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How to change the name of the active scheme in Xcode?

...t Scheme" from the "Product" menu. Click on the "Manage Schemes…" button Select the scheme whose name you wish to change Press the "Return" key It will select the name of the scheme and allow you to edit it. share ...
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How to configure socket connect timeout

...ame problem by making the socket non-blocking and then putting the fd in a select/poll loop with a timeout value equal to the amount of time we are willing to wait for the connect to succeed. I found this for Visual C++ and the explanation there also bends towards the select/poll mechanism I expla...
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How can I use grep to show just filenames on Linux?

...andard: -l (The letter ell.) Write only the names of files containing selected lines to standard output. Pathnames are written once per file searched. If the standard input is searched, a pathname of (standard input) will be written, in the POSIX locale. In other locales, standard i...
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Really Cheap Command-Line Option Parsing in Ruby

...y chairs are in the classroom", :default => 1 p.option :room_number, "select room number", :default => 2, :value_in_set => [1,2,3,4] end.process! Calling the script with -h or --help will print Usage: micro-optparse-example [options] -v, --[no-]verbose turn on verbose...
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Blocks and yields in Ruby

...y: days = ["monday", "tuesday", "wednesday", "thursday", "friday"] # select those which start with 't' days.select do | item | item.match /^t/ end => ["tuesday", "thursday"] Or, we can also provide a custom sort algorithm, for instance based on the string size: days.sort do |x,...
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In Intellij, how do I toggle between camel case and underscore spaced?

...g Manipulation which has the capabilities you're looking for (and more). Select historyOfPresentIllness and press Alt+M to bring up the plugin menu, then press: 5 - To snake_case (or to camelCase) which converts to history_of_present_illness 6 - To hyphen-case (or to snake_case) which converts...
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Font Awesome icon inside text input element

...e placeholder attribute will simply ignore it. UPDATE The before content selector selects the input: input[type="text"]:before. You should select the wrapper: .wrapper:before. See http://jsfiddle.net/allcaps/gA4rx/ . I also added the placeholder suggestion where the wrapper is redundant. .wrap...
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?

...t have to have a placeholder for it in the Insert statement. Then a simple select * into the target table auto populated this column. Here are the two SQL statements that I used on PostgreSQL 9.6.4. ALTER TABLE target ADD COLUMN some_column SERIAL; INSERT INTO target SELECT * from source; ...
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How to use unicode characters in Windows command line?

...t values: ECHO. ECHO ............................................... ECHO Select Codepage ECHO ............................................... ECHO. ECHO 1 - CP1252 ECHO 2 - UTF-8 ECHO 3 - CP850 ECHO 4 - ISO-8859-1 ECHO 5 - ISO-8859-15 ECHO 6 - US-ASCII ECHO. ECHO 9 - Reset to System Default (CP%O...
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How to enable Ad Hoc Distributed Queries

...ded sp_configure 'Ad Hoc Distributed Queries', 1; RECONFIGURE; GO SELECT a.* FROM OPENROWSET('SQLNCLI', 'Server=Seattle1;Trusted_Connection=yes;', 'SELECT GroupName, Name, DepartmentID FROM AdventureWorks2012.HumanResources.Department ORDER BY GroupName, Name') AS a; GO O...