In addition to all the capabilities of DSH, PSSH is able to copy files to and from a central server and kill processes across a bank of systems.

除了具备d sh的所有功能之外，pssh还可以把文件从一组系统复制到中心服务器或反向复制，以及杀死一组系统上的进程。

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dsh: This shell can run a shell command on many machines in parallel.

dsh：这个 shell 可以并行地在许多计算机上执行 shell 命令。

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Unlike DSH, the hosts are always named via a manifest, a file where each line takes the form host [: port] [user]. Here's how to run uptime across a swath of hosts with parallel-ssh.

与dsh不同，pssh总是通过清单文件指定主机，其中的每行采用host [： port] [user]形式。

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