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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...er the hood flock uses simply flock(2) syscall and it doesn't provide such information nor it even should. If you want to unreliably check, whether there is a lock present (or lack thereof), i.e. without holding it, then you have to try to acquire it in a non-blocking way (exlock_now) and release it...
How do I make a dotted/dashed line in Android?
...dp" /> to your shape. See stackoverflow.com/a/41940609/1000551 for more info
– Vadim Kotov
Jul 22 '19 at 10:55
I th...
How to debug Angular JavaScript Code
...your console in a way that you want it to work!
showing the error/warning/info the way your console shows you normally!
use this > Document
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SqlDataAdapter vs SqlDataReader
...t for the common data access case of binding to a read-only grid.
For more info, see the official Microsoft documentation.
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What is the difference between id and class in CSS, and when should I use them? [duplicate]
...
For more info on this click here.
Example
<div id="header_id" class="header_class">Text</div>
#header_id {font-color:#fff}
.header_class {font-color:#000}
(Note that CSS uses the prefix # for IDs and . for Classes.)...
How to avoid explicit 'self' in Python?
... let me be clear that I don't think it is generally a good idea.
For more info, and ways to iterate through class variables, or even functions, see answers and discussion to this question. For a discussion of other ways to dynamically name variables, and why this is usually not a good idea see this...
C/C++ maximum stack size of program
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Yes, the default limit for VS is indeed 1MB. More info and the way to set a different value can be found in Microsoft documentation: msdn.microsoft.com/en-us/library/tdkhxaks(v=vs.140).aspx
– FrankS101
Oct 5 '16 at 15:02
...
Add params to given URL in Python
...o we don't loose existing args
url = unquote(url)
# Extracting url info
parsed_url = urlparse(url)
# Extracting URL arguments from parsed URL
get_args = parsed_url.query
# Converting URL arguments to dict
parsed_get_args = dict(parse_qsl(get_args))
# Merging URL argum...
Difference between Mock / Stub / Spy in Spock test framework
... maybe even slightly falsify in the upcoming paragraphs. For more detailed info see Martin Fowler's website.
A mock is a dummy class replacing a real one, returning something like null or 0 for each method call. You use a mock if you need a dummy instance of a complex class which would otherwise us...
“No X11 DISPLAY variable” - what does it mean?
... @kevindtimm, Good point - I'm going to incorporate @Mikeage's info about ssh -X into my answer.
– Paul Tomblin
Mar 19 '09 at 15:17
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