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How can I grep for a string that begins with a dash/hyphen?
I want to grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
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App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
...cher 应用启动器扩展
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.aix拓展文件：
de.ullisroboterseite.ursai2applauncher.aix
.aia示例文件：
UrsAI2AppLauncherTest.aia
UrsAI2AppLauncherTestResponder.aia
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How to initialize a two-dimensional array in Python?
...up in Python was
bar = []
for item in some_iterable:
bar.append(SOME EXPRESSION)
which helped motivate the introduction of list comprehensions, which convert that snippet to
bar = [SOME EXPRESSION for item in some_iterable]
which is shorter and sometimes clearer. Usually you get in the hab...
Remove NA values from a vector
...uge vector which has a couple of NA values, and I'm trying to find the max value in that vector (the vector is all numbers), but I can't do this because of the NA values.
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Should I use encodeURI or encodeURIComponent for encoding URLs?
...h symbols & characters that have special meaning?";
var uri = 'http://example.com/foo?hello=' + encodeURIComponent(world);
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Scala constructor overload?
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It's worth explicitly mentioning that Auxiliary Constructors in Scala must either call the primary constructor (as in landon9720's) answer, or another auxiliary constructor from the same class, as their first action. They cannot simply c...
Setting onClickListener for the Drawable right of an EditText [duplicate]
In my app I have a EditText with a search Icon on the right side. I used the code given below.
6 Answers
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How to convert an integer to a string in any base?
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import string
digs = string.digits + string.ascii_letters
def int2base(x, base):
if x < 0:
sign = -1
elif x == 0:
return digs[0]
else:
sign = 1
x *= sign
digits = []
while x:
digits.append(digs[int(x % base)])
x = int(x / base)...
Why does sizeof(x++) not increment x?
...izeof operator yields the size (in bytes) of its operand, which may be an expression or the parenthesized name of a type. The size is determined from the type of the operand. The result is an integer. If the type of the operand is a variable length array type, the operand is evaluated; otherwise, th...
How do I get user IP address in django?
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def get_client_ip(request):
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[0]
else:
ip = request.META.get('REMOTE_ADDR')
return ip
Make sure you have reverse p...