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How to rsync only a specific list of files?
...s to ignore the .. giving me an error like rsync: link_stat "/home/michael/test/subdir/test.txt" failed: No such file or directory (in this case running from the "test" dir and trying to specify "../subdir/test.txt" which does exist.
– Michael
Nov 2 '16 at 0:09...
Proper usage of Java -D command-line parameters
... the problem is that you've put the "-D" after the -jar. Try this:
java -Dtest="true" -jar myApplication.jar
From the command line help:
java [-options] -jar jarfile [args...]
In other words, the way you've got it at the moment will treat -Dtest="true" as one of the arguments to pass to main i...
Referring to the null object in Python
... Python; instead there's None. As stated already, the most accurate way to test that something has been given None as a value is to use the is identity operator, which tests that two variables refer to the same object.
>>> foo is None
True
>>> foo = 'bar'
>>> foo is None
F...
How to programmatically clear application data
I am developing automated tests for an android application (using Robotium). In order to ensure the consistency and reliability of tests, I would like to start each test with clean state (of the application under test). In order to do so, I need to clear the app data. This can be done manually in Se...
Python constructors and __init__
...nce of C after it is created.
For example Python allows you to do:
class Test(object):
pass
t = Test()
t.x = 10 # here you're building your object t
print t.x
But if you want every instance of Test to have an attribute x equal to 10, you can put that code inside __init__:
class Test(obj...
How do I parse a URL into hostname and path in javascript?
...
Even with absolute URLs, IE (tested in IE 11) behaves differently from Chrome and Firefox. IE's pathname removes the leading slash, while the other browsers do not. So you'll end up with /path or path, depending on your browser.
– T...
How do you get assembler output from C/C++ source in gcc?
... generate what code:
# create assembler code:
g++ -S -fverbose-asm -g -O2 test.cc -o test.s
# create asm interlaced with source lines:
as -alhnd test.s > test.lst
Found in Algorithms for programmers, page 3 (which is the overall 15th page of the PDF).
...
How to avoid explicit 'self' in Python?
...
You can use whatever name you want, for example
class test(object):
def function(this, variable):
this.variable = variable
or even
class test(object):
def function(s, variable):
s.variable = variable
but you are stuck with using a name for the scope....
Is there any particular difference between intval and casting to int - `(int) X`?
...ted in the comments on the PHP doc page and shamelessly reiterated here:
$test_int = 12;
$test_string = "12";
$test_float = 12.8;
echo (int) $test_int; // 12
echo (int) $test_string; // 12
echo (int) $test_float; // 12
echo intval($test_int, 8); // 12 <-- WOAH!
echo i...
How to trim a string in SQL Server before 2017?
...this example, Space, tab, LF and CR characters are being trimmed:
Declare @Test nvarchar(50) = Concat (' ', char(9), char(13), char(10), ' ', 'TEST', ' ', char(9), char(10), char(13),' ', 'Test', ' ', char(9), ' ', char(9), char(13), ' ')
DECLARE @TrimPattern nvarchar(max) = '%[^ ' + char(9) + char(...