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What is the preferred Bash shebang?
...n/env bash for portability: different *nixes put bash in different places, and using /usr/bin/env is a workaround to run the first bash found on the PATH. And sh is not bash.
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leading zeros in rails
I have fields hr and min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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.NET Format a string with fixed spaces
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The first and the last, at least, are possible using the following syntax:
String.Format("{0,20}", "String goes here");
String.Format("{0,-20}", "String goes here");
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Is it possible to Pivot data using LINQ?
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GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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What is the meaning of id?
I am (trying to) learn Objective-C and I keep coming across a phrase like:
5 Answers
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Getting full URL of action in ASP.NET MVC [duplicate]
...se in razor to create an anchor element, but it also requires the hostName and fragment parameters. So I'd just opt to use @Url.Action again:
<span>
Copy
<a href='@Url.Action("About", "Home", null, Request.Url.Scheme)'>this link</a>
and post it anywhere on the internet!
<...
Is Mono ready for prime time? [closed]
... Mono runtime, or is it really, really compatible enough to just take of and run already written code for Microsoft's runtime?
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Copying PostgreSQL database to another server
...o a remote host.
With a big database or a slow connection, dumping a file and transfering the file compressed may be faster.
As Kornel said there is no need to dump to a intermediate file, if you want to work compressed you can use a compressed tunnel
pg_dump -C dbname | bzip2 | ssh remoteuser@...
Insert new column into table in sqlite?
...ty , rate . Now I need to add a new column COLNew in between the name and qty columns. How do I add a new column in between two columns?
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visual c++: #include files from other projects in the same solution
...g on a game using Visual C++. I have some components in separate projects, and have set the project dependencies. How do I #include a header file from a different project? I have no idea how to use classes from one project in another.
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