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How to create nonexistent subdirectories recursively using Bash?
I am creating a quick backup script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
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Static fields on a null reference in Java
static members ( static fields or static methods) in Java are associated with their respective class rather than the objects of this class. The following code attempts to access a static field on a null reference.
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Changing the case of a string in Eclipse
How do I make a lowercase string uppercase using Eclipse? I want to select a string and either uppercase it or lowercase it. Is there a shortcut for doing this?
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Conditionally Remove Dataframe Rows with R [duplicate]
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Combine --user with --prefix error with setup.py install
I was trying to install Python packages a system I recently gained access to. I was trying to take advantage of Python's relatively new per user site-packages directory , and the new option --user . (The option is currently undocumented , however it exists for Python 2.6+; you can see the help by...
List all commits (across all branches) for a given file
This question is closely related to List all commits for a specific file however it is different. I want to find out which commits, across all branches , had modified a given file.
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How do I find the last occurrence of a substring in an NSString?
How would I get the last occurrence of an NSString within another NSString? For example, in "abc def ghi abc def ghi," I want to find the index of the second "abc," not the first. I know I could do this with a bunch of rangeOfStrings, but is there already a function for that?
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Rails migrations: Undo default setting for a column
I have the problem, that I have an migration in Rails that sets up a default setting for a column, like this example:
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Emacs: print key binding for a command or list all key bindings
In Emacs (GNU 23.2, *nix), how can I:
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sql “LIKE” equivalent in django query
What is the equivalent of this SQL statement in django?
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