move to multi-threads

.gitignore

 src/proxy_pwd
 src/hostlist.txt
+remote_logs/

bootstrap_remote.sh

@@ -45,8 +45,12 @@ else
   esac
 fi
 
+function execcmd() {
+  echo -e "Executing on \e[31m$1\e[0m ..."
+  ssh-copy-id root@$1 &>/dev/null && ssh root@$1 "$remote_command" &>remote_logs/$1.log
+  echo -e "Finished \e[31m$1\e[0m ..."
+}
+
 for remote_host in $(cat src/hostlist.txt | grep -vE "^#" | grep -vE ^$); do
-  echo -e "Executing on \e[31m$remote_host\e[0m ..."
-  ssh-copy-id root@$remote_host &>/dev/null && ssh root@$remote_host "$remote_command"
-  echo -e "Finished \e[31m$remote_host\e[0m ...\n"
+  execcmd $remote_host &
 done