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Mastering File Compression: A Guide to tar and zip Commands in Linux

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Although both the tar and zip commands are used to archive and compress files, there are some distinctions between their functions and the formats they support. Below is a description of each:

tar Command

Key Points:

  1. Creating an Archive:
    • tar -cvf archive.tar directory/
      • -c creates a new archive.
      • -v (optional) shows the progress (verbose).
      • -f specifies the filename of the archive.
      • directory/ is the directory you want to archive.
  2. Extracting an Archive:
    • tar -xvf archive.tar
      • -x extracts the archive.
      • -v (optional) shows the progress (verbose).
      • -f specifies the filename of the archive.
  3. Compressing and Archiving:
    • tar -cvzf archive.tar.gz directory/
      • -z compresses the archive using gzip.
      • The resulting file is archive.tar.gz.
  4. Extracting a Compressed Archive:
    • tar -xvzf archive.tar.gz

zip Command

Files can be compressed using zip into a ZIP archive, which is a compression and archive format. It is extensively utilized on Windows and Unix-like systems.

Key Points:

  1. Creating an Archive:
    • zip -r archive.zip directory/
      • -r recursively includes files and directories.
      • archive.zip is the name of the zip file to be created.
      • directory/ is the directory you want to archive.
  2. Extracting an Archive:
    • unzip archive.zip

What is the Differences Between tar and zip?

Format:

  • By default, tar produces an uncompressed archive (such as.tar), but it may also be used in conjunction with compression programs like gzip or bzip2 to produce compressed archives (such as.tar.gz or.tar.bz2).
  • Zip directly builds compressed archives (.zip, for example).

Usage:

  • In Unix-like systems, tar is frequently used for backups and software packaging.
  • When building archives that need to work with Windows computers, zip is more frequently employed.

Compression:

  • When tar is used in conjunction with gzip or bzip2, compression ratios are frequently higher than with zip alone.
  • For some use situations, such as enabling random access to individual files within the archive, zip compresses each file inside the archive separately.

Extraction:

  • When tar is used in conjunction with gzip or bzip2, compression ratios are frequently higher than with zip alone.
  • For some use situations, such as enabling random access to individual files within the archive, zip compresses each file inside the archive separately.

Why tar and zip is used?

tar:

When you need to combine several files and directories into a single archive file, use tar, particularly in settings similar to Unix. You may also wish to compress the archive to save space.

zip:

When you want a compressed archive that is generally compatible and can be opened on a variety of operating systems, including Windows, use zip.

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