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How to read a large file - line by line?
...with statement handles opening and closing the file, including if an exception is raised in the inner block. The for line in f treats the file object f as an iterable, which automatically uses buffered I/O and memory management so you don't have to worry about large files.
There should be one --...
Redefining NULL
...L pointer will remain undetected and at the same time cause dangerous behaviour.
7 Answers
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What's the difference between utf8_general_ci and utf8_unicode_ci?
..., utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version was given the name utf8mb4.
Note: Newer versions of MySQL have updated Unicode sorting rules, available under names such as utf8mb4_0900_ai_ci for equivalent rules based...
lsof survival guide [closed]
...and-line utility for unix systems. It lists open files, displaying information about them. And since most everything is a file on unix systems, lsof can give sysadmins a ton of useful diagnostic data.
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How to add images in select list?
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In Firefox you can just add background image to option:
<select>
<option style="background-image:url(male.png);">male</option>
<option style="background-image:url(female.png);">female</option>
<option style="background-image:url(others....
Where can I download Spring Framework jars without using Maven?
SpringSource.org changed their site to http://spring.io
1 Answer
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How to redirect both stdout and stderr to a file [duplicate]
I am running a bash script that creates a log file for the execution of the command
5 Answers
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Algorithm to compare two images
...the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
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Favourite performance tuning tricks [closed]
...ndy-dandy list of things I always give to someone asking me about optimisation.
We mainly use Sybase, but most of the advice will apply across the board.
SQL Server, for example, comes with a host of performance monitoring / tuning bits, but if you don't have anything like that (and maybe even if...
Simulate airplane mode in iPhone Simulator
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Turn off your network connection on the Mac.
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