Question

我使用rsync或scp传输非常大的文件。有时转移被中止所以我需要监控它并手动恢复它。你能帮我写一个脚本，它将恢复已中止或已完成的文件传输，但文件（源和目标）的大小不同（在这种情况下，传输将从头开始重新启动 - 首先它将删除目标文件和传输将重新启动）。有一点要提到的是，当我连接到源服务器时，我需要提供密码，所以我希望密码是脚本的参数

Answer 1

您需要-P和--partial选项。

从手册页：

--partial By default, rsync will delete any partially transferred file if the transfer
         is interrupted. In some circumstances it is more desirable to keep partially
         transferred files. Using the --partial option tells rsync to keep the partial
         file which should make a subsequent transfer of the rest of the file much faster.

  -P     The -P option is equivalent to --partial --progress.   Its  pur-
         pose  is to make it much easier to specify these two options for
         a long transfer that may be interrupted.

所以如果你想同步（继续同步）目录：

sudo rsync -azvvP /home/path/folder1/ /home/path/folder2

您可以在此处找到一些额外的信息：

Can rsync resume after being interrupted?

要自动恢复，只需循环运行：

RETRY_IN=5
while rsync -azvvP /home/path/folder1/ /home/path/folder2
do
   echo "Retrying in ${RETRY_IN} sec"
   sleep "${RETRY_IN}"
done

如果中止，则恢复文件传输

1 个答案: