ARJ

ARJ[edit | edit source]

ARJ is a file compression utility that was developed by Robert K. Jung in 1989. It stands for "Archived by Robert Jung" and is commonly used to compress and archive files on various computer systems. ARJ is known for its high compression ratio and fast decompression speed, making it a popular choice among users.

History[edit | edit source]

ARJ was first released in 1989 as a command-line utility for MS-DOS. It quickly gained popularity due to its efficient compression algorithm and ease of use. Over the years, ARJ has been updated and improved to support different operating systems, including Windows, Linux, and macOS.

Features[edit | edit source]

ARJ offers a range of features that make it a versatile file compression tool. Some of its notable features include:

1. High Compression Ratio: ARJ uses a powerful compression algorithm that can significantly reduce the size of files without compromising their quality. This allows users to save disk space and transfer files more efficiently.

2. Fast Decompression Speed: ARJ is known for its fast decompression speed, which ensures that archived files can be extracted quickly and easily.

3. File Encryption: ARJ provides the option to encrypt archived files, ensuring that sensitive data remains secure. This feature is particularly useful when sharing files over insecure networks or storing them in the cloud.

4. File Splitting: ARJ allows users to split large files into smaller parts, making it easier to transfer or store them on multiple disks or devices.

5. Archive Recovery: In case of any corruption or damage to an ARJ archive, the utility provides built-in recovery options to repair and restore the files.

Usage[edit | edit source]

To compress files using ARJ, the following command can be used:

``` ARJ a -r <archive_name> <files_to_compress> ```

To extract files from an ARJ archive, the following command can be used:

``` ARJ x <archive_name> ```

ARJ also supports various command-line options and parameters for advanced usage. These options allow users to customize the compression level, encryption settings, and other parameters according to their requirements.