install-on-all

#!/bin/bash
#
# installs software on all machines

usage () { echo "$0 usage: " && grep " .)\ #" $0; exit 0; }
while getopts "a:c:h" arg; do
  case $arg in
    a) # possible action: install|remove
      echo "action: ${OPTARG}"
      ACTION="install"
      ;;
    c) # name of package
      echo "command: ${OPTARG}"
      PACKAGE="${OPTARG}"
      ;;
    h | *)
      usage
      exit 0
      ;;
  esac
done

for node in europa.local io.local ganymede.local callisto.local titan.local phobos.local pi@pi-hole.local
do
  echo '************************************'
  echo "         $node"
  echo '************************************'
  echo connecting ...
  ssh $node "uname -a ; sudo apt-get -y ${ACTION} ${PACKAGE}"
  echo '************************************'
  echo "         $node done"
  echo '************************************'
done