Search lsof

Discover What Apps or Processes are Interacting with a File in Mac OS X

Jan 13, 2012 - 3 Comments
Watch what apps are using a file with lsof or opensnoop

Using the lsof command, we can find out exactly what process or application is using a specified file at that given moment. This is similar to the opensnoop command, but rather than watching the changes to a file over time, lsof can give us a snapshot of this very moment, which can be helpful for … Read More

Display a List of Open Network Connections on the Mac OS X Desktop

Jul 11, 2011 - 10 Comments
Display open network connections on Mac OS X desktop

Using GeekTool and lsof, you can display an automatically updated list of open network connections directly on a Mac OS X desktop. This is tip is a “safe” alternative to the previously mentioned open_ports utility. The problem with installing and using open_ports is that it is a third party script running as root, and for … Read More

Show What Apps & Processes Are Using an Internet Connection via Command Line in Mac OS X

Apr 29, 2011 - 3 Comments
Mac Wi-Fi Tool

Much like you can monitor Mac OS X filesystem usage through the command line, you can also discover what apps and individual processes are currently using your Macs internet connection. This is a really handy trick if you know your bandwidth is being used by something, or if you’re just trying to track down what … Read More

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