rsync命令在命令行

Question

尝试运行“gsutil rsync”命令时出现此错误。下面的命令。我在VM实例上从头开始重新安装了Cloud SDK。应用kubectl组件。我是否放入一面旗帜，两面旗帜，三面旗帜。

# gsutil rsync -r -n /var/www/html/* gs://google-storage-bucket/alpha/$(date +%F)
CommandException: The rsync command accepts at most 2 arguments. Usage:

  gsutil rsync [-c] [-C] [-d] [-e] [-n] [-p] [-r] [-U] [-x] src_url dst_url

For additional help run:
  gsutil help rsync

即使我没有使用标记，我也会收到类似的错误。 （目标路径是已安装的gs：//版本 - 相同位置）

# gsutil rsync  /var/www/html/* /var/www/_backup/alpha/$(date +%F)
CommandException: The rsync command accepts at most 2 arguments. Usage:

  gsutil rsync [-c] [-C] [-d] [-e] [-n] [-p] [-r] [-U] [-x] src_url dst_url

For additional help run:
  gsutil help rsync

如果我试图单独执行gsutil rsync，我会收到类似的错误。

# gsutil rsync
CommandException: The rsync command requires at least 2 arguments. Usage:

  gsutil rsync [-c] [-C] [-d] [-e] [-n] [-p] [-r] [-U] [-x] src_url dst_url

For additional help run:
  gsutil help rsync

WTF gsutility！

正常RSYNC（不通过gsutil）吐出

# rsync /var/www/html/* /var/www/_backup/alpha/$(date +%F)

rsync: change_dir#3 "/var/www/_backup/alpha" failed: No such file or directory (2)
rsync error: errors selecting input/output files, dirs (code 3) at main.c(625) [Receiver=3.0.9]
rsync: connection unexpectedly closed (9 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(605) [sender=3.0.9]

Answer 1

您需要将/var/www/html/*更改为/var/www/html。原因有两方面：

1. gsutil rsync正在等待文件夹 （/var/www/html/*不是文件夹）
2. /var/www/html/*中的shell将expand the asterisk，因此您的命令行最终可能会有数十个甚至100个参数。