+
+use getopts::{
+    getopts,
+    optflag,
+    usage,
+};
+
+#[deriving(Eq)]
+pub enum Mode {
+    Copy,
+    Help,
+    Version,
+}
+
+fn main() {
+    let args = os::args();
+    let opts = ~[
+        optflag("h", "help", "display this help and exit"),
+        optflag("", "version", "output version information and exit"),
+    ];
+    let matches = match getopts(args.tail(), opts) {
+        Ok(m) => m,
+        Err(e) => {
+            error!("error: {:s}", e.to_err_msg());
+            fail!()
+        },
+    };
+
+    let progname = args[0].clone();
+    let usage = usage("Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.", opts);
+    let mode = if matches.opt_present("version") {
+        Version
+    } else if matches.opt_present("help") {
+        Help
+    } else {
+        Copy
+    };
+
+    match mode {
+        Copy    => copy(matches),
+        Help    => help(progname, usage),
+        Version => version(),
+    }
+}
+
+fn version() {
+    println!("cp 1.0.0");
+}
+
+fn help(progname: &str, usage: &str) {
+    let msg = format!("Usage: {0} SOURCE DEST\n  \
+                         or:  {0} SOURCE... DIRECTORY\n  \
+                         or:  {0} -t DIRECTORY SOURCE\n\
+                       \n\
+                       {1}", progname, usage);
+    println!("{}", msg);
+}
+
+fn copy(matches: getopts::Matches) {
+    let sources = if matches.free.len() < 1 {
+        error!("error: Missing SOURCE argument. Try --help.");
+        fail!()
+    } else {
+        // All but the last argument:
+        matches.free.slice(0, matches.free.len() - 2)
+            .map(|arg| ~Path::new(arg.clone()))
+    };
+    let dest = if matches.free.len() < 2 {
+        error!("error: Missing DEST argument. Try --help.");
+        fail!()
+    } else {
+        // Only the last argument:
+        ~Path::new(matches.free[matches.free.len() - 1].clone())
+    };
+
+    assert!(sources.len() >= 1);
+
+    if sources.len() == 1 {
+        let source = sources[0].clone();
+        let same_file = match paths_refer_to_same_file(source, dest) {
+            Ok(b)  => b,
+            Err(e) => if e.kind == io::FileNotFound {
+                false
+            } else {
+                error!("error: {:s}", e.to_str());
+                fail!()
+            }
+        };
+
+        if same_file {
+            error!("error: \"{:s}\" and \"{:s}\" are the same file",
+                source.display().to_str(),
+                dest.display().to_str());
+            fail!();
+        }
+
+        let io_result = fs::copy(source, dest);
+
+        if io_result.is_err() {
+            let err = io_result.unwrap_err();
+            error!("error: {:s}", err.to_str());
+            fail!();
+        }
+    } else {
+        if fs::stat(dest).unwrap().kind != io::TypeDirectory {
+            error!("error: TARGET must be a directory");
+            fail!();
+        }
+
+        for source in sources.iter() {
+            if fs::stat(*source).unwrap().kind != io::TypeFile {
+                error!("error: \"{:s}\" is not a file", source.display().to_str());
+                continue;
+            }
+
+            let mut full_dest = dest.clone();
+
+            full_dest.push(source.filename_str().unwrap());
+
+            println!("{:s}", full_dest.display().to_str());
+
+            let io_result = fs::copy(*source, full_dest);
+
+            if io_result.is_err() {
+                let err = io_result.unwrap_err();
+                error!("error: {:s}", err.to_str());
+                fail!()
+            }
+        }
+    }
+}
+
+pub fn paths_refer_to_same_file(p1: &Path, p2: &Path) -> io::IoResult<bool> {
+    let mut raw_p1 = ~p1.clone();
+    let mut raw_p2 = ~p2.clone();
+
+    let p1_lstat = match fs::lstat(raw_p1) {
+        Ok(stat) => stat,
+        Err(e)   => return Err(e),
+    };
+
+    let p2_lstat = match fs::lstat(raw_p2) {
+        Ok(stat) => stat,
+        Err(e)   => return Err(e),
+    };
+
+    // We have to take symlinks and relative paths into account.
+    if p1_lstat.kind == io::TypeSymlink {
+        raw_p1 = ~fs::readlink(raw_p1).unwrap();
+    }
+    raw_p1 = ~os::make_absolute(raw_p1);
+
+    if p2_lstat.kind == io::TypeSymlink {
+        raw_p2 = ~fs::readlink(raw_p2).unwrap();
+    }
+    raw_p2 = ~os::make_absolute(raw_p2);
+
+    Ok(raw_p1 == raw_p2)
+}
diff --git a/tee/tee.rs b/tee/tee.rs
index 43cf53894..16ab9fabe 100644
--- a/tee/tee.rs
+++ b/tee/tee.rs
@@ -1,5 +1,7 @@
 #[crate_id(name="tee", vers="1.0.0", author="Aleksander Bielawski")];
 #[license="MIT"];
+#[feature(phase)];
+#[feature(macro_rules)];
 
 /*
  * This file is part of the uutils coreutils package.
@@ -11,6 +13,7 @@
  */
 
 extern crate getopts;
+#[phase(syntax, link)] extern crate log;
 
 use std::io::{println, stdin, stdout, Append, File, Truncate, Write};
 use std::io::{IoResult};