Working with tar archives in Linux

tar is the go-to tool in Linux for bundling files and directories into a single archive. Importantly, tar itself does not compress anything — it simply packs files together while preserving directory structure, permissions, ownership, timestamps, and other metadata. Compression comes from separate tools:

• gzip → .tar.gz or .tgz (most common)
• bzip2 → .tar.bz2 / .tbz (better compression, slower)
• xz → .tar.xz (excellent compression, modern standard)

That's why most Linux archives have double extensions like archive.tar.gz.

Core commands & flags

• -c — create a new archive
• -x — extract files from an archive
• -t — list contents (without extracting)
• -f — specify the archive filename (almost always needed)
• -v — verbose: show files as they are processed
• -z — filter through gzip (for .tar.gz)
• -j — filter through bzip2 (for .tar.bz2)
• -J — filter through xz (for .tar.xz)
• -C — change to a directory before extracting (or for packing)
• --exclude — skip files or patterns

Creating archives

1. Standard .tar.gz (fast & widely compatible):

   tar -czvf archive.tar.gz /path/to/folder
   

   Current directory:

   tar -czvf archive.tar.gz .
   

2. .tar.bz2 (stronger compression, slower):

   tar -cjvf archive.tar.bz2 /path/to/folder
   

3. .tar.xz (best compression ratio, modern choice):

   tar -cJvf archive.tar.xz /path/to/folder
   

4. Plain .tar (no compression — rare today):

   tar -cvf archive.tar /path/to/folder
   

Extracting archives

1. tar.gz:

   tar -xzvf archive.tar.gz
   

2. tar.bz2:

   tar -xjvf archive.tar.bz2
   

3. tar.xz:

   tar -xJvf archive.tar.xz
   

4. Extract to a specific folder (creates it if missing):

   tar -xzvf archive.tar.gz -C /path/to/destination
   

Listing archive contents (without extracting)

tar -tzvf archive.tar.gz     # .gz
tar -tjvf archive.tar.bz2    # .bz2
tar -tJvf archive.tar.xz     # .xz
tar -tvf archive.tar         # plain tar

Practical examples

• Exclude logs and cache folders:

tar -czvf archive.tar.gz /var/www --exclude='*.log' --exclude='cache'

• Append files to an existing tar archive:

tar -rvf archive.tar newfile.txt

• Extract only a specific file or folder:

tar -xzvf archive.tar.gz path/inside/archive/file.php

• Archive only PHP files found by search:

find /var/www -name "*.php" | tar -czvf php_files.tar.gz -T -

Pro tips

• Always use -v when working manually — you can see exactly what’s being processed.
• For very large archives, add progress feedback: --checkpoint и --checkpoint-action=dot (shows a dot every 1000 files)
• Extract and cd into the folder in one line: tar -xzvf archive.tar.gz && cd ${archive%.tar.gz}
• Prefer .tar.xz today — it usually gives the smallest size with good speed on modern hardware.