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How to check if a process id (PID) exists
...s discussing kill and race conditions are exactly right if the body of the test is a "kill". I came looking for the general "how do you test for a PID existence in bash".
The /proc method is interesting, but in some sense breaks the spirit of the "ps" command abstraction, i.e. you dont need to go ...
Rails: Get Client IP address
...-guess. If you access the variables directly you assume responsibility for testing them in the correct precedence order. Proxies introduce a number of headers that create environment variables with different names.
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Opening port 80 EC2 Amazon web services [closed]
...to your instance using security group rules." docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/…
– foxontherock
Apr 21 '16 at 18:20
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Sort hash by key, return hash in Ruby
... @zachaysan but it does work: h.sort{|a,z|a<=>z}.to_h (tested 2.1.10, 2.3.3)
– whitehat101
Dec 2 '16 at 6:27
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How to use git merge --squash?
... deal with any manual fixes in your feature branch. That also lets you run tests and make sure your feature branch works correctly. Then, you are guaranteed that you can do an automatic merge of your feature branch into master.
– Dan Kohn
Jun 2 '15 at 1:44
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Debug a java application without starting the JVM with debug arguments
...Windows). It is marked as experimental, so you may want to try it out on a test machine first.
Usage:
jsadebugd <pid>
jdb -connect sun.jvm.hotspot.jdi.SADebugServerAttachingConnector:debugServerName=localhost
The connector name withe arg can be found using jdb -listconnectors.
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What is the C# version of VB.net's InputDialog?
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The form is not visible when used in unit testing, this post will be helpful. stackoverflow.com/questions/1218517/…
– Ray Cheng
May 13 '15 at 16:58
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CURL alternative in Python
...o()['Content-Length']
Your cURL call using urllib2 instead. Completely untested.
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How to compute the sum and average of elements in an array?
...ster (or as fast). In Chrome 65 and most firefox reduce is better on that test.
– Sir Robert
Mar 27 '18 at 14:43
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How to dump a dict to a json file?
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If you're using Path:
example_path = Path('/tmp/test.json')
example_dict = {'x': 24, 'y': 25}
json_str = json.dumps(example_dict, indent=4) + '\n'
example_path.write_text(json_str, encoding='utf-8')
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