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How do I write a bash script to restart a process if it dies?
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Implementing MVC with Windows Forms
...different from each other. Some of the design differences I have seen are (including most combinations):
Directly talk to the database (2 tier)
Use a backend that has been written for the given application (3 tier)
Use a set of web services that were written for use by many applications and can’...
How do I concatenate two strings in C?
... concatenate two strings. You could use the following function to do it:
#include <stdlib.h>
#include <string.h>
char* concat(const char *s1, const char *s2)
{
char *result = malloc(strlen(s1) + strlen(s2) + 1); // +1 for the null-terminator
// in real code you would check for ...
How to check if a model has a certain column/attribute?
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For a class
Use Class.column_names.include? attr_name where attr_name is the string name of your attribute.
In this case: Number.column_names.include? 'one'
For an instance
Use record.has_attribute?(:attr_name) or record.has_attribute?('attr_name') (Rails 3...
git undo all uncommitted or unsaved changes
...ain:
git clean -fdx
WARNING: -x will also remove all ignored files, including ones specified by .gitignore! You may want to use -n for preview of files to be deleted.
To sum it up: executing commands below is basically equivalent to fresh git clone from original source (but it does not r...
Creating a config file in PHP
...=> 'localhost',
'username' => 'root',
);
And then:
$configs = include('config.php');
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...四十一枝花")
elseif age > 60 and sex ~="Female" then
print("old man without country!")
elseif age < 20 then
io.write("too young, too naive!\n")
else
local age = io.read()
print("Your age is "..age)
end
上面的语句不但展示了if-else语句...
What is the difference between application server and web server?
... protocols, the application server deals with several different protocols, including, but not limited, to HTTP.
The Web server's main job is to display the site content and the application server is in charge of the logic, the interaction between the user and the displayed content. The application s...