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How to append contents of multiple files into one file
...py the contents of five files to one file as is. I tried doing it using cp for each file. But that overwrites the contents copied from the previous file. I also tried
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How to get the last N rows of a pandas DataFrame?
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Don't forget DataFrame.tail! e.g. df1.tail(10)
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What's the need of array with zero elements?
...ered a hack (as Aniket said), but it was standardized in C99. The standard format for it now is:
struct bts_action {
u16 type;
u16 size;
u8 data[];
} __attribute__ ((packed)); /* Note: the __attribute__ is irrelevant here */
Note that you don't mention any size for the data field. ...
How to read and write INI file with Python3?
...config.set('section_b', 'not_found_val', str(404))" because the parameters for "set" have to be strings. Excellent example, thanks!
– Mr Ed
Dec 29 '18 at 13:42
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get current url in twig template?
I looked around for the code to get the current path in a Twig template (and not the full URL), i.e.
I don't want http://www.sitename.com/page , I only need /page .
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C++ project organisation (with gtest, cmake and doxygen)
... a library as opposed to an actual application. Your headers are the
basis for users to interact with what you offer and must be
installed. This means they have to be in a subdirectory (no-one wants
lots of headers ending up in top-level /usr/include/) and your
headers must be able to include themse...
Is there a built-in function to print all the current properties and values of an object?
So what I'm looking for here is something like PHP's print_r function.
25 Answers
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How do you round a floating point number in Perl?
... floor()?
Trig functions?
Remember that int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implements
ce...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...sents the memory structure of objects beyond the current compilation unit (for example: a foreign library, a file on disc, network data, CPU page tables, ...). In such a case the binary structure of data is also defined in a place inaccessible to the compiler, so reordering the struct fields would c...
Why is __dirname not defined in node REPL?
...on't need to import core modules in the REPL; it will load them on the fly for you.
– c24w
Oct 31 '19 at 12:15
This gi...