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How do I kill background processes / jobs when my shell script exits?
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but can also be used to execute something if the shell exits:
trap "killall background" EXIT
It's a builtin, so help trap will give you information (works with bash). If you only want to kill background jobs, you can do
trap 'kill $(jobs -p)' EXIT
Watch out to use single ', to prevent the sh...
Set value of hidden field in a form using jQuery's “.val()” doesn't work
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Andy, thanks for the quick response. I actually tried with the "#texens" first, and then with "#input:hidden#texens" and neither of them seemed to work. When I changed the input type in the form from "hidden" to "text", and "#input:hidden:texens" to "#input:text:tex...
Find and extract a number from a string
... NOTE: If the string contains multiple numbers, this answer will run them all together into a single number. E.g. "a12bcd345" results in "12345". (Which may be desirable or not, depending on the goal.) This is different than the top-voted Regex solution, which would return "12" for the case above. ...
How can I scroll a web page using selenium webdriver in python?
...selenium webdriver to parse through facebook user friends page and extract all ids from the AJAX script. But I need to scroll down to get all the friends. How can I scroll down in Selenium. I am using python.
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JavaScript null check
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@bfavaretto: Yep, so it might actually be a typo. But you never know… :D
– Ry-♦
May 21 '13 at 14:42
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Control the dashed border stroke length and distance between strokes
...th border-image
Compatibility: It offers great browser support (IE 11 and all modern browsers). A normal border can be set as a fallback for older browsers.
Let's create these
These borders will display exactly the same cross-browser!
Step 1 - Create a suitable image
This example is 15 pixel...
Passing a method as a parameter in Ruby
...ightedknn(data, vec1, k = 5, weightf = gaussian)
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weight = weightf.call(dist)
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end
Just note that you can't set a default argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, it...
Why is lock(this) {…} bad?
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It is bad form to use this in lock statements because it is generally out of your control who else might be locking on that object.
In order to properly plan parallel operations, special care should be taken to consider possible deadlock situations, and having an unknown number of lock en...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
I just installed posgresql with homebrew and when I go on to type the command
22 Answers
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Dot character '.' in MVC Web API 2 for request such as api/people/STAFF.45287
... http://somedomain.com/api/people/staff.33311 (just like sites as LAST.FM allow all sort of signs in their RESTFul & WebPage urls, for example " http://www.last.fm/artist/psy'aviah " is a valid url for LAST.FM).
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