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Automate ssh-keygen -t rsa so it does not ask for a passphrase

... -t rsa with out a password i.e. enter at the prompt. How can I do that from a shell script? 7 Answers ...
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Most efficient way to make the first character of a String lower case?

...y if and only if the string is in ASCII. This was the fastest. c[0] |= ' ' from Mike's comment gave the same performance. char c[] = string.toCharArray(); c[0] += 32; string = new String(c); test4 used StringBuilder. StringBuilder sb = new StringBuilder(string); sb.setCharAt(0, Character.toLowerC...
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Easy way to prevent Heroku idling?

...eature that will ping your site twice per minute, thus preventing the dyno from idling. More or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great). Note: to all those saying it doesn't work: the important part in ...
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django MultiValueDictKeyError error, how do I deal with it

... is_private = request.POST['is_private'] else: is_private = False 3 from django.utils.datastructures import MultiValueDictKeyError try: is_private = request.POST['is_private'] except MultiValueDictKeyError: is_private = False ...
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How to run code when a class is subclassed? [duplicate]

...e. Although there doesn't seem to be any harm in making SuperClass inherit from object... it's definitely necessary for Watcher to inherit from type, not object. – ArtOfWarfare Sep 19 '15 at 14:36 ...
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How do you do a ‘Pause’ with PowerShell 2.0?

...is a composite of <1> above with the ISE workaround/kludge extracted from the proposal on Adam's Tech Blog (courtesy of Nick from earlier comments on this page). I made two slight improvements to the latter: added Test-Path to avoid an error if you use Set-StrictMode (you do, don't you?!) and ...
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Check if PHP session has already started

I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines: ...
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What is thread safe or non-thread safe in PHP?

...ways choose non-thread safe version because I always use nginx, or run PHP from the command line. The non-thread safe version should be used if you install PHP as a CGI binary, command line interface or other environment where only a single thread is used. A thread-safe version should be used if y...
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Can Flask have optional URL parameters?

... You should add here the info from the external link because if that link will no longer be valid, your answer will be damaged. – tomab Oct 21 '15 at 9:29 ...
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Combined area of overlapping circles

... You'll need to subtract the center connected polygon for the hole from the total and add the circle slices for that polygon to the total. – Ants Aasma Nov 3 '09 at 15:03 3...