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Test if a command outputs an empty string
How can I test if a command outputs an empty string?
11 Answers
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RESTful web service - how to authenticate requests from other services?
...essed by users, but also other web services and applications. All of the incoming requests need to be authenticated. All communication takes place over HTTPS. User authentication is going to work based on an authentication token, acquired by POSTing the username and password (over an SSL connection)...
C++ static virtual members?
Is it possible in C++ to have a member function that is both static and virtual ? Apparently, there isn't a straightforward way to do it ( static virtual member(); is a compile error), but is there at least a way to achieve the same effect?
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Comprehensive beginner's virtualenv tutorial? [closed]
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Here's another good one: http://www.saltycrane.com/blog/2009/05/notes-using-pip-and-virtualenv-django/
This one shows how to use pip and a pip requirements file with virtualenv; Scobal's two suggested tutorials are both very helpful but are both easy_insta...
Run/install/debug Android applications over Wi-Fi?
...etcfg. You'll see it there.
To find the IP address while using OSX run the command adb shell ip route.
WARNING: leaving the option enabled is dangerous, anyone in your network can connect to your device in debug, even if you are in data network. Do it only when connected to a trusted Wi-Fi and re...
How do I get the name of the active user via the command line in OS X?
How do I get the name of the active user via the command line in OS X?
12 Answers
12
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How to make a great R reproducible example
...use one of the built-in datasets, which are provided with most packages.
A comprehensive list of built-in datasets can be seen with library(help = "datasets"). There is a short description to every dataset and more information can be obtained for example with ?mtcars where 'mtcars' is one of the dat...
.rar, .zip files MIME Type
...the former matching is correct, for the latter IANA reports here https://www.iana.org/assignments/media-types/application/vnd.rar that for rar application/x-rar-compressed is a deprecated alias name and instead application/vnd.rar is the official one.
So, right Media Types from IANA in 2020 are:
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How do you Encrypt and Decrypt a PHP String?
...m advice in this answer.
Use libsodium if you have PECL access (or sodium_compat if you want libsodium without PECL); otherwise...
Use defuse/php-encryption; don't roll your own cryptography!
Both of the libraries linked above make it easy and painless to implement authenticated encryption into you...