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Function to clear the console in R and RStudio
I am wondering if there is a function to clear the console in R and, in particular, RStudio I am looking for a function that I can type into the console, and not a keyboard shortcut.
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Frontend tool to manage H2 database [closed]
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I like SQuirreL SQL Client, and NetBeans is very useful; but more often, I just fire up the built-in org.h2.tools.Server and browse port 8082:
$ java -cp /opt/h2/bin/h2.jar org.h2.tools.Server -help
Starts the H2 Console (web-) server, TCP, and PG ser...
How to customize ?
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The CSS for the form control will make it appear invisible and not take up space in the document layout, but will still exist so it can be activated via the label.
If you want to display the user’s chosen path after selection, you can listen for the change event with JavaScript an...
Ternary operator (?:) in Bash
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why the [[ and ]] ? it works just as well like this : [ $b = 5 ] && a="$c" || a="$d"
– kdubs
Oct 29 '14 at 14:57
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Windows batch: formatted date into variable
...g your variable namespace.
If you need UTC instead of local time, the command is more or less the same:
for /f %%x in ('wmic path win32_utctime get /format:list ^| findstr "="') do set %%x
set today=%Year%-%Month%-%Day%
s...
Quick unix command to display specific lines in the middle of a file?
Trying to debug an issue with a server and my only log file is a 20GB log file (with no timestamps even! Why do people use System.out.println() as logging? In production?!)
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What's the difference between UTF-8 and UTF-8 without BOM?
What's different between UTF-8 and UTF-8 without a BOM ? Which is better?
21 Answers
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Is there a way to automate the android sdk installation?
Now I have to download and install the Android SDK and AVD Manager, and then install the APIs, tools through the UI. Is there a way to automate this process?
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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...always be the name of the executable? Or is this just a common convention and not guaranteed to be true 100% of the time?
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Converting NSString to NSDate (and back again)
... NSString like " 01/02/10 " (meaning 1st February 2010) into an NSDate ? And how could I turn the NSDate back into a string?
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