Manpage/btrfs
Contents |
btrfs(8) Manual Page
NAME
btrfs - control a btrfs filesystem
SYNOPSIS
btrfs <command> [<args>]
DESCRIPTION
btrfs is used to control the filesystem and the files and directories stored. It is the tool to create or destroy a snapshot or a subvolume for the filesystem, to defrag a file or a directory, flush the data to the disk, to resize the filesystem, to scan the device.
It is possible to abbreviate the commands unless the commands are ambiguous. For example: it is possible to run btrfs sub snaps instead of btrfs subvolume snapshot. But btrfs file s is not allowed, because file s may be interpreted both as filesystem show and as filesystem sync.
If a command is terminated by --help, the detailed help is showed. If the passed command matches more commands, detailed help of all the matched commands is showed. For example btrfs dev --help shows the help of all device* commands.
COMMANDS
- balance
- Balance btrfs filesystem chunks across single or several devices.
See btrfs-balance(8) for details. - check
- Do off-line check on a btrfs filesystem.
See btrfs-check(8) for details. - device
- Manage devices managed by btrfs, including add/delete/scan and so on.
See btrfs-device(8) for details. - filesystem
- Manage a btrfs filesystem, including label setting/sync and so on.
See btrfs-filesystem(8) for details. - inspect-internal
- Debug tools for developers/hackers.
See btrfs-inspect-internal(8) for details. - property
- Get/set a property from/to a btrfs object.
See btrfs-property(8) for details. - qgroup
- Manage quota group(qgroup) for btrfs filesystem.
See btrfs-qgroup(8) for details. - quota
- Manage quota on btrfs filesystem like enabling/rescan and etc.
See btrfs-quota(8) and btrfs-qgroup(8) for details. - receive
- Receive subvolume data from stdin/file for restore and etc.
See btrfs-receive(8) for details. - replace
- Replace btrfs devices.
See btrfs-replace(8) for details. - rescue
- Try to rescue damaged btrfs filesystem.
See btrfs-rescue(8) for details. - restore
- Manage a btrfs filesystem, including label setting/sync and so on.
See btrfs-restore(8) for details. - scrub
- Scrub a btrfs filesystem.
See btrfs-scrub(8) for details. - send
- Send subvolume data to stdout/file for backup and etc.
See btrfs-send(8) for details. - subvolume
- Create/delete/list/manage btrfs subvolume.
See btrfs-subvolume(8) for details.
EXIT STATUS
btrfs returns a zero exit status if it succeeds. Non zero is returned in case of failure.
AVAILABILITY
btrfs is part of btrfs-progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.
SEE ALSO
mkfs.btrfs(8), ionice(1), btrfs-balance(8), btrfs-check(8), btrfs-device(8), btrfs-filesystem(8), btrfs-inspect-internal(8), btrfs-property(8), btrfs-qgroup(8), btrfs-quota(8), btrfs-receive(8), btrfs-replace(8), btrfs-rescue(8), btrfs-restore(8), btrfs-scrub(8), btrfs-send(8), btrfs-subvolume(8),
