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How to list the contents of a package using YUM?
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There is a package called yum-utils that builds on YUM and contains a tool called repoquery that can do this.
$ repoquery --help | grep -E "list\ files"
-l, --list list files in this package/group
Combined into one example:
$ r...
How to pull a random record using Django's ORM?
...['count']
random_index = randint(0, count - 1)
return self.all()[random_index]
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Can I save the window layout in Visual Studio 2010/2012/2013?
... and Export Settings Wizard" again to import that settings file, restoring all of your tool windows to their previous layout. (Note that the wizard also allows you to limit what you import from a particular settings file the same way you can limit what you export.)
I use this on my laptop, where sw...
Concatenate a vector of strings/character
... Just a note that if sdata can contain either strings which are all of the same length or of variable lengths then paste(sdata, sep = '', collapse = '') should be used to avoid unexpected results.
– zelanix
Jan 19 '14 at 22:03
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How can I access the MySQL command line with XAMPP for Windows?
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On the Mac, or at least on my Mac using a default install, I accessed it at:
/Applications/xampp/xamppfiles/bin/mysql -uroot -p
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Coalesce function for PHP?
...HP 7 introduced a real coalesce operator:
echo $_GET['doesNotExist'] ?? 'fallback'; // prints 'fallback'
If the value before the ?? does not exists or is null the value after the ?? is taken.
The improvement over the mentioned ?: operator is, that the ?? also handles undefined variables without...
PostgreSQL: Show tables in PostgreSQL
...terface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalog database.
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What are JavaScript's builtin strings?
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First of all, I would like to thank Jason and all the contributors for playing with that funny snippet. I have written that piece of code just for fun in order to send it to my wife on February 14 :) Having only Chrome installed on th...
How to reference generic classes and methods in xml documentation
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Thanks for that answer! It's actually missing from MSDN's page on <see>: msdn.microsoft.com/en-us/library/acd0tfbe.aspx
– joce
Apr 16 '11 at 20:56
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Request is not available in this context
...on here: stackoverflow.com/questions/1790457/…
– jball
Mar 25 '10 at 17:55
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Thanks. I had seen...