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Grep regex NOT containing string
I am passing a list of regex patterns to grep to check against a syslog file. They are usually matching an IP address and log entry;
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What's the difference between tag and release?
Using GitHub's API, I can't get the releases list, but I can get the tags list.
1 Answer
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How to make a flat list out of list of lists?
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Given a list of lists l,
flat_list = [item for sublist in l for item in sublist]
which means:
flat_list = []
for sublist in l:
for item in sublist:
flat_list.append(item)
is faster than the shortcuts posted s...
Find row where values for column is maximal in a pandas DataFrame
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Use the pandas idxmax function. It's straightforward:
>>> import pandas
>>> import numpy as np
>>> df = pandas.DataFrame(np.random.randn(5,3),columns=['A','B','C'])
>>> df
A B C
0 1.232853 -1.979459 -0.5...
new DateTime() vs default(DateTime)
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Hidden features of C
...nction pointers. You can use a table of function pointers to implement, e.g., fast indirect-threaded code interpreters (FORTH) or byte-code dispatchers, or to simulate OO-like virtual methods.
Then there are hidden gems in the standard library, such as qsort(),bsearch(), strpbrk(), strcspn() [the ...
D3.js: How to get the computed width and height for an arbitrary element?
I need to know exactly the width and height for an arbitrary g element in my SVG because I need to draw a selection marker around it once the user has clicked it.
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How to execute maven plugin execution directly from command line?
I have a plugin (antrun) with an execution configured which has an id and is not bound to any phase. Can I execute this execution directly from the command line?
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Detect whether there is an Internet connection available on Android [duplicate]
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The getActiveNetworkInfo() method of ConnectivityManager returns a NetworkInfo instance representing the first connected network interface it can find or null if none of the interfaces are connected. Checking if this method retur...
Change Circle color of radio button
I want to change the color of the circle of RadioButton in one of my project , I could not understand which property to set. The background color I am having is black so it gets invisible. I want to set the color of the circle to white.
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