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How to search file text for a pattern and replace it with a given value

...ull. This code is not fit for anything beyond a quick one-off script where all the data is backed up. For that reason, do NOT copy this code into your programs. Here's a quick short way to do it. file_names = ['foo.txt', 'bar.txt'] file_names.each do |file_name| text = File.read(file_name) ne...
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Cross compile Go on OSX?

... The env command runs only that call in a custom environment and 'resets' it after it is done. For example run export GOOS=windows, then the command with or without the env and echo $GOOS afterwards. With the env the GOOS was not changed. ...
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are

... it seems that scala-time is no longer maintained. import com.github.nscala_time.time.Imports._ DateTime.now // returns org.joda.time.DateTime = 2009-04-27T13:25:42.659-07:00 DateTime.now.hour(2).minute(45).second(10) // returns org.joda.time.DateTime = 2009-04-27T02:45:10.313-07:00 DateTime.now ...
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Check free disk space for current partition in bash

I am writing an installer in bash. The user will go to the target directory and runs the install script, so the first action should be to check that there is enough space. I know that df will report all file systems, but I was wondering if there was a way to get the free space just for the partition...
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Return HTTP status code 201 in flask

... You can read about it here. return render_template('page.html'), 201 share | improve this answer | follow | ...
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How to remove all null elements from a ArrayList or String Array?

... Try: tourists.removeAll(Collections.singleton(null)); Read the Java API. The code will throw java.lang.UnsupportedOperationException for immutable lists (such as created with Arrays.asList); see this answer for more details. ...
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Real-world examples of recursion [closed]

...l, and fixes itself quickly( Type A) , Except for one in 5 people ( We'll call these type B ) who become permanently infected with it and shows no symptoms and merely acts a spreader. This creates quite annoying waves of havoc when ever type B infects a multitude of type A. Your task is to track ...
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iOS - Dismiss keyboard when touching outside of UITextField

...TapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:))) self.view.addGestureRecognizer(tapGesture) For dismissKeyboard @objc func dismissKeyboard (_ sender: UITapGestureRecognizer) { aTextField.resignFirstResponder() } ...
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ReSharper Abbreviations List: Where can I modify it?

...e 6.x way of doing it?) http://www.jetbrains.com/resharper/webhelp50/Coding_Assistance__Naming_Style.html#dynaProc3 share | improve this answer | follow | ...
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How to change an application icon programmatically in Android?

...st: <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" /> <uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" /> Then you need this two methods for installing and uninstalling shortcuts. The shortcutAdd method creates a bitm...