TLDR
Enter a command. For example: check language support, phpdismod.

btrfs version

 
Display btrfs-progs version. More information: https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs.
 
  • Display btrfs-progs version:
     
    btrfs version
     
  • Display help:
     
    btrfs version --help

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