Bash script to install XAR. Run as root and takes one command line argument where you want the xar executable to exist.

Install XAR

#!/bin/bash
if [ "`whoami`" != "root" ]; then
  printf "Please run this script as root or using sudo\n"
	exit 0
fi

LIB_DIR=$1
CURRENT_DIR=`pwd`

printf "Setting up XAR\n"
XAR=xar-1.6.1
cp $XAR.tar.gz $LIB_DIR/
cd $LIB_DIR
tar -xzvf $XAR.tar.gz
rm $XAR.tar.gz
cd $XAR

./configure
make
sudo make install

cd $CURRENT_DIR

printf "******************************\n"
printf "xar setup!\n"
printf "******************************\n"

It sudo's the make install so shouldn't require root for the whole script. Suggest removing lines 2-5

This is extremely bad advice. Please never run any code as root or sudo unless it's your code. You should never install any software to system global paths. Use local builds.

The inconsistent whtitespace characters on lines 3/4 are driving me crazy