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Couldn't connect to server 127.0.0.1:27017
...or mongodb from http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/ and I had the same error as you only when I ran mongo before actually running the mongo process with mongod. I thought installing mongodb would also launch it but you need to launch it manually with mongod before you do...
How to uninstall Jenkins?
...robably very simple, but I can't find any hint anywhere. So how one is supposed to do that, in general and specifically on Mac?
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Git keeps asking me for my ssh key passphrase
... that you uploaded the public key to Github.
To save key permanently on macOS:
ssh-add -K
This will persist it after you close and re-open it by storing it in user's keychain.
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How to determine if a process runs inside lxc/Docker?
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The most reliable way is to check /proc/1/cgroup. It will tell you the control groups of the init process, and when you are not in a container, that will be / for all hierarchies. When you are inside a container, you will see the ...
Programmatically relaunch/recreate an activity?
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recreate method call repaetdedly fourcefully close the app
– SAndroidD
May 22 '14 at 8:47
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Difference between java.io.PrintWriter and java.io.BufferedWriter?
...e writing to the file.
There is no such concept as a "PrintReader"; the closest you will get is probably java.util.Scanner.
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Java Look and Feel (L&F) [closed]
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There is a lot of possibilities for LaFs :
The native for your system
The nimbus LaF
Web LaF
The substance project (forked into the Insubstantial project)
Napkin LaF
Synthetica
Quaqua (looks like aqua from MacOS X)
Seaglass
JGoodies
Liquidlnf
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How to erase the file contents of text file in Python?
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In python:
open('file.txt', 'w').close()
Or alternatively, if you have already an opened file:
f = open('file.txt', 'r+')
f.truncate(0) # need '0' when using r+
In C++, you could use something similar.
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Is module __file__ attribute absolute or relative?
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Remember, for this purpose, sys.path doesn't include ''.
– agf
Aug 19 '11 at 4:35
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Repeat command automatically in Linux
Is it possible in Linux command line to have a command repeat every n seconds?
13 Answers
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