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How to set focus on input field?

...e – Eugene Fidelin Apr 11 '14 at 16:05 @ecancil: I like your approach because it's simplest, but you need to set the t...
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Test whether string is a valid integer

...q "$1" ] 2>/dev/null then echo "$1 is an integer !!" else echo "ERROR: first parameter must be an integer." echo $USAGE exit 1 fi This approach also accounts for negative numbers, which some of the other solutions will have a faulty negative result, and it will allow a prefix of...
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Copy the entire contents of a directory in C#

...to assemble the parameters for xcopy as string, which introduces plenty of error potential. Also the sample does not mention any error handling for the results of the started process, which i would expect, because contrary to other methods this would fail silently. – cel sharp ...
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How to automatically start a service when running a docker container?

...at like tail -F CMD service mysql start && tail -F /var/log/mysql/error.log This is often preferred when you have a single service running as it makes the outputted log accessible to docker. Or use foreground command to do this CMD /usr/bin/mysqld_safe This works only if there is ...
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Escape a string for a sed replace pattern

... thanks! if anyone else gets syntax error when trying to use it, just like me, just remember to run it using bash, not sh – Konstantin Pereiaslov Apr 8 '13 at 18:56 ...
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How do I use CSS in Django?

... This caused me problems too for a while (404 not found errors). The missing bit for me was to edit the STATICFILES_DIRS tuple in settings.py to give me this: STATICFILES_DIRS = ( # Put strings here, like "/home/html/static" or "C:/www/django/static". # Always use forward...
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Writing a list to a file with Python

...hon 2 use 'r' instead of 'rb' when reading the pickle if you get the "ValueError: insecure string pickle" – queise Sep 17 '18 at 15:34 1 ...
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Rebase a single Git commit

... my error, rebase does indeed move the branch on master, it has to be reset – CharlesB Jan 31 '13 at 22:01 1 ...
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Deny all, allow only one IP through htaccess

... This can be improved by using the directive designed for that task. ErrorDocument 403 /specific_page.html Order Allow,Deny Allow from 111.222.333.444 Where 111.222.333.444 is your static IP address. When using the "Order Allow,Deny" directive the requests must match either Allow or Deny, i...
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Javascript Cookie with no expiration date

... That number didn't work for me. After a bit of trial and error, the highest number I was able to use was 99983090 (expires=Fri, 12 Sep 275760 18:10:24 GMT). Anything higher returned "Invalid Date" – JeffreyPia Apr 18 '16 at 18:16 ...