cleanup already installed soft.

diff --git a/bootstrap-install-system.sh b/bootstrap-install-system.sh
new file mode 100755
index 0000000..425e27e
--- /dev/null
+++ b/bootstrap-install-system.sh
@@ -0,0 +1,15 @@
+#!/bin/bash -xe
+
+# This is a bootstrap script to install the needed script
+# for installing my overall system.
+# To deploy this script, download it directly from github and make it executable.
+# wget https://github.com/ardumont/sh/bootstrap-install-system.sh
+# chmod +x bootstrap-install-system.sh
+# then execute it.
+
+sudo aptitude install -y git tig emacs24 tmux ruby gitk
+
+# you must have pre-setup your ssh key to access the github account
+CLONE_DIR=$HOME/repo/perso
+
+[ ! d $CLONE_DIR/sh ] && git clone git@github.com:ardumont/sh.git $CLONE_DIR/sh && ln -s $CLONE_DIR/sh $HOME/bin