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Which terminal command to get just IP address and nothing else?
...egular expressions or otherwise we can't use the lookbehind (?<=inet\s) token. You can get a similar result by running grep -oe 'inet [0-9\.]\+' or grep -oe 'inet6 [0-9a-f:]\+' but this way I can't get rid of the first word. In SuSE man grep reports that -P flag is experimental.
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Retrieve a single file from a repository
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wget 'https://github.abc.abc.com/raw/abc/folder1/master/folder2/myfile.py?token=DDDDnkl92Kw8829jhXXoxBaVJIYW-h7zks5Vy9I-wA%3D%3D' -O myfile.py
Curl example:
curl 'https://example.com/raw.txt' > savedFile.txt
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Append an object to a list in R in amortized constant time, O(1)?
... single operation occasionally takes much longer than normal (e.g. if a preallocated buffer is exhausted and occasionally requires resizing to a larger buffer size), as long as the long-term average performance is constant time, we'll still call it O(1).
For comparison, I will also describe "linear...
Best practices: throwing exceptions from properties
...t won't; it could easily be calling code that does. Even the simple act of allocating a new object (like a string) could result in exceptions. You should always write your code defensively and expect exceptions from anything you invoke.
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Cookie overflow in rails application?
...you're actually putting in cookies. If you need more than a couple of auth tokens, session ID's, and maybe a few layout/tracking cookies, you're living in the 90's.
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Is there a way to get the XPath in Google Chrome?
...luate XPath/CSS selectors and highlight matching nodes in the DOM.
Execute tokens $x("some_xpath") or $$("css-selectors") in Console panel, which will both evaluate and validate.
From Elements panel
Press F12 to open up Chrome DevTools.
Elements panel should be opened by default.
Press Ctrl + F t...
do {…} while(false)
...t way to FORCE a semicolon after the macro invocation, absolutely no other token is allowed to follow.
And another possibility is that there either once was a loop there or iteration is anticipated to be added in the future (e.g. in test-driven development, iteration wasn't needed to pass the tests...
How can I view MSIL / CIL generated by C# compiler? Why is it called assembly?
...hen ILDasm comes in handy because it can show you the raw structure of IL, token tables etc. Again, most non-IL experts will be confused by those, so ILSpy is probably all you want and need.
– Johannes Rudolph
Jul 26 '17 at 15:15
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Best TCP port number range for internal applications [closed]
...nts/service-names-port-numbers/service-names-port-numbers.txt look for the token Unassigned.
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Extracting bits with a single multiplication
...EFGHIJKLMNOP
The math we were going to do was
ABCDEFGHIJKLMNOP
a000e0b000d00c00
0b000d00c0000000
000d00c000000000
00c0000000000000 +
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abcded(b+c)0c0d00c00
Until now, we thought anything below abcde (positions ABCDE) would not matter, but in fact, as @Ternary pointed out, if b=1,...