Execute script ou comandos remotos em múltiplos servidores. Necessário chave de autenticação.

run-remote-script.sh

#!/bin/bash

SERVERS=(host01 host02 host03);

echo "##################";
echo "# Header Example #";
echo -e "##################\n";
echo -e "Run on: $(date '+%F - %T')\n"

for i in "${!SERVERS[@]}"
do
  OUTPUT=$(ssh -q -oStrictHostKeyChecking=no username@${SERVERS[i]} "./my-script.sh" 2> /dev/null)

  STATUS=$?

  if [[ $STATUS -eq 0 ]];
  then
    echo -e "${SERVERS[i]}:\n$OUTPUT\n";
  elif [[ $STATUS -eq 127 ]];
  then
    echo -e "${SERVERS[i]}: ERROR => SCRIPT \"my-script.sh\" NOT FOUND!\n";
  else
    echo -e "${SERVERS[i]}: UNDETERMINED SSH ERROR!\n";
  fi

done