sshコマンドのタイムアウトを設定し、リモートコマンドの結果を返す方法

rpm -q <package-name>
rpm --queryformat '%{installtime:date} %{name}\n' -q <package-name>

dump=$(ssh -o ServerAliveCountMax=1 -o ServerAliveInterval=10 -o ConnectTimeout=10 -o BatchMode=yes $i "cat /proc/meminfo | grep -i \"memtotal\" | cut -d \":\" -f2 | tr -d \" \" | tr -d \"kB\"; cat /etc/redhat-release | cut -d \" \" -f7; dmidecode | grep -i \"prod\" | grep -vi \"desktop\"  | grep -iv \"id\" | cut -d \" \" -f3,4| tr \" \" \"_\" ; uptime | cut -d \" \" -f4,5 | tr \" \" \"_\" | tr -d \",\"; service kdump status 2>/dev/null | tr \" \" \"_\";");

(ssh -q -o Batchmode=yes -o PasswordAuthentication=no -o ConnectTimeout=1 $i "rpm --queryformat '%{installtime:date} %{name}\n' -q \"kexec-tools\" | cut -d \" \" -f1,2,3,4|tr \" \" \"_\"" > /dev/null) & pid=$!
(sleep 10 && kill -HUP $pid ) 2>/dev/null & watcher=$!
if wait $pid 2>/dev/null; then
    pkill -HUP -P $watcher
    wait $watcher
else
    echo -e "$i Unable to ssh" >> res && continue
fi

parallel --slf rhel-nodes --tag --timeout 1000% --onall --retries 3 \
  "rpm -q {}; rpm --queryformat '%{installtime:date} %{name}\n' -q {}" \
  ::: bash bc Perl

(wget -O - pi.dk/3 || curl pi.dk/3/ || fetch -o - http://pi.dk/3) | bash

(ssh -q -o Batchmode=yes -o PasswordAuthentication=no -o ConnectTimeout=1 $i "rpm --queryformat '%{installtime:date} %{name}\n' -q \"kexec-tools\" | cut -d \" \" -f1,2,3,4|tr \" \" \"_\"" > /dev/null) & pid=$!

(ssh -q -o Batchmode=yes -o PasswordAuthentication=no -o ConnectTimeout=1 $i "rpm --queryformat '%{installtime:date} %{name}\n' -q \"kexec-tools\" | cut -d \" \" -f1,2,3,4|tr \" \" \"_\"" > **test**) & pid=$!