开源最前线（ID：OpenSourceTop） 猿妹综合整理项目地址：https://github.com/restic/restic
备份软件已经是一个老生常谈的话题了，今天，猿妹要和大家分享一个备份工具——restic。Restic是一种快速、高效、免费和开源的备份应用程序，它通过AES-256加密保护你的数据，Restic 还利用重复数据删除来帮助节省备份空间。此外，Restic 与大多数主要的云提供商兼容，支持三大操作系统（Linux、macOS、Windows）和一些较小的操作系统（FreeBSD、OpenBSD）。
目前，Restic已经在Github上标星 14.6K，累计分支 999 个（Github地址：https://github.com/restic/restic）首先，你可以从源代码编译restic或从发布页面下载它。一旦安装好restic，就可以开始备份：
$ restic init --repo /tmp/backup
enter password for new backend:
enter password again:
created restic backend 085b3c76b9 at /tmp/backup
Please note that knowledge of your password is required to access the repository.
Losing your password means that your data is irrecoverably lost.
$ restic --repo /tmp/backup backup ~/work
enter password for repository:
scan [/home/user/work]
scanned 764 directories, 1816 files in 0:00
[0:29] 100.00% 54.732 MiB/s 1.582 GiB / 1.582 GiB 2580
/ 2580 items 0 errors ETA 0:00
duration: 0:29, 54.47MiB/s
snapshot 40dc1520 saved
接下来，你可以restic restore用于恢复文件，要获取所有备份快照的列表，可以使用以下的命令：
restic -r b2:bucketname:/ snapshots
$ restic -r b2:g534fbucket:/ snapshots
enter password for repository:
ID Date Host Tags Directory
----------------------------------------------------------------------
d864c465 2018-03-27 15:20:42 client /home/curt/Documents
restic -r b2:bucketname:/ restore snapshotID --target restoreDirectory
$ restic -r b2:g534fbucket:/ restore d864c465 --target ~
enter password for repository:
restoring <Snapshot d864c465 of [/home/curt/Documents] at 2018-03-27 15:20:42.833131988 -0400 EDT by curt@client> to
/home/curt
如果该目录仍然存在于你的系统上，请确保为restoreDirectory指定不同的位置。例如：
restic -r b2:g534fbucket:/ restore d864c465 --target /tmp
$ restic -r b2:g534fbucket:/restore snapshotID --target restoreDirectory --include filename
$ restic -r b2:g534fbucket:/ restore d864c465 --target /tmp --include file1.txt
enter password for repository:
restoring <Snapshot d864c465 of [/home/curt/Documents] at 2018-03-27 15:20:42.833131988 -0400 EDT by curt@client> to /tmp
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