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Who is listening on a given TCP port on Mac OS X?
...or displaying raw port numbers instead of resolved names like http, ftp or more esoteric service names like dpserve, socalia.
See the comments for more options.
For completeness, because frequently used together:
To kill the PID:
kill -9 <PID>
# kill -9 60401
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How can I get my webapp's base URL in ASP.NET MVC?
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How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
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How to allow to accept only image files?
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I keep getting “Uncaught SyntaxError: Unexpected token o”
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Using R to download zipped data file, extract, and import data
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Zip archives are actually more a 'filesystem' with content metadata etc. See help(unzip) for details. So to do what you sketch out above you need to
Create a temp. file name (eg tempfile())
Use download.file() to fetch the file into the temp. file...
How to use the PI constant in C++
..._PI 3.14159265358979323846 /* pi */
but check your math.h for more. An extract from the "old" math.h (in 2009):
/* Define _USE_MATH_DEFINES before including math.h to expose these macro
* definitions for common math constants. These are placed under an #ifdef
* since these commonly-...
How to run mvim (MacVim) from Terminal?
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How to change Status Bar text color in iOS
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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...an be achieved by three different approaches (see my blog article here for more details):
Search in Elements panel like below
Execute $x() and $$() in Console panel, as shown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how...