The file name extension for RAR is. Rar,mime type is application/x-rar-compressed.
Similarly lossless data compression, RAR files are usually higher than zip file compression, but the compression speed is slower. Because the RAR file header also occupy a certain space, in the data compression is not large, compressed files may be larger than the original file. A main advantage of RAR is the file compression target can be divided into multiple files, and it is easy to extract from such a compressed file source files.
In addition, RAR also supports the austerity format, the compression of all files to the same data area to increase the compression ratio, at the cost of extracting a separate file must be extracted before all the files. The new RAR encryption algorithm uses AES, while the old RAR encryption algorithm is private. Both of these algorithms are difficult to crack, so in the absence of a password can only use the dictionary brute force to break the law. RAR can also add redundant repair information, the file is damaged, but the repair information is good enough to repair the compressed package.
How to create or extract RAR files in ubuntu system?
Code:
sudo apt install rar unrar
Now you are free to create or extract RAR files.