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How can I have a newline in a string in sh?
...llo
World
Here is an excerpt from the Bash manual page:
Words of the form $'string' are treated specially. The word expands to
string, with backslash-escaped characters replaced as specified by the
ANSI C standard. Backslash escape sequences, if present, are decoded
as follows:
...
How do I print a double value without scientific notation using Java?
I want to print a double value in Java without exponential form.
14 Answers
14
...
To underscore or to not to underscore, that is the question
...ecessary.
So if you are just like .NET CoreFX team working on some performance critical, multithreaded, system level code, then it is STRONGLY SUGGESTED that you:
adhere to their coding standards and
use the underscore-notation and
don't read this answer any further
Otherwise please read on...
AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
...ed to send request data with a Content-Type other than
application/x-www-form-urlencoded, multipart/form-data, or text/plain,
e.g. if the POST request sends an XML payload to the server using
application/xml or text/xml, then the request is preflighted.
It sets custom headers in the request ...
Proper way to make HTML nested list?
...nds before the </li> of the containing list item. Nested lists often form the basis for website navigation menus, as they are a good way to define the hierarchical structure of the website.
Theoretically you can nest as many lists as you like, although in practice it can become confusing to n...
Why use apparently meaningless do-while and if-else statements in macros?
...
Note: the if(1) {...} else void(0) form is safer than the do {...} while(0) for macros whose parameters are code that is included in the macro expansion, because it doesn't alter the behavior of the break or continue keywords. For example: for (int i = 0; i &l...
What is difference between monolithic and micro kernel?
... well and were slow on context switches - that's what caused their poor performance.
Adding a new feature to a monolithic system means recompiling the whole kernel or the corresponding kernel module (for modular monolithic kernels), whereas with microkernels you can add new features or patches witho...
Strip HTML from strings in Python
...g to find a way to only show the contents of each HTML element and not the formatting itself. If it finds '<a href="whatever.com">some text</a>' , it will only print 'some text', '<b>hello</b>' prints 'hello', etc. How would one go about doing this?
...
What's the easiest way to install a missing Perl module?
... in your shell:
# cpan
and type
install Chocolate::Belgian
or in short form:
cpan Chocolate::Belgian
On Windows:
If you're using ActivePerl on Windows, the PPM (Perl Package Manager) has much of the same functionality as CPAN.pm.
Example:
# ppm
ppm> search net-smtp
ppm> install ...
Get a filtered list of files in a directory
... if any(fn.endswith(ext) for ext in included_extensions)]
I prefer this form of list comprehensions because it reads well in English.
I read the fourth line as:
For each fn in os.listdir for my path, give me only the ones that match any one of my included extensions.
It may be hard for novice...