pssh

pssh

TLDR

Run a command on two hosts, and print its output on each server inline

$ pssh -i -H "[host1] [host2]" [hostname -i]
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Run a command and save the output to separate files
$ pssh -H [host1] -H [host2] -o [path/to/output_dir] [hostname -i]
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Run a command on multiple hosts, specified in a new-line separated file
$ pssh -i -h [path/to/hosts_file] [hostname -i]
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Run a command as root (this asks for the root password)
$ pssh -i -h [path/to/hosts_file] -A -l [root_username] [hostname -i]
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Run a command with extra SSH arguments
$ pssh -i -h [path/to/hosts_file] -x "[-O VisualHostKey=yes]" [hostname -i]
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Run a command limiting the number of parallel connections to 10
$ pssh -i -h [path/to/hosts_file] -p [10] '[cd dir; ./script.sh; exit]'
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