小编Ale*_*nyk的帖子

美好的一天，我一整天都在阅读类似的主题，但不幸的是找不到适合我情况的答案。所以这就是我想要做的。我有很多函数的 shell 脚本，其中一个函数假设调用 ssh-agent：

sh_agent_run () {
 case "$(pidof ssh-agent | wc -w)" in
  0)  echo "SSH agent is not running. Startting SSH agent."
      eval `ssh-agent -s`
      ssh-add ${ssh_key}
      ;;
  1)  echo "SSH agent is running. Nothing to do."
      ;;
  *)  echo "Too much instances of SSH agent is running. Stopping SSH agent instances and running just one"
    while pidof ssh-agent; do
      echo "Stopping ssh-agent..."
      killall -9 ssh-agent
      sleep 1
    done
    echo "Starting valid SSH agent instance"
    eval `ssh-agent -s` …