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How to replace a whole line with sed?
...lish this:
sed -i "/aaa=/c\aaa=xxx" your_file_here
This will go through and find any lines that pass the aaa= test, which means that the line contains the letters aaa=. Then it replaces the entire line with aaa=xxx. You can add a ^ at the beginning of the test to make sure you only get the line...
Change R default library path using .libPaths in Rprofile.site fails to work
...dows, not as an administrator. When I install a package, the following command doesn't work:
15 Answers
...
Objective-C class -> string like: [NSArray className] -> @“NSArray”
...ntime (the internals of the runtime are mostly hidden from the application and exposed only through a few API functions). Each class object (e.g. [NSArray class]) is actually a struct. The struct contains a lot of information about the class, including its name, the methods it implements, the superc...
Split string with delimiters in C
How do I write a function to split and return an array for a string with delimiters in the C programming language?
20 Answe...
What are the most useful Intellij IDEA keyboard shortcuts? [closed]
...imilar to Jeff's post on Visual Studio shortcuts ( Visual Studio .NET 2003 and 2005 Keyboard Shortcuts ), but didn't really spot anything that helped. Hopefully the answers to this question will fill the void.
...
When is the finalize() method called in Java?
... be called on the main class if the main class creates a non-daemon thread and then returns?
– Tom G
Feb 15 '14 at 21:24
3
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How to print the ld(linker) search path
...
You can do this by executing the following command:
ld --verbose | grep SEARCH_DIR | tr -s ' ;' \\012
gcc passes a few extra -L paths to the linker, which you can list with the following command:
gcc -print-search-dirs | sed '/^lib/b 1;d;:1;s,/[^/.][^/]*/\.\./,/,;t 1;...
How safe is it to store sessions with Redis?
...s is perfect for storing sessions. All operations are performed in memory, and so reads and writes will be fast.
The second aspect is persistence of session state. Redis gives you a lot of flexibility in how you want to persist session state to your hard-disk. You can go through http://redis.io/to...
C++ Singleton design pattern
... the Singleton design pattern that is lazy-evaluated, correctly-destroyed, and thread-safe.
class S
{
public:
static S& getInstance()
{
static S instance; // Guaranteed to be destroyed.
// Instantiated on first use.
...
Enable zooming/pinch on UIWebView
...evious.
}
NOTE: I had to tested on Mac OS X - 10.9.3 with Xcode 5.1.1 and iOS version 6.1 and latter.
I hope this will helpful for you. :)
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