ubuntu command

$ sudo apt-get update
$ sudo apt-get install git
$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )
$ rvm install 1.9.2
$ rvm pkg install zlib
$ cd ruby-1.9.2-p0/ext/zlib
ruby extconf.rb
make
sudo make install
$ rvm gem install rails
$ suod apt-get install mysql-server
  following extra packages will be installed(libdbd-mysql-perl libdbi-perl libhtml-template-perl libmysqlclient16 	libnet-demon-perl liplrpc-perl mysql-client-5.1 mysql-client-core5.1 mysql-common mysql-server-5.1 mysql-server-core-5.1)

$ sudo apt-get install libmysqlclient-dev
  following new packages will be install 
  (zlibg-dev libmysqlclient-dev) 

mongoDB install
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10
add a line into source.list
deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen - on Ubuntu
$ sudo apt-get install mongodb-10gen

# openssl problem
sudo apt-get install libssl-dev
/home/user/.rvm/archives/ruby-1.9.2-p290/ext/openssl
ruby extconf.rb 
make
sudo make install

# marshel data too shot(Argument error)
remove .gems/spec folder

# shutdown is not working
http://salaba.wordpress.com/2011/05/28/ubuntu-11-04-shut-down-problem-solved/


# nokogiri install problen libxml perser
$ sudo apt-get install libxml2
$ sudo apt-get install libxslt-dev libxml2-dev


# readline
sudo apt-get install libncurses5-dev libreadline5-dev
/home/user/.rvm/archives/ruby-1.9.2-p290/ext/readline
ruby extconf.rb 
make
sudo make install

#redis installation
curl -0 http://redis.googlecode.com/files/redis-1.0.tar.gz
tar xvzf redis-1.0.tar.gz
cd redis-1.0
make
sudo cp redis-server redis-cli redis-benchmark /user/local/bin
redis-server


# mongodb connection problem
sudo rm /var/lib/mongodb/mongod.lock
sudo -u mongodb mongod -f /etc/mongodb.conf --repair
sudo start mongodb
sudo status mongodb

# no public key found in . you want to specify full path 
$ ssh-keygen -t rsa -C "sandip_mondal85@yahoo.co.in"
$heroku keys:add

# How to set environment variable in ubuntu
export Hello="Sandip"  # using export command

# how to find file 
A. grep pdfserver `find -iname *.rb`