title: How to show online offline status on Unix via putty
body: <p>How can i show online offline status of a network ( such as "ftp" ) on Unix via putty ?</p>
  
  <p>for example in solaris , we can type " svcs -a " command and then use "grep" to see the online &amp; offline status of specific services. How can i see these statuses one by one on Unix ?</p>