CentOS Basic Usage

After a long time using Ubuntu, I find Ubuntu interesting, easy to use, and convenient to programming Ruby on Rails. However, talking about Linux, I think CentOS is also the big candidate that should be mentioned and tried. Today, I want to summary some basic usages relating to CentOS only before starting to use it. I will update this post continuously during my usage of CentOS.

• check your CentOS version

  cat /etc/redhat-release
  

• Update repository

  yum update
  

• List package name

  yum list 
  

• Install package by console

  yum install 
  

• Remove package

  yum remmove 
  

• Know which version of application installed

  yum list installed | grep name_of_app
  

• Install Ruby on CentOS via RVM

  yum groupinstall -y development
  
  curl -L get.rvm.io | bash -s stable
  source /etc/profile.d/rvm.sh
  
  rvm reload
  rvm install 2.1.0 
  
  ruby --version
  rvm list rubies
  rvm use 2.1.0 --default