Example of an interactivr shell script

gistfile1.sh

#!/bin/bash


checkParam() {
for PARAM in $*; do
	test "${PARAM}" == "-i" && INTERACTIVE=true
	test "${PARAM}" == "--interactive" && INTERACTIVE=true
done
}


setVars() {

if [ "$INTERACTIVE" == "true" ];
	then
		read -p "Hostname:" HOSTNAME

##### Environment
echo -n "
Environment:
1: development
2: QA
3: liveDE
4: liveUK
"
		read -p "Num:" ENVNUM
			case "$ENVNUM" in
			1 ) ENVIRONMENT=development
			;;
			2 ) ENVIRONMENT=QA
			;;
			3 ) ENVIRONMENT=liveDE
			;;
			4 ) ENVIRONMENT=liveUK
			;;
			* ) echo "Sorry... wrong key."
				return 0
			;;
		esac



##### Hostgroup

echo -n "
Host Group:
1: Webnode
2: Cronserver
3: Devnode
4:
"
		read -p "Num:" GROUPNUM
			case "$GROUPNUM" in
                        1 ) HOSTGROUP=1
                        ;;
                        2 ) HOSTGROUP=2
                        ;;
                        3 ) HOSTGROUP=3
                        ;;
                        4 ) HOSTGROUP=4
                        ;;
                        * ) echo "Sorry... wrong key."
                                return 0
                        ;;
                esac


	else
		HOSTNAME=$1
		ENVIRONMENT=$2
		HOSTGROUP=$3
fi

sudo echo "127.0.0.1	$HOSTNAME" >> /etc/hosts
}


spellCheck() {
	if [ "$INTERACTIVE" != "true" ];
	then
                        case "$ENVIRONMENT" in
                        development | liveDE | liveUK | QA | QATest )
                        ;;
                        * ) echo "Sorry... wrong environment."
                                return 0
                        ;;
                	esac

			case "$HOSTGROUP" in
			Webnode | Cronserver )
			;;
			* ) echo "Sorry... wrong Host Group."
				return 0
			;;
			esac
	return 1

	fi

}

aptupdate() {
sudo apt-get update
}

installPuppet() {
# Install puppet client

# Set hostname
echo "$HOSTNAME" > /etc/hostname
sudo hostname $HOSTNAME

sudo apt-get install puppet -y

# Make puppet client to know our foreman
sudo echo "[main]
logdir=/var/log/puppet
vardir=/var/log/puppet
ssldir=/var/log/puppet/ssl
rundir=/var/run/puppet
factpath=\$vardir/lib/facter
templatedir=\$confdir/templates
prerun_command=/etc/puppet/etckeeper-commit-pre
postrun_command=/etc/puppet/etckeeper-commit-post
server=foreman.it.mau.myhammer.net
listen=true
environment=$ENVIRONMENT

[master]
# These are needed when the puppetmaster is run by passenger
# and can safely be removed if webrick is used.
ssl_client_header = SSL_CLIENT_S_DN
ssl_client_verify_header = SSL_CLIENT_VERIFY
" > /etc/puppet/puppet.conf


# allow autthentication with foreman
sudo echo "path /run
auth any
method save
allow foreman.it.mau.myhammer.net
" > /etc/puppet/auth.conf

# auto start of puppet agent during VM boot
sudo echo "#Start puppet on boot?
START=yes

# Startup options
DAEMON_OPTS=\"\"
" > /etc/default/puppet

# Start puppet agent
sudo service puppet stop
sudo puppet agent --no-daemonize --onetime
sleep 5

}


installRuby() {
  sudo apt-get install ruby1.9.1-full -y
  sudo apt-get install rubygems -y

  rm -f /etc/alternatives/ruby
  ln -s /usr/bin/ruby1.9.1 /etc/alternatives/ruby
  rm -f /etc/alternatives/gem
  ln -s /usr/bin/gem1.9.1 /etc/alternatives/gem


  sudo gem install rest-client
  sudo gem install json

}