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How do I get the name of the active user via the command line in OS X?
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Simple logical operators in Bash
...oup commands, but they only influence parsing, not grouping. The program x=2; { x=4; }; echo $x prints 4, whereas x=2; (x=4); echo $x prints 2. (Also braces require spaces around them and a semicolon before closing, whereas parentheses don't. That's just a syntax quirk.)
With a leading dollar sign...
How to cancel a Task in await?
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Read up on Cancellation (which was introduced in .NET 4.0 and is largely unchanged since then)...
Razor comment syntax
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@* here is the code to comment *@
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git recover deleted file where no commit was made after the delete
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Simple Vim commands you wish you'd known earlier [closed]
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Omitting the first line from any Linux command output
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or awk 'NR>1'
– mitchus
Oct 1 '14 at 9:54
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SQLiteDatabase.query method
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tableColumns
null for all columns as in SELECT * FROM ...
new String[] { "column1", "column2...
find filenames NOT ending in specific extensions on Unix?
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Or without ( and the need to escape it:
find . -not -name "*.exe" -not -name "*.dll"
and to a...
What Automatic Resource Management alternatives exist for Scala?
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For now Scala 2.13 has finally supported: try with resources by using Using :), Example:
val lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.re...