Study Notes Lesson 20

Install and uninstall software

• 
  The software installation method under linux is similar to that under windows. There are three methods.
• rpm is very similar to exe under windows, and it can be installed directly without too many settings. The installation path and file name are all set.
• Yum is another way to install rpm packages. The packages installed under centos are called rpm packages.
• yum will automatically install the dependent packages, (for example, to install a package a that depends on package b, you have to install package b before you can install package a. yum will help you install it directly.)
• Source packages are not common under Windows. It is source code, a variety of files written in a programming language that can be compiled into executable files with a compiler.
• The source package is not easy to get.
• yum is the easiest.

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