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Could not open a connection to your authentication agent
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@DanielM: SSH needs two things in order to use ssh-agent: an ssh-agent instance running in the background, and an environment variable set that tells SSH which socket it should use to connect to the agent (SSH_AUTH_SOCK IIRC). If you just run ssh-agent then t...
Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
...ular expression. This is sets and counting.
Regular expressions are about order.
In your life as a programmer you will asked to do many things that do not make sense. Learn to dig a level deeper. Learn when the question is wrong.
The question (if it mentioned regular expressions) is wrong.
Pseud...
Functional programming vs Object Oriented programming [closed]
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Serialize an object to string
... simply tried to keep my code sample as near as possible to the OP one, in order to highlight my point which is all about object types. Anyway its good to remember anyone that the using statement is the best friend both to us and to our dear IDisposable implementing objects ;)
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Listing each branch and its last revision's date in Git
... Nice. I'd add "| tac" to the end to get it sorted in reverse order so the recently-touched branches are quickly visible.
– Ben
Oct 1 '13 at 18:56
1
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Copying files from Docker container to host
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In order to copy a file from a container to the host, you can use the command
docker cp <containerId>:/file/path/within/container /host/path/target
Here's an example:
$ sudo docker cp goofy_roentgen:/out_read.jpg .
H...
JavaScript equivalent of jQuery's extend method
...ntially work as settings for the rest of the code within the function. In order to prevent having to specify all of the settings within the config object, I use jQuery's extend method to fill in a new object, settings with any default values from the default object if they weren't specified...
Programmatically select text in a contenteditable HTML element?
...s.
There is a subtle difference when selecting a text range in a span. In order to be able to pass the text start and end index, you have to use a Text node, as described here:
If the startNode is a Node of type Text, Comment, or CDATASection,
then startOffset is the number of characters from...
Exploring Docker container's file system
...container is in the data folder of docker, normally in /var/lib/docker. In order to start and inspect a running containers file system do the following:
hash=$(docker run busybox)
cd /var/lib/docker/aufs/mnt/$hash
And now the current working directory is the root of the container.
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Java Multiple Inheritance
...s Pegasus implements Avialae, Equidae {}
Adding from the comments:
In order to reduce duplicate code, you could create an abstract class that contains most of the common code of the animals you want to implement.
public abstract class AbstractHorse implements Equidae {}
public class Horse ext...