open a file or url in the user's preferred application

npm install open
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Open a file or url in the user's preferred application.


var open = require("open");

open taks an optional argument specifying the program to be used to open the file or URL.

open("", "firefox");


npm install open

How it works

  • on win32 uses start
  • on darwin uses open
  • otherwise uses the xdg-open script from


The same care should be taken when calling open as if you were calling child_process.exec directly. If it is an executable it will run in a new shell.

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