Ubuntu Tutorials - Herong's Tutorial Examples - v1.25, by Herong Yang
"rar" and "unrar" - Roshal Archive Files
This section provides a tutorial example on how to use 'unrar' package to extract files from a RAR archive file.
What is RAR file format?, RAR (Roshal Archive) is file compression and archive format developed in 1993 by Russian software engineer Eugene Roshal.
A unique feature of RAR file format is the ability of creating multi-volume archive. If you have a huge amount of files, RAR can archive them into a series of archive files named with .rar, .r00, r01, ... file extensions. Each archive file can be limited to a given size. This was extremely useful back in the old days, when files were transferred by 720 KB or 1.44 MB floppy disks.
If you receive a .rar archive file on your Ubuntu computer, you need to install the "unrar" package to extract files from the archive as shown below:
# install "unrar" package herong$ sudo apt install unrar # extract all files from a RAR archive herong$ unrar x old_stuff.rar
Table of Contents
Introduction to Ubuntu Systems
GNOME - Desktop Interface and Environment
Shell - The Command-Line Interpreter
"more", "head" and "cat" - Read Files
"split" and "cat" - Split and Join Files
"compress/uncompress" - Compressed *.Z Files
"gzip/gunzip" - Compressed *.gz Files
"xz/unxz" - Compressed *.xz or *.lzma Files
"tar -c" and "tar -x" - Create and Extract Archive Files
"zip" and "unzip" - Create and Extract ZIP Files
►"rar" and "unrar" - Roshal Archive Files