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A semantics for Bash scripts?
...ing for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the state of the program -- is it a key-value assignment of strings to variable names; is t...
How can I use Homebrew to install both Python 2 and 3 on Mac?
...an install different versions of python and choose which one you can use. Example:
$ pyenv install 2.7.5
You can check the versions you have installed with:
$ pyenv versions
And you can switch between python versions with the command:
$ pyenv global 3.3.1
Also you can set a python version f...
How do I initialize a byte array in Java?
...
Using a function converting an hexa string to byte[], you could do
byte[] CDRIVES = hexStringToByteArray("e04fd020ea3a6910a2d808002b30309d");
I'd suggest you use the function defined by Dave L in Convert a string representation of a hex dump to a byte ar...
How do I exit the Vim editor?
...ottom of the screen and you can type in one of the following commands. To execute a command, press the Enter key.
:q to quit (short for :quit)
:q! to quit without saving (short for :quit!)
:wq to write and quit
:wq! to write and quit even if file has only read permission (if file does not have wr...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...has a transform (other than the default identity transform) - but that is exactly what autolayout does. The way autolayout works is that in layoutSubviews the runtime comes dashing through all the constraints and setting the frames of all the views accordingly.
In other words, the constraints are n...
Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...or me? My permissions are screwed up on my sites and I'm not sure how to fix them without just slamming a recursive 777 on everything which is quite obviously incorrect.
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How to install therubyracer gem on 10.10 Yosemite?
...clone https://github.com/cowboyd/libv8.git
cd libv8
bundle install
bundle exec rake clean build binary
gem install pkg/libv8-3.16.14.3-x86_64-darwin-12.gem #note that libv8 version may change, so tab through files in pkg/, also remember to use the one with version specified
then just bundle your p...
Find a value in an array of objects in Javascript [duplicate]
...ects, and I need to get the object where "name" is "string 1". Here is an example array.
20 Answers
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Appending the same string to a list of strings in Python
...contained in a list, and then have a new list with the completed strings. Example:
11 Answers
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Installing pip packages to $HOME folder
...talling pip , install the python packages inside my $HOME folder. (for example, I want to install mercurial , using pip , but inside $HOME instead of /usr/local )
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