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How to write a bash script that takes optional input arguments?
...ual - 3.5.3 Shell Parameter Expansion:
Omitting the colon results in a test only for a parameter that is unset. Put another way, if the colon is included, the operator tests for both parameter’s existence and that its value is not null; if the colon is omitted, the operator tests only for exis...
bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...s are to Java. Inside a gem file, you find Ruby code (.rb files), but also tests, and a special file giving information on the gem itself, such as its name, dependencies and version (gemspec). Any Ruby project can define the gems it needs via a Gemfile that just need to declare dependencies. Rubygem...
What is “entropy and information gain”?
...=0: male
length>=7
| length=5: male
basically each node represent a test performed on a single attribute, and we go left or right depending on the result of the test. We keep traversing the tree until we reach a leaf node which contains the class prediction (m or f)
So if we run the name Amr...
How to remove folders with a certain name
...according to your wishes, as follows:
find . -name a -exec rm -rf {} \;
Test it first using ls to list:
find . -name a -exec ls {} \;
To ensure this only removes directories and not plain files, use the "-type d" arg (as suggested in the comments):
find . -name a -type d -exec rm -rf {} \;
...
Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m
I have a unit test where I have to mock a non-virtual method that returns a bool type
6 Answers
...
Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
..." + count++);
return new InMemoryAccountRepository();
}
}
-- Test File to execute:
@Test
public void prototypeTest() {
// create the spring container using the ServiceConfig @Configuration class
ApplicationContext ctx = new AnnotationConfigApplicationContext(ServiceConfig.clas...
Best practices with STDIN in Ruby?
...rl).
If stdin is empty or there is no arguments, nothing is printed.
Few test cases:
$ cat input.txt | ./myprog.rb
From stdin: line 1
From stdin: line 2
$ ./myprog.rb arg1 arg2 arg3
From arguments: arg1
From arguments: arg2
From arguments: arg3
hi!
From stdin: hi!
...
Setting log level of message at runtime in slf4j
...fy the overheads of supporting it.
Concerning @ripper234's use-case (unit testing), I think the pragmatic solution is modify the unit test(s) to hard-wire knowledge of what logging system is behind the slf4j facade ... when running the unit tests.
...
What's the difference between the various methods to get a Context?
...hoose among your choices.
So here is my conclusion: I suppose (I have not tested it further) than the baseContext is required when dealing with contextMenu in your Activity...
The test has been done coding with API 8, and tested on an HTC Desire, android 2.3.3.
I hope my comment have not bored yo...
Get Image size WITHOUT loading image into memory
... the output of the python magic module:
>>> t = magic.from_file('teste.png')
>>> t
'PNG image data, 782 x 602, 8-bit/color RGBA, non-interlaced'
>>> re.search('(\d+) x (\d+)', t).groups()
('782', '602')
This is a wrapper around libmagic which read as few bytes as possib...