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How do I copy folder with files to another folder in Unix/Linux? [closed]
... long file paths when typing in the terminal, you can hit Tab after you've started typing the path and you will either be presented with choices, or it will insert the remaining part of the path.
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Can't stop rails server
...y in step 1.
OR
Remove file(server.pid) under Rails.root/tmp/pids/ and restart server.
OR
open app in another port by using command:
rails s -p 3001
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What is the advantage to using bloom filters?
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I will start with the explanation of what is a bloom filter, what it can and can't do, why do we need it, show an intuitive description how it works and then give some example when they can be useful.
So a standard bloom filter is ...
AttributeError: 'module' object has no attribute 'tests'
...going on because I fixed the import within my test file and sure enough it started working.
To validate your test case just try import the test case file in python console.
Example:
from project.apps.app1.tests import *
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How can I grep for a string that begins with a dash/hyphen?
I want to grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
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How to connect to my http://localhost web server from Android Emulator
... command, shows net as 172.17.100.15/255.255.255.0
Begin pinging addresses starting at 172.17.100.1, got a hit on `172.17.100.2'. Not sure if a firewall would interfere but it didn't in my case
Maybe this can help someone else figure it out for other emulators.
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Loading a properties file from Java package
...va/lang/String/foo.txt on the classpath.
Using an absolute path (one that starts with '/') means that the current package is ignored.
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How to suppress scientific notation when printing float values?
...his:
>>> '{:.20f}'.format(a)
'-0.00000000000000007186'
Update
Starting in Python 3.6, this can be simplified with the new formatted string literal, as follows:
>>> f'{a:.20f}'
'-0.00000000000000007186'
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How to stop an app on Heroku?
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In Rails, if your Procfile has a line started with web, then use heroku ps:scale web=0, else you may receive no such process type app defined in Procfile.
– Minh Triet
Sep 18 '14 at 7:51
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Parcelable encountered IOException writing serializable object getactivity()
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@user2896762: In general, on Android, start from the bottom of the stack trace and work your way up to the last Caused by line. That's usually going to point to the specific problem. All the other stanzas of the stack trace represent wrapped exceptions around the...