btrfsctl man page on Scientific

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BTRFSCTL(8)							   BTRFSCTL(8)

NAME
       btrfsctl - control a btrfs filesystem

SYNOPSIS
       btrfsctl	 [  -d	file|directory	] [ -s snapshot-name directory ] [  -S
       subvolume-name directory ] [  -r [+-]size ] [  -A device ] [   -a  ]  [
       -c ]

NOTE
       B  btrfsctl is deprecated. Please consider to switch to the btrfs util‐
       ity.

DESCRIPTION
       btrfsctl is used to control the filesystem and the files	 and  directo‐
       ries  stored.  It is the tool to create a new snapshot for the filesys‐
       tem.

OPTIONS
       -d file|directory
	      Defragment a file or a directory. If the argument	 is  a	direc‐
	      tory, the entire b-tree under the directory is defragged.

       -s snapshot-name directory
	      Creates a new snapshot of the directory specified.

       -S subvolume-name directory
	      Creates a new subvolume.

       -r [+|-]size
	      Resizes  the filesystem with the size specified. If the value is
	      preceded with a signed symbol, the filesystem  is	 resized  with
	      respect  to the current filesystem size. size can be suffixed by
	      k,m or g to represent kilobytes, megabytes, or gigabytes respec‐
	      tively.

       -A device
	      Scans the device for btrfs filesystem.

       -a     Scans all devices present in the system for btrfs filesystem.

       -c     Forces a filesystem sync.

AVAILABILITY
       btrfsctl	 is part of btrfs-progs. Btrfs is currently under heavy devel‐
       opment, and not suitable for  any  uses	other  than  benchmarking  and
       review.	 Please	 refer	to the btrfs wiki http://btrfs.wiki.kernel.org
       for further details.

SEE ALSO
       mkfs.btrfs(8)

								   BTRFSCTL(8)
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