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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
...t is in early stage but already [almost] works. sphinxsearch.com/wiki/doku.php?id=rt_tutorial
– pQd
Jun 25 '10 at 21:42
4
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Find duplicate lines in a file and count how many time each line was duplicated?
...ount
For the given input, the output is:
3 123
2 234
1 345
In order to sort the output with the most frequent lines on top, you can do the following (to get all results):
sort FILE | uniq -c | sort -nr
or, to get only duplicate lines, most frequent first:
sort FILE | uniq -cd | sort...
How do I perform HTML decoding/encoding using Python/Django?
...issing the single-quote. This version includes an updated tuple, with the order of replacement reversed to avoid symmetric problems:
def html_decode(s):
"""
Returns the ASCII decoded version of the given HTML string. This does
NOT remove normal HTML tags like <p>.
"""
htm...
Why do we need a pure virtual destructor in C++?
...ly method that even if it is pure virtual has to have an implementation in order to instantiate derived classes (yes pure virtual functions can have implementations).
struct foo {
virtual void bar() = 0;
};
void foo::bar() { /* default implementation */ }
class foof : public foo {
void ba...
Regex empty string or email
...eave empty like so:
/\A(INTENSE_EMAIL_REGEX|)\z/i
Same thing in reverse order
/\A(|INTENSE_EMAIL_REGEX)\z/i
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About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
... it looks for
~/.bash_profile, ~/.bash_login, and
~/.profile, in that order, and reads
and executes commands from the first
one that exists and is readable. The
--noprofile option may be used when the shell is started to inhibit this
behavior.
When a login shell exits, bash
...
How to perform Callbacks in Objective-C
...Object:self]; to [object performSelector:selector withObject:self]; in order to get it to work correctly.
– Banjer
Oct 12 '10 at 1:48
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How to ignore certain files in Git
...to your local working copy.
How to ignore changed files (temporarily)
In order to ignore changed files to being listed as modified, you can use the following git command:
git update-index --assume-unchanged <file>
To revert that ignorance use the following command:
git update-index --no-...
How to convert a char to a String?
...
Below are various ways to convert to char c to String s (in decreasing order of speed and efficiency)
char c = 'a';
String s = String.valueOf(c); // fastest + memory efficient
String s = Character.toString(c);
String s = new String(new char[]{c});
String s = String.valueOf(new char[...
How do I get a UTC Timestamp in JavaScript?
...should do the Math.floor / 1000 -- but still I would need that function in order to have the UTC timestamp of an existing date object... right?
– Merc
Mar 18 '12 at 5:22
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