update applications on the server and restart the service without the prompts

auto-update-script.sh

#!/bin/bash
# Copies file to the server and restarts a service on the server. If you have uploaded
# your public ssh key to the server, you should be able to run this without any prompts.
#
# If your private ssh key is password protected, consider using ssh-add to avoid being
# prompted for password every time.
#  
# author jsteiner

host=marsh
dest=/www/test
service=server-public
review=0

SCRIPT=`basename $0`

src="$1"

YELLOW='\e[93m'
GREEN='\e[32m'
RED='\e[31m'
NC='\e[39m' # no-color

if [ $# -ne 1 ]; then
	echo -e $RED"invalid number of arguments!"$NC
	echo "usage: $SCRIPT <src>"
	echo "    <src>        source directory"
	exit 1
fi

echo -e $YELLOW"the following variables are set:"$NC
echo "  dest    = $host:$dest"
echo "  service = $service"
echo " "

if [ $review -gt 0 ]; then
	echo -e $YELLOW"press <enter> to continue or ctrl+c to cancel:"$NC
	read
fi

echo -e $YELLOW"checking if <src> is a directory..."$NC
if [ ! -d $src ]; then
	echo -e $RED"error: <src> parameter should be a directory"$NC
	exit 2;
fi
echo -e $YELLOW"done!"$NC

echo -e $YELLOW"copying files..."$NC
scp -p $PORT -r $src/* $host:$dest

if [ $? -gt 0 ]; then
	echo -e $RED"error copying source to destination"$NC
	exit 3;
fi

echo -e $YELLOW"done!"$NC

echo -e $YELLOW"restarting service $service..."$NC
ssh $host "sudo stop $service && sudo start $service"

if [ $? -gt 0 ]; then
	echo -e $RED"error restarting service $service"$NC
	exit 4;
fi

echo -e $YELLOW"all done!"$NC