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Clear variable in python
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What's wrong with self.left = None?
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Make .git directory web inaccessible
I have a website that I use github (closed source) to track changes and update site. The only problem is, it appears the .git directory is accessible via the web. How can I stop this and still be able to use git?
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Warning: “format not a string literal and no format arguments”
Since upgrading to the latest Xcode 3.2.1 and Snow Leopard, I've been getting the warning
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Extract filename and extension in Bash
I want to get the filename (without extension) and the extension separately.
37 Answers
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Convert interface{} to int
I'm trying to get a value from a JSON and cast it to int but it doesn't work, and I don't know how to do it properly.
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Replace multiple characters in a C# string
Is there a better way to replace strings?
12 Answers
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Concatenating Files And Insert New Line In Between Files
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You can do:
for f in *.txt; do (cat "${f}"; echo) >> finalfile.txt; done
Make sure the file finalfile.txt does not exist before you run the above command.
If you are allowed to use awk you can do:
awk 'FNR==1{print ""}1' *.txt > finalfile.txt
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How does the keyword “use” work in PHP and can I import classes with it?
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use doesn't include anything. It just imports the specified namespace (or class) to the current scope
If you want the classes to be autoloaded - read about autoloading
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Force line-buffering of stdout when piping to tee
Usually, stdout is line-buffered. In other words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
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How does Apple know you are using private API?
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1. otool -L
This will list all libraries the app has linked to. Something clearly you should not use, like IOKit and WebKit can be detected by this.
2. nm -u
This will list all linked symbols. This can detect
Undocumented C functions such as _UIImageWithName;
Objective-C classes such as UIPro...