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Getting “Warning! PATH is not properly set up” when doing rvm use 2.0.0 --default
...or equivalent for your default shell) is read and interpreted line-by-line from top to bottom.
So imagine the following scenario :
$ echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
$ [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
/Users/...
linux tee is not working with python?
...op.
I want to log every communication data to a file and also monitor them from terminal at same time. so I used tee command like this.
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do..end vs curly braces for blocks in Ruby
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From Programming Ruby:
Braces have a high precedence; do has a low precedence. If the method invocation has parameters that are not enclosed in parentheses, the brace form of a block will bind to the last parameter, not t...
Test if string is a number in Ruby on Rails
...ic?, to stay in line with ruby naming conventions (Numeric classes inherit from Numeric, is_ prefixes are javaish).
– Konrad Reiche
Jun 24 '12 at 18:34
10
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How to check if Location Services are enabled?
...rvices: that one which shows a dialog where you may turn on your gps right from the dialog, without showing the settings activity. When user turns gps from that dialog, that statement returns always false, even when gps is on
– Marcelo Noguti
Sep 18 '15 at 14:2...
How to run multiple DOS commands in parallel?
...own command prompt and allow you to run multiple commands at the same time from one batch file.
Hope this helps!
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Why do we need C Unions?
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@spin_eight: It's not "converting" from float to int. More like "reinterpreting the binary representation of a float as if it were an int". The output is not 3: ideone.com/MKjwon I'm not sure why Adam is printing as hex, though.
– endo...
Having the output of a console application in Visual Studio instead of the console
...he Immediate Window". Then go to your project settings and change the type from "Console Application" to "Windows Application". At that point Visual Studio does not open up a console window anymore, and the output is redirected to the Output window in Visual Studio. However, you cannot do anything "...
Is it worthwile to learn assembly language? [closed]
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I learned from Kip Irvine's book. If you ignore the (fair) criticisms of his (irrelevant) libraries, I can recommend it as a good introduction to the language itself -- although for the really interesting stuff you have to hunt out obs...
How big can a MySQL database get before performance starts to degrade
...formance again, at least to a certain degree. For example 37 signals went from 32 GB RAM to 128GB of RAM for the Basecamp database server.
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