btrfs-snapshot-rotation

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btrfs-snapshot: Take and rotate snapshots on a btrfs file system

Usage: btrfs-snapshot source target snap_name count [-q]

source: path to make snapshot of target: snapshot directory snap_name: Base name for snapshots, to be appended to date "+%F--%H-%M-%S" count: Number of snapshots in the timestamp-@snap_name format to keep at one time for a given snap_name. [-q]: Be quiet.

Example for crontab: 15,30,45 * * * * root /usr/local/bin/btrfs-snapshot / /.btrfs quarterly 4 -q 0 * * * * root /usr/local/bin/btrfs-snapshot / /.btrfs hourly 8 -q

Example for anacrontab: 1 10 daily_snap /usr/local/bin/btrfs-snapshot / /.btrfs daily 8 7 30 weekly_snap /usr/local/bin/btrfs-snapshot / /.btrfs weekly 5 @monthly 90 monthly_snap /usr/local/bin/btrfs-snapshot / /.btrfs monthly 3

FAQ:

1. I get an error like "btrfs subvolume snapshot SOURCE DESTINATION: line 77: btrfs: command not found" Please make sure the btrfs command is in your PATH (e.g. in Debian it is not in cron's default PATH)