74 lines
1.5 KiB
Bash
Executable File
74 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# cluster-run.sh, Copyright © 2013 Matteo Cypriani <mcy@lm7.fr>
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#
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# This program is free software. It comes without any warranty, to
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# the extent permitted by applicable law. You can redistribute it
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# and/or modify it under the terms of the Do What The Fuck You Want
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# To Public License, Version 2, as published by Sam Hocevar. See
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# http://sam.zoy.org/wtfpl/COPYING for more details.
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#
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# Run a command on a list of remote hosts using Parallel SSH.
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#set -x
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print_usage()
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{
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echo "Usage: $0 [-l login] <hosts_list> <command>"
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}
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# Parse the optional arguments with getopt
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export POSIXLY_CORRECT=yes
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export GETOPT_COMPATIBLE=yes
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OPTSTRING="l:"
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ARGS=$(getopt $OPTSTRING $*)
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if [ $? -ne 0 ] ; then
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print_usage
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exit 1
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fi
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set -- $ARGS
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while [ $# -ne 0 ] ; do
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case "$1" in
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-l)
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LOGIN="$2"
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shift
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shift
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;;
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--)
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shift
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break
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;;
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*)
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echo "Unknown argument:" $1
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exit 2
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esac
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done
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# Do we have at least a host list and a command?
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if [ $# -lt 2 ] ; then
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print_usage
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exit 3
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fi
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# Check dependencies
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PSSH=$(command -v parallel-ssh || command -v pssh)
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if [ "$PSSH" = "" ] ; then
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echo "Parallel SSH (pssh) is required for this script to work."
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exit 4
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fi
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# Hosts' list file
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HOSTS="$HOME/.config/cluster/$1.lst"
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shift
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echo "Using file '$HOSTS' as hosts' list."
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# Login
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if [ "$LOGIN" != "" ] ; then
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echo "Login: $LOGIN"
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LOGIN="-l $LOGIN"
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fi
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echo "Command:" "$@"
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exec $PSSH --print $LOGIN -h "$HOSTS" -- "$@"
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