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How to do an update + join in PostgreSQL?

Basically, I want to do this: 9 Answers 9 ...
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Null coalescing in powershell

Is there a null coalescing operator in powershell? 10 Answers 10 ...
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Find and Replace Inside a Text File from a Bash Command

What's the simplest way to do a find and replace for a given input string, say abc , and replace with another string, say XYZ in file /tmp/file.txt ? ...
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Listing each branch and its last revision's date in Git

I need to delete old and unmaintained branches from our remote repository. I'm trying to find a way with which to list the remote branches by their last modified date, and I can't. ...
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PHP sprintf escaping %

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How to get the size of a string in Python?

For example, I get a string: 5 Answers 5 ...
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Get program execution time in the shell

I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution. ...
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Convert DOS line endings to Linux line endings in Vim

If I open files I created in Windows, the lines all end with ^M . How do I delete these characters all at once? 26 Answers...
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Set cursor position on contentEditable

I am after a definitive, cross-browser solution to set the cursor/caret position to the last known position when a contentEditable='on' regains focus. It appears default functionality of a content editable div is to move the caret/cursor to the beginning of the text in the div each time you click ...
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Simplest way to detect a mobile device in PHP

What is the simplest way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...