Extract Tar.xz Archives with pv and tar Command

This command is used to extract a tar archive file (.tar.xz) and pipe it to the 'tar' command to extract its contents.

Here's the breakdown of the command:

• 'pv': This is a command-line tool used for monitoring the progress of data through a pipeline. It stands for 'pipe viewer'.
• '$FILE': This is a placeholder for the path to the tar archive file you want to extract.
• '|': This is the pipe symbol, which is used to redirect the output of one command to another command.
• 'tar': This is the command-line tool used to manipulate tar archives.
• '-xJf': This is a combination of 'tar' options:
  • '-x': Extract files from the archive.
  • '-J': Decompress the archive using xz compression.
  • '-f': Specifies the input file.
• '-': This hyphen signifies that the 'tar' command should read from the standard input (piped data) instead of a file.
• '-C $DIR': Specifies the directory where the extracted files should be placed. '$DIR' is a placeholder for the destination directory.

Overall, this command will extract the contents of the tar archive file and place them in the specified directory.