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How to redirect output to a file and stdout
...gt;&1 | tee outfile
2>&1 redirects channel 2 (stderr/standard error) into channel 1 (stdout/standard output), such that both is written as stdout. It is also directed to the given output file as of the tee command.
Furthermore, if you want to append to the log file, use tee -a as:
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No Exception while type casting with a null in java
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Laravel migration: unique key is too long, even if specified
...ng to migrate a users table in Laravel. When I run my migration I get this error:
38 Answers
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What is the Scala annotation to ensure a tail recursive function is optimized?
...eption("bang!")
| else bang(x-1)
| }
| }
<console>:9: error: could not optimize @tailrec annotated method: it contains a recursive call not in tail position
@tailrec def boom(x: Int): Int = {
^
<console>:13: error: could not optimize @tailrec ann...
argparse store false if unspecified
...ogging').
– Krassi
Jun 18 '19 at 12:05
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Show space, tab, CRLF characters in editor of Visual Studio
...View White Space. The keyboard shortcut is CTRL+R, CTRL+W. The command is called Edit.ViewWhiteSpace.
It works in all Visual Studio versions at least since Visual Studio 2010, the current one being Visual Studio 2019 (at time of writing). In Visual Studio 2013, you can also use CTRL+E, S or CTRL+E,...
Error pushing to GitHub - insufficient permission for adding an object to repository database
I'm getting back an unusual error while trying to do a "git push" to my GitHub repository:
21 Answers
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JFrame in full screen Java
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I will tell you the error and reason. I created one AppFrame class (with some default properties) and in order to make any class as JFrame I simply extend it. It has setVisible as true. Now above three lines has to be in same order, if visibl...
Check if an image is loaded (no errors) with jQuery
...d in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events. After these events I check the image DOM element for the .complete to make sure the image wasn't already loaded before jQuery co...
How to convert JSON data into a Python object
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this may result in a Value error, ValueError: Type names and field names cannot start with a number: '123'
– PvdL
Apr 11 '14 at 21:01
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