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54
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1 #!/bin/bash
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2 if [ $# -lt 1 ]
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3 then
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4 cat 1>&2 <<EOF
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5 Usage: $0 [-h sshHostFile] cmd [...args]
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6 Where SSname is the name of a VM scale set.
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7 sshHostFile (defaults to $WORKERS) is the name of a file in
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8 .parallel which lists hosts and ports, see man parallel for details
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9
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10 Runs cmds/cmdlines on every machine in a scale set,
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11 using parallel --nonall
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12
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13 cmd+args can be quoted to run over multiple lines
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14
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15 Use xargs $0... to get multiple args from stdin, e.g.
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16 > xargs $0 W4 echo
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17 hello
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18 world
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19 ^D
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20 hello world
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21 hello world
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22 ...
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23
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24 Do
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25 > echo 'will cite' | parallel --citation 2>/dev/null
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26 to turn off citation prompt
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27 EOF
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28 exit 1
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29 fi
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30 if [ $1 = -h ]
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31 then
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32 shift
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33 shf="$1"
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34 shift
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35 else
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36 shf=$WORKERS
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37 fi
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38 parallel --sshloginfile $shf --nonall "$@"
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39
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40
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41
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