Bash script to check for required executables

testexec.sh

#!/bin/bash

test_exec() {
    echo -e "Checking for command: \e[34m$1\e[0m"
    EX=$(which $1)
    if [[ ! "$EX" ]]; then
        echo -e "\e[31mUh oh! It looks like you need to install $1:"
        echo -e "$2\e[0m"
        exit 1
    else
        echo -e "\e[32m$EX\e[0m"
    fi
}

test_exec "thrift" "https://thrift.apache.org/"
test_exec "git" "http://git-scm.com/"
test_exec "sbt" "http://www.scala-sbt.org/"
test_exec "make" "http://www.gnu.org/software/make/"