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How to check if a string contains a substring in Bash

...ash, and, of course Bash: stringContain() { [ -z "${2##*$1*}" ]; } Then now: $ if stringContain 'o "M3' 'echo "My String"';then echo yes;else echo no;fi no $ if stringContain 'o "M' 'echo "My String"';then echo yes;else echo no;fi yes ... Or if the submitted string could be empty, as pointed o...
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How to force a web browser NOT to cache images

...e current time on the server. Generate time by Javascript with performance.now() or by Python with time.time() share | improve this answer | follow | ...
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Can't find the 'libpq-fe.h header when trying to install pg gem

...PostgreSQL/9.1/include/" gem install pg After that, it works, because it now knows where to find the missing library. Just replace the path with the right location for your libpq-fe.h share | impr...
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Best way to resolve file path too long exception

...iving me this error (I tried looking at google but couldn;t find anything, now if anyone knows any trick to solve this problem please respond otherwise thanks for looking at it) ...
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What is the difference between re.search and re.match?

...e optional pos argument regardless of whether a newline precedes it. Now, enough talk. Time to see some example code: # example code: string_with_newlines = """something someotherthing""" import re print re.match('some', string_with_newlines) # matches print re.match('someother', ...
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Why is Python running my module when I import it, and how do I stop it?

...t declarations. Instead, they are real live statements which are executed. If they were not executed your module would be .. empty :-) Anyway, the idiomatic approach is: # stuff to run always here such as class/def def main(): pass if __name__ == "__main__": # stuff only to run when not ca...
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How to raise a ValueError?

... Did you know that, if you don't want to use the message, you can just raise ValueError instead of raise ValueError()? – Tomasz Gandor Sep 20 '19 at 15:14 ...
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Java string to date conversion

...UR_OF_DAY)); Then you can manipulate that with something like: Calendar now = Calendar.getInstance(); mydate.set(Calendar.YEAR,2009); mydate.set(Calendar.MONTH,Calendar.FEBRUARY); mydate.set(Calendar.DAY_OF_MONTH,25); mydate.set(Calendar.HOUR_OF_DAY,now.get(Calendar.HOUR_OF_DAY)); mydate.set(Cale...
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Keeping ASP.NET Session Open / Alive

...HttpContext context) { context.Session["Heartbeat"] = DateTime.Now; } } The key is to add IRequiresSessionState, otherwise Session won't be available (= null). The handler can of course also return a JSON serialized object if some data should be returned to the calling JavaScript. ...
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Why is HttpClient BaseAddress not working?

... you. That solved a problem I've been struggling with for most of two days now, between switching to Azure, back to IIS, and back to IIS Express, which most rudely ignores misplaced or extra forward slashes. Once set in the base class of my RestClient, it was almost invisible and got no attention at...