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Cannot download Docker images behind a proxy
...
First, create a systemd drop-in directory for the Docker service:
mkdir /etc/systemd/system/docker.service.d
Now create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
[Service]
Environment="HTTP_PROXY=http://proxy.example.com:80...
Choosing between std::map and std::unordered_map [duplicate]
Now that std has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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How to for each the hashmap? [duplicate]
...anything with the combo box once its created. Or are the values not in the order you want? Or did you need the keys instead of the values in the combo box? I think most would agree that any of the 3 answers so far should work fine, so likely there's a problem with apply the answer or another proble...
How to load all modules in a folder?
... pyc files can be included easily, and you are forgetting .pyd or .so libs etc too
– Anurag Uniyal
Mar 5 '12 at 3:26
36
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Using vagrant to run virtual machines with desktop environment
...ant user. To do this you need to permit anyone to start the GUI: sudo vim /etc/X11/Xwrapper.config and edit it to allowed_users=anybody.
Next, install the VirtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y ...
How can I read a large text file line by line using Java?
...les.lines(Paths.get(filename), Charset.defaultCharset())) {
lines.forEachOrdered(line -> process(line));
}
Printing all the lines in the file:
try (Stream<String> lines = Files.lines(file, Charset.defaultCharset())) {
lines.forEachOrdered(System.out::println);
}
...
How to install latest version of git on CentOS 7.x/6.x
...ocal/git install
#
# echo 'export PATH=$PATH:/usr/local/git/bin' >> /etc/bashrc
# or
# echo 'export PATH=$PATH:/usr/local/git/bin' > /etc/profile.d/git.sh
#
# source /etc/bashrc
HINT 1:
Updated method of adding compiled git bin directory to bashrc. Because echo "export PATH=$PATH:/...
Comparing Dates in Oracle SQL
...dg.LAB_CODIGO = 56
and trunc(g.FECHA) > to_date('01/02/15','DD/MM/YY')
order by g.FECHA;
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Unique Key constraints for multiple columns in Entity Framework
...et; }
The second parameter in the attribute is where you can specify the order of the columns in the index.
More information: MSDN
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Environment variables in Mac OS X
...redefined in subshells, not for environment variables that are inherited.
/etc/profile: this is loaded before ~/.profile, but is otherwise equivalent. Use it when you want the variable to apply to terminal programs launched by all users on the machine (assuming they use bash).
~/.MacOSX/environment....