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Remove first element from $@ in bash [duplicate]
...eeded: if there is only 1 argument, ${@:2} will simply expand to the empty string (cont'd).
– mklement0
Apr 9 '14 at 5:05
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Delete files older than 15 days using PowerShell
...is in the title of this post), but here's some code that will first delete all of the files older than 15 days, and then recursively delete any empty directories that may have been left behind. My code also uses the -Force option to delete hidden and read-only files as well. Also, I chose to not use...
Python: reload component Y imported with 'from X import Y'?
... verse (import this from interactive prompt to see the Zen of Python); and all the reasons why namespaces are a honking great idea (immediate local visual clues that the name's being looked up, ease of mocking/injecting in tests, ability to reload, ability for a module to change flexibly by redefini...
How to exit in Node.js
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Call the global process object's exit method:
process.exit()
From the docs:
process.exit([exitcode])
Ends the process with the specified code. If omitted, exit uses the 'success' code 0.
To exit with a 'failure' code:
proces...
Haskell: Where vs. Let
...eptual difference in whether you want to put the main formula upfront with extra variables defined below (where) or whether you want to define everything upfront and put the formula below (let). Each style has a different emphasis and you see both used in math papers, textbooks, etc. Generally, vari...
How can I convert a PFX certificate file for use with Apache on a linux server?
... pkcs12 -in domain.pfx -nocerts -nodes -out domain.key
First command extracts public key to domain.cer.
Second command extracts private key to domain.key.
Update your Apache configuration file with:
<VirtualHost 192.168.0.1:443>
...
SSLEngine on
SSLCertificateFile /path/to/domain.c...
UINavigationBar Hide back Button Text
... the navigation item of the previous controller and change the Back Button string to what you'd like the back button to appear as. If you want it blank, for example, just put a space.
You can also change it with this line of code:
[self.navigationItem.backBarButtonItem setTitle:@"Title here"];
Or...
How to work with complex numbers in C?
...h:
creal(z1): get the real part (for float crealf(z1), for long double creall(z1))
cimag(z1): get the imaginary part (for float cimagf(z1), for long double cimagl(z1))
Another important point to remember when working with complex numbers is that functions like cos(), exp() and sqrt() must be repl...
How can I keep Bootstrap popovers alive while being hovered?
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Test with code snippet below:
Small modification (From the solution provided by vikas) to suit my use case.
Open popover on hover event for the popover button
Keep popover open when hovering over the popover box
Close popover on mouseleave for either the ...
Javascript “this” pointer within nested function
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In JavaScript the this object is really based on how you make your function calls.
In general there are three ways to setup the this object:
someThing.someFunction(arg1, arg2, argN)
someFunction.call(someThing, arg1, arg2, argN)
someFunction.apply(someThing...