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How to find patterns across multiple lines using grep?

I want to find files that have "abc" AND "efg" in that order, and those two strings are on different lines in that file. Eg: a file with content: ...
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Django South - table already exists

I am trying to get started with South. I had an existing database and I added South ( syncdb , schemamigration --initial ). ...
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Building a minimal plugin architecture in Python

...ne is, basically, a directory called "plugins" which the main app can poll and then use imp.load_module to pick up files, look for a well-known entry point possibly with module-level config params, and go from there. I use file-monitoring stuff for a certain amount of dynamism in which plugins are a...
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Spring RestTemplate timeout

...sing Spring's RestTemplate to talk to my service. I've done some research and I've found and used the xml below (in my application xml) which I believe is meant to set the timeout. I'm using Spring 3.0. ...
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Is a URL allowed to contain a space?

...he space character is unsafe because significant spaces may disappear and insignificant spaces may be introduced when URLs are transcribed or typeset or subjected to the treatment of word-processing programs. The characters "<" and ">" are unsafe because they are used as th...
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ggplot with 2 y axes on each side and different scales

I need to plot a bar chart showing counts and a line chart showing rate all in one chart, I can do both of them separately, but when I put them together, I scale of the first layer (i.e. the geom_bar ) is overlapped by the second layer (i.e. the geom_line ). ...
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Why does struct alignment depend on whether a field type is primitive or user-defined?

...ot supposed to happen. You can see it by making the struct members public and appending test code like this: var test = new RefAndTwoInt32Wrappers(); test.text = "adsf"; test.x.x = 0x11111111; test.y.x = 0x22222222; Console.ReadLine(); // <=== Breakpoint here When the...
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How can I get last characters of a string

...th - 1); // => "1" This gets the characters starting at id.length - 5 and, since the second argument for .substr() is omitted, continues to the end of the string. You can also use the .slice() method as others have pointed out below. If you're simply looking to find the characters after the u...
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How do I pass a variable by reference?

...n seems unclear about whether parameters are passed by reference or value, and the following code produces the unchanged value 'Original' ...
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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?

...ould almost never be used. (Making int 64-bit would waste cache footprint and memory bandwidth; x86-64 most efficiently supports 32 and 64-bit operand sizes) The behaviour for 8 and 16-bit operand sizes is the strange one. The dependency madness is one of the reasons that 16-bit instructions are a...