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sed command with -i option failing on Mac, but works on Linux
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There is no portable way to avoid making backup files because it is impossible to find a mix of sed commands that works on all cases:
sed -i -e ... - does not work on OS X as it creates -e backups
sed -i'' -e ... - does not work on OS X 10.6 but works on 10.9+
sed -i '' -e ... - not working on...
Does Javascript pass by reference? [duplicate]
...cript!
Call-by-Value
Primitive types are passed by-value:
var num = 123, str = "foo";
function f(num, str) {
num += 1;
str += "bar";
console.log("inside of f:", num, str);
}
f(num, str);
console.log("outside of f:", num, str);
Reassignments inside a function scope are ...
Eclipse HotKey: how to switch between tabs?
...e defined.
They may be inherited from the multipage editor, making them an OS specific shortcut.
Regarding shortcuts on Mac OS (OSX), Matt Ball complained in Sept. 2011 to not being able to remap CTRL+Page Up/CTRL+Page Down:
It drives me nuts to not be able to flip through open tabs as I can ...
Difference between filter and filter_by in SQLAlchemy
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Be careful when using .filter. a query like id=12345, query(users).filter(id == id) will not filter on users.id. Instead, it will evaluate id == id as True and return all users. You need to use .filter(users.id == id) (as demoed above). I made this mistake earlier today.
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How do I disable orientation change on Android?
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I've always found you need both
android:screenOrientation="nosensor" android:configChanges="keyboardHidden|orientation"
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Make xargs handle filenames that contain spaces
...layer
This method is simpler and works with the GNU xargs as well.
For MacOS:
ls *.mp3 | tr \\n \\0 | xargs -0 mplayer
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What's the proper way to install pip, virtualenv, and distribute for Python?
...pted it to answer my more specific question about installing virtualenv across multiple versions of Python indpendently of system packages - stackoverflow.com/questions/6812207/… - works perfectly.
– lofidevops
Jul 29 '11 at 15:12
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Determine if Python is running inside virtualenv
Is it possible to determine if the current script is running inside a virtualenv environment?
16 Answers
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How to avoid “cannot load such file — utils/popen” from homebrew on OSX
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The problem mainly occurs after updating OS X to El Capitan (OS X 10.11) or macOS Sierra (macOS 10.12).
This is because of file permission issues with El Capitan’s or later macOS's new SIP process. Try changing the permissions for the /usr/local directory:
$ sud...
What is a method group in C#?
...) overload which takes a string parameter:
Func<string,string> fn = 123.ToString;
Console.WriteLine(fn("00000000"));
This example picks the ToString() overload which takes no parameters:
Func<string> fn = 123.ToString;
Console.WriteLine(fn());
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