How to Install 7zip on Ubuntu Linux

7zip is a free, open source, cross platform, software used to archive and compress files (or hierarchies of files) into a single file or into a series of files with a user-specified size limit.
7zip will unRar rar files (reassemble them and extract their original contents), and 7zip supports file-splitting using its own (nonRar) format.
7zip supports all the major "archive and compression" file-types you'd want to create or view, plus it provides its own lossless compression type (7z) that I've come to prefer. In short, I don't zip or Rar files anymore; I 7zip them!
Installing a 7-zip in Ubuntu Linux is simple. Follow these instructions:
Aquire Root Password
You'll need to know the root password to install software in Ubuntu. If you've never created a root password follow these steps:
- From Ubuntu's "System" menu, open the "Users and Groups" manager: System | Administration | Users and Groups
- Click on the "root" user, and then click the properties button.
- Highlight the contents of "User Password" text-box and then over-type it with the first password that comes to your mind.
- Highlight the contents of "Confirmation" text-box and then over-type it with the same password you chose in the previous step.
- Click the "OK" button.
Install 7-Zip
- From the "Applications" menu, select "Add/Remove". This will bring up Ubuntu's applications manager.
- Select "All available applications" from the "Show" drop-down menu (located in the top-right corner of the applications manager.
- Type "7zip" in to the search box (top-left) and press <enter> on your keyboard.
- Click the check box next to "7zip" in the top-right pane. You'll then be asked if you want to install it.
- Click the "Install" button.
- Click the "Apply" button.
- Confirm you want to apply the installation by clicking the "Apply" button.
- Authenticate. Type in the root password. Now, 7-zip will be downloaded and installed.
Create and View 7zip files with Ubuntu's "Archive Manager" (file-roller)
After, installing 7zip, you'll be able compress any file or folder into a .7z file by simply: (1) right-clicking it (2) selecting "Create Archive" from the context menu (3) name the output file (4) select 7z from the drop-down-menu and (5). Click the "Create" button.
Also, you can view the contents of any 7z file by simply double-clicking it.
Advanced Features - Using 7zip's Command Line Utility
Other than the method mentioned above, Linux doesn't yet provide a GUI that graphical exposes all of 7zip's features. This means that you'll have to type some 7z commands into a command prompt. Go here for a little help:
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