#!/bin/sh
# sends a command to every host in parallel and collects its output 
# in individual files per host which can be grepped and post-processed.
# The files are contained within a directory named by the process number.

echo Job id: $$
mkdir $$
date > $$/Command
echo $@ >> $$/Command
#for i in `cat hosts-swap`
for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 # 37 38 39
do
  (ssh gaia$i "$@" >> $$/node-`printf %02d $i` 2>&1) &
# Use the following variant, if you prefer the output files to be named
# exactly as the hostname.
#  (ssh $i "$@" >> $$/$i 2>&1) & 
done