pdsh

Parallel remote shell utility for executing commands on multiple hosts

brewmacoslinux

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Efficient rsh-like utility, for using hosts in parallel

pdshpdcpdshbak

Execute a command on multiple hosts in parallel$ pdsh -w host1,host2,host3 'uptime'

Copy a file to multiple remote hosts$ pdcp -w host[1-5] /local/file /remote/path/

Run command on hosts and format output by hostname$ pdsh -w host1,host2 'df -h' | dshbak -c