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Build Eclipse Java Project from Command Line

...ore.aptBuild It uses the jdt apt plugin to build your workspace automatically. This is also known as a 'Headless Build'. Damn hard to figure out. If you're not using a win32 exe, you can try this: java -cp startup.jar -noSplash -data "D:\Source\MyProject\workspace" -application org.eclipse.jdt....
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Longest line in a file

...ing for a simple way to find the length of the longest line in a file. Ideally, it would be a simple bash shell command instead of a script. ...
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How is the undo tree used in Vim?

... See also :h undo-redo, which lists all the commands and their usage. There are two ways to traverse the undo tree. One is to go "back in time". g+ and g- will traverse all of the nodes in the tree in chronological or reverse-chronological order (which can...
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How to deep copy a list?

... don't make a deep copy using list() (Both list(...) and testList[:] are shallow copies). You use copy.deepcopy(...) for deep copying a list. deepcopy(x, memo=None, _nil=[]) Deep copy operation on arbitrary Python objects. See the following snippet - >>> a = [[1, 2, 3], [4, 5, 6]]...
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How do I write the 'cd' command in a makefile?

... It is actually executing the command, changing the directory to some_directory, however, this is performed in a sub-process shell, and affects neither make nor the shell you're working from. If you're looking to perform more tasks wit...
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#ifdef replacement in the Swift language

... After i set the custom flag -DLOCAL, on my #if LOCAl #else #endif, it falls into the #else section. I duplicated the original target AppTarget and rename it to AppTargetLocal & set its custom flag. – Perwyl Liu Jul 20 '16 at 6:48 ...
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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?

...an work around it from within psql by executing the DDL statement conditionally: SELECT 'CREATE DATABASE mydb' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'mydb')\gexec The manual: \gexec Sends the current query buffer to the server, then treats each column of each row of the query's...
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Does IMDB provide an API? [closed]

...lo.json (alternate) Format: JSON-P Caveat: It's in JSON-P format, and the callback parameter can not customised. To use it cross-domain you'll have to use the function name they choose (which is in the imdb${searchphrase} format). Alternatively, one could strip or replace the padding via a local pro...
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What does character set and collation mean exactly?

...a symbol, the number 0 is the encoding for 'A', and the combination of all four letters and their encodings is a character set. Now, suppose that we want to compare two string values, 'A' and 'B'. The simplest way to do this is to look at the encodings: 0 for 'A' and 1 for 'B'. Be...
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Adding days to a date in Python

... The previous answers are correct but it's generally a better practice to do: import datetime Then you'll have, using datetime.timedelta: date_1 = datetime.datetime.strptime(start_date, "%m/%d/%y") end_date = date_1 + datetime.timedelta(days=10) ...