1 files changed, 15 insertions, 2 deletions
diff --git a/setup.sh b/setup.sh
index 7bc8a54..5a42b91 100644
--- a/setup.sh
+++ b/setup.sh
@@ -3,15 +3,28 @@
 # Exit immediately on failure
 set -eu
 
+# Are we running in bash?
+# Single bracket to be posix compliant in case we run in sh or something
+if [ ! -z ${BASH} ]; then
+	echo "This script must be run from the Bash shell!"
+	exit 1
+fi
+
+# Are we root?
 if [[ $EUID -ne 0 ]]; then
 	echo "This script must be run as sudo or root."
-	exit 1
+	exit 2
 fi
 
-PATH_TO_SCRIPT=$(dirname $0)
+PATH_TO_SCRIPT=$(dirname $(readlink -f $0))
 ZSH_FUNC_FILE="zsh_functions.zsh"
 TMUX_FILE="tmux_conf"
 
+if [[ ! -e ${PATH_TO_SCRIPT}/${ZSH_FUNC_FILE} ]] && [[ ! -e ${PATH_TO_SCRIPT}/${TMUX_FILE} ]]; then
+	echo "Cannot find supporting files! Please clone repository and try again!"
+	exit 3
+fi
+
 echo "***********************************"
 echo "*        Installing pip           *"
 echo "***********************************"