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Update README.md 

Added configuration and basic snapshotting instructions
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Jarno Rankinen 2020-08-01 20:19:47 +03:00 committed by GitHub
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# snapsh # snapsh
Btrfs snapshot managing bash script Btrfs snapshot managing bash script
###### Requirements: ### Requirements:
- `bash` - `bash`
- GNU `setopt` - part of GNU `coreutils` - GNU `setopt` - part of GNU `coreutils`
- `btrfs-progs`- Userspace programs for btrfs - `btrfs-progs`- Userspace programs for btrfs
### Instructions:
- Script needs the toplevel subvolume (id=5) mounted somewhere. Default location is `/root/btrfs-toplevel`, but you can mount it anywhere you like and define it with `TOPLEVEL` variable. (A separate config file will be implemented later).
- Will create a subvolume named snapshots by default to the toplevel. This can also be changed with `SNAPSHOTS_LOCATION`.
- Display usage instructions with `snapsh -h` or `snapsh --help`
- Taking snapshots requires root priviledges. Take a snapshot with `snapsh -s SUBVOLUME` or `snapsh --snapshot SUBVOLUME`, where `SUBVOLUME` is the name of the source subvolume. Example with Fedora default btrfs layout with `root` and `home` subvolumes: <br> `snapsh -s root` <br> This will create a snapshot called `root_snapshot_YYYY.MM.DD-hh:mm:ss` to the `snapshots` subvolume (or the one you defined with `SNAPSHOTS_LOCATION`)