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How to insert text at beginning of a multi-line selection in vi/Vim
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Press Esc to enter 'command mode'
Use Ctrl+V to enter visual block mode
Move Up/Downto select the columns of text in the lines you want to
comment.
Then hit Shift+i and type the text you want to insert.
Then hit Esc, wait 1 second and the inserted t...
How to programmatically cause a core dump in C/C++
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: : :
raise (SIGABRT);
Calling abort() will also cause a core dump, and you can even do this without terminating your process by calling fork() followed by abort() in the child only - see this answer for details.
shar...
Syntax highlighting code with Javascript [closed]
... Google Code uses it for their own repo highlighting (since they wrote it) and automatically detects the language.
– Karan
Oct 2 '08 at 4:14
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Copy all the lines to clipboard
... get the cursor to the first character of the file
"*y to start a yank command to the register * from the first line, until...
G to go the end of the file
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Different between parseInt() and valueOf() in java?
...ger.valueOf(Integer.parseInt("123"))
Now, if what you want is the object and not the primitive, then using valueOf(String) may be more attractive than making a new object out of parseInt(String) because the former is consistently present across Integer, Long, Double, etc.
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Dump Mongo Collection into JSON format
...) which can dump a collection. This utility uses the native libmongoclient and is likely the fastest method.
mongoexport -d <database> -c <collection_name>
Also helpful:
-o: write the output to file, otherwise standard output is used (docs)
--jsonArray: generates a valid json docume...
Validate a username and password against Active Directory?
How can I validate a username and password against Active Directory? I simply want to check if a username and password are correct.
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How to make a .jar out from an Android Studio project
I'm using AndroidStudio and I have this project as shown:
9 Answers
9
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How to stop an unstoppable zombie job on Jenkins without restarting the server?
...t is not doing anything. Clicking the little X in the corner does nothing, and the console output log doesn't show anything either. I've checked on our build servers and the job doesn't actually seem to be running at all.
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How do I make an HTML text box show a hint when empty?
...ce of any styles, in Chrome this looks like:
You can try demos out here and in HTML5 Placeholder Styling with CSS.
Be sure to check the browser compatibility of this feature. Support in Firefox was added in 3.7. Chrome is fine. Internet Explorer only added support in 10. If you target a browser...