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lsof survival guide [closed]
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To show all networking related to a given port:
lsof -iTCP -i :port
lsof -i :22
To show connections to a specific host, use @host
lsof -i@192.168.1.5
Show connections based on the host and the port using @host:port
lsof -i@...
Where is the “Fold” LINQ Extension Method?
I found in MSDN's Linq samples a neat method called Fold() that I want to use. Their example:
2 Answers
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Detect if a page has a vertical scrollbar?
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I have report page on Chrome browser where it initially displays a scroll bar and vanishes in a matter of milliseconds which looks like a browser behaviour since I did not programme it. So this function return true always in my case..
– Dush
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UIActivityViewController crashing on iOS 8 iPads
...image];
UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:postItems applicationActivities:nil];
//if iPhone
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
[self presentViewController:controller animated:YES completion:nil];
}
//if iPa...
How to pass a view's onClick event to its parent on Android?
...e appropriate components:
Activity.dispatchTouchEvent(MotionEvent) - This allows your Activity to intercept all touch events before they are dispatched to the window.
ViewGroup.onInterceptTouchEvent(MotionEvent) - This allows a ViewGroup to watch events as they are dispatched to child Views.
View...
How can I display a list view in an Android Alert Dialog?
...this items? i'm looking for hours for a popup menu solution which works on all api levels
– wutzebaer
Jul 22 '13 at 21:31
7
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JSON to pandas DataFrame
...t[u'location']
Rebuild json string :
elevations = json.dumps(data)
Finally :
pd.read_json(elevations)
You can, also, probably avoid to dump data back to a string, I assume Panda can directly create a DataFrame from a dictionnary (I haven't used it since a long time :p)
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Jackson enum Serializing and DeSerializer
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I really dislike this solution for the simple fact that you introduce two sources of truth. The developer will always have to remember to add the name in two places. I much prefer a solution that just does the right thing without...
How to write multiple line string using Bash with variables?
How can I write multi-lines in a file called myconfig.conf using BASH?
6 Answers
6
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Base64 length calculation?
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I explained all this in the answer above: (i) each output char represents 6 bits of input, (ii) 4 output chars therefore represent 4 * 6 = 24 bits, (iii) 24 bits is 3 bytes, (iv) 3 bytes of input therefore result in 4 chars of output, (...