Check all necessary elements are installed on production/dev/staging machine

check_server_setup.sh

#!/usr/bin/env bash
# 1- Copy to the remote machine
# cat check_server_setup.sh | ssh [email protected] 'cat >> ~/check_server_setup.sh'
# 2- Chmod to make it excecutable
# chmod a+x check_server_setup.sh
# 3- Run it
# sudo ./check_server_setup.sh

# Ngnix
if aptitude search '~i ^nginx$' | grep -q nginx; then
 echo "nginx already installed."
else
 echo "--> nginx NOT installed"
fi

# Postgresql
if aptitude search '~i ^postgresql$' | grep -q postgresql; then
  echo "postgresql already installed."
else
  echo "--> postgresql NOT installed"
fi

# MySql
if aptitude search '~i ^mysql-server$' | grep -q mysql-server; then
  echo "mysql already installed."
else
  echo "--> mysql NOT installed"
fi

# MongoDB
if aptitude search '~i ^mongodb' | grep -q mongodb; then
  echo "mongodb already installed."
else
  echo "--> mongodb NOT installed"
fi

# Node.js
if aptitude search '~i ^nodejs$' | grep -q nodejs; then
  echo 'nodejs already installed.'
else
  echo "--> node.js NOT installed"
fi

# Redis server
if aptitude search '~i ^redis-server$' | grep -q redis-server; then
  echo 'redis-server already installed.'
else
  echo "--> redis NOT installed"
fi

# Rbenv
if test -x ~/.rbenv/bin/rbenv; then
  echo 'rbenv already installed'
else
  echo "--> rbenv NOT installed"
fi

#i Rvm
if test -x /usr/local/rvm/bin/rvm; then
  echo 'rvm already installed.'
else
  echo "--> rvm NOT installed"
fi

# Bundler
if gem list | grep -q bundler; then
  echo 'bundler already installed.'
else
  echo "--> bundler NOT installed"
fi