diff --git a/bin/rbenv b/bin/rbenv
new file mode 100755
index 0000000000..6f3faab09c
--- /dev/null
+++ b/bin/rbenv
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -e
+
+command="$1"
+if [ -z "$command" ]; then
+  echo "rbenv 0.1.0" >&2
+
+else
+  command_path="$(command -v "rbenv-$command" || true)"
+  if [ -z "$command_path" ]; then
+    echo "rbenv: no such command \`$command'" >&2
+    exit 1
+  fi
+
+  shift 1
+  exec "$command_path" $*
+fi
diff --git a/bin/rbenv-exec b/bin/rbenv-exec
new file mode 100755
index 0000000000..77de1dec08
--- /dev/null
+++ b/bin/rbenv-exec
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+
+RBENV_COMMAND="$1"
+if [ -z "$RBENV_COMMAND" ]; then
+  echo "usage: rbenv exec COMMAND [arg1 arg2...]" >&2
+  exit 1
+fi
+
+RBENV_COMMAND_PATH="$(rbenv-which "$RBENV_COMMAND")"
+
+shift 1
+exec -a "$RBENV_COMMAND" "$RBENV_COMMAND_PATH" $*
diff --git a/bin/rbenv-rehash b/bin/rbenv-rehash
new file mode 100755
index 0000000000..56cb8bd09f
--- /dev/null
+++ b/bin/rbenv-rehash
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -e
+
+cd "$HOME/.rbenv/shims"
+rm *
+
+for file in ../versions/*/bin/*; do
+  ln -fs ../bin/rbenv-shim "${file##*/}"
+done
diff --git a/bin/rbenv-set-default b/bin/rbenv-set-default
new file mode 100755
index 0000000000..8567778e68
--- /dev/null
+++ b/bin/rbenv-set-default
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+RBENV_VERSION="$1"
+if [ -z "$RBENV_VERSION" ]; then
+  echo "usage: rbenv set-default VERSION" >&2
+  exit 1
+fi
+
+RBENV_VERSION_PATH="${HOME}/.rbenv/versions/${RBENV_VERSION}"
+if [ ! -d "$RBENV_VERSION_PATH" ]; then
+  echo "rbenv: version \`${RBENV_VERSION}' not installed" >&2
+  exit 1
+fi
+
+echo "$RBENV_VERSION" > "${HOME}/.rbenv/default"
diff --git a/bin/rbenv-shim b/bin/rbenv-shim
new file mode 100755
index 0000000000..36b2fc6e4a
--- /dev/null
+++ b/bin/rbenv-shim
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -e
+
+exec rbenv-exec "${0##*/}" $*
diff --git a/bin/rbenv-version b/bin/rbenv-version
new file mode 100755
index 0000000000..b4366688ea
--- /dev/null
+++ b/bin/rbenv-version
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+set -e
+
+read_version_file() {
+  egrep -m 1 '[^[:space:]]' "$1"
+}
+
+find_version_file() {
+  root="$(pwd)"
+  while [ -n "$root" ]; do
+    if [ -e "${root}/.rbenv-version" ]; then
+      echo "${root}/.rbenv-version"
+      return 0
+    fi
+    root="${root%/*}"
+  done
+  return 1
+}
+
+find_default_version_file() {
+  default_path="$HOME/.rbenv/default"
+  if [ -e "$default_path" ]; then
+    echo "$default_path"
+    return 0
+  fi
+  return 1
+}
+
+if [ -z "$RBENV_VERSION" ]; then
+  RBENV_VERSION_FILE="$(find_version_file || find_default_version_file || true)"
+
+  if [ -n "$RBENV_VERSION_FILE" ]; then
+    RBENV_VERSION="$(read_version_file "$RBENV_VERSION_FILE")"
+  else
+    echo "rbenv: no default version specified" >&2
+    exit 1
+  fi
+fi
+
+RBENV_VERSION_PATH="${HOME}/.rbenv/versions/${RBENV_VERSION}"
+
+if [ -d "$RBENV_VERSION_PATH" ]; then
+  echo "$RBENV_VERSION"
+else
+  echo "rbenv: version \`$RBENV_VERSION' is not installed" >&2
+  exit 1
+fi
diff --git a/bin/rbenv-versions b/bin/rbenv-versions
new file mode 100755
index 0000000000..2ae67e7873
--- /dev/null
+++ b/bin/rbenv-versions
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+RBENV_VERSION="$(rbenv-version)"
+
+for path in ~/.rbenv/versions/*; do
+  if [ -d "$path" ]; then
+    version="${path##*/}"
+
+    if [ "$version" == "$RBENV_VERSION" ]; then
+      echo "* ${version##*/}"
+    else
+      echo "  ${version##*/}"
+    fi
+  fi
+done
diff --git a/bin/rbenv-which b/bin/rbenv-which
new file mode 100755
index 0000000000..c14134e258
--- /dev/null
+++ b/bin/rbenv-which
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+
+RBENV_VERSION="$(rbenv-version)"
+RBENV_COMMAND="$1"
+RBENV_COMMAND_PATH="${HOME}/.rbenv/versions/${RBENV_VERSION}/bin/${RBENV_COMMAND}"
+
+if [ -x "$RBENV_COMMAND_PATH" ]; then
+  echo "$RBENV_COMMAND_PATH"
+else
+  echo "rbenv: $1: command not found" >&2
+  exit 127
+fi