Shell script to install and run clojure labrepl (on rpm based linux)

try-clojure.sh

#!/bin/bash
echo "Trying clojure!"
if ! sudo -S true < /dev/null &>/dev/null; then
    echo "You need sudo permission to run this script."
    exit 1
fi

LEIN=/usr/local/bin/lein

if ! which lein; then
    echo "Installing leiningen build tool..."
    sudo wget --no-check-certificate -O $LEIN http://github.com/technomancy/leiningen/raw/stable/bin/lein
    sudo chmod 755 $LEIN
fi

echo "Checking for rlwrap..." 
if ! which rlwrap; then 
    echo "No rlwrap found, yum installing..."
    sudo yum install rlwrap
fi
WORKSPACE=/tmp
LABREPL=$WORKSPACE/labrepl
cd $WORKSPACE
if [ ! -e $LABREPL ]; then
    echo "Checking out labrepl..."
    git clone git://github.com/relevance/labrepl.git
fi

cd $LABREPL
echo "Building labrepl in `pwd`..."
$LEIN deps
echo "Starting labrepl..."
script/repl