BTRFS(8) Btrfs Manual BTRFS(8) 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 subvolume Create/delete/list/manage btrfs subvolume. See btrfs-subvolume(8) for details. filesystem Manage a btrfs filesystem, including label setting/sync and so on. See btrfs-filesystem(8) for details. [filesystem] balance Balance btrfs filesystem chunks across single or several devices. See btrfs-balance(8) for details. device Manage devices managed by btrfs, including add/delete/scan and so on. See btrfs-device(8) for details. scrub Scrub a btrfs filesystem. See btrfs-scrub(8) for details. check Do off-line check on a btrfs filesystem. See btrfs-check(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. inspect-internal Debug tools for developers/hackers. See btrfs-inspect-internal(8) for details. send Send subvolume data to stdout/file for backup and etc. See btrfs-send(8) for details. receive Receive subvolume data from stdin/file for restore and etc. See btrfs-receive(8) for details. quota Manage quota on btrfs filesystem like enabling/rescan and etc. See btrfs-quota(8) and btrfs-qgroup(8) for details. qgroup Manage quota group(qgroup) for btrfs filesystem. See btrfs-qgroup(8) for details. replace Replace btrfs devices. See btrfs-replace(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-subvolume(8), btrfs-filesystem(8), btrfs-balance(8), btrfs-device(8), btrfs-scrub(8), btrfs-check(8), btrfs-rescue(8), btrfs-restore(8), btrfs-inspect-internal(8), btrfs-send(8), btrfs-receive(8), btrfs-quota(8), btrfs-qgroup(8), btrfs-replace(8), Btrfs v3.17 11/22/2014 BTRFS(8)
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