Difference between “apt-get remove” or “apt-get purge”

Should I use apt-get remove or apt-get purge

apt-get remove :

        remove is identical to install except that packages are removed

        instead of installed. Note that removing a package leaves its

        configuration files on the system. If a plus sign is appended to the

        package name (with no intervening space), the identified package

        will be installed instead of removed.

apt-get  purge

        purge is identical to remove except that packages are removed and

        purged (any configuration files are deleted too).

I would tend to use purge if you tend to not want to keep any configuration files around.

Related Posts :

Linux Tutorial for Beginners

Importance command for Java developer

How to Empty a file  

How to delete a non-empty directory in Terminal?

rm -rf myfolder

It deletes all files and folders contained in the myfolder directory.

Add sudo at the beginning of the command :

In case user doesn't have the permission to delete the folder:

sudo rm -rf myfolder

Otherwise, without sudo you will be returned permission denied. And it's a good practice to try not to use -f while deleting a directory:

sudo rm -r myfolder

Note: this is assuming you are already on the same level of the folder you want to delete in terminal, if not:

sudo rm -r /path/to/myfolder
FYI: you can use letters -f, -r, -v:

-f = to ignore non-existent files, never prompt
-r = to remove directories and their contents recursively
-v = to explain what is being done

How to Install Java In Ubuntu

Installing default JRE/JDK

 Step 1:
  
       sudo apt-get update
Step 2:
      sudo apt-get install default-jre  
Step 3:
  sudo apt-get install default-jdk
   
Step 4:

 java -version

Installing OpenJDK 7

 Step 1:

sudo apt-get install openjdk-7-jre

Step 2:

sudo apt-get install openjdk-7-jdk

 

 

 

 

 

 

Linux Tutorial for Beginners

Importance command for Java developer

Basic commands
How to create file.
How to create folder.
how to change permissions.
how to use vi editor.
grep commands.
how to install java on ubuntu using command
command for tomcat
sudo command
pipelines
filter
wildcards.

 Software Instalation

Adobe reader
Mysql
ellipse