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How to enter in a Docker container already running with a new TTY
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With docker 1.3, there is a new command docker exec. This allows you to enter a running container:
docker exec -it [container-id] bash
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What is “thread local storage” in Python, and why do I need it?
In Python specifically, how do variables get shared between threads?
5 Answers
5
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What is the use of Enumerable.Zip extension method in Linq?
...ts of two sequences using a specified selector function.
var letters= new string[] { "A", "B", "C", "D", "E" };
var numbers= new int[] { 1, 2, 3 };
var q = letters.Zip(numbers, (l, n) => l + n.ToString());
foreach (var s in q)
Console.WriteLine(s);
Ouput
A1
B2
C3
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How to use git with gnome-keyring integration
...iginal question) but I'm on Ubuntu. For git >= 2.11:
sudo apt-get install libsecret-1-0 libsecret-1-dev
cd /usr/share/doc/git/contrib/credential/libsecret
sudo make
git config --global credential.helper /usr/share/doc/git/contrib/credential/libsecret/git-credential-libsecret
For git < 2.11...
Change Placeholder Text using jQuery
..."#yourtextboxid").attr("placeholder", "variable");
where, if variable is string then you can use like above, if it is variable replace it with the name like "variable" with out double quotes.
eg: $("#youtextboxid").attr("placeholder", variable);
it will work.
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ansible: lineinfile for several lines?
...ame: Set first line at EOF (1/3)
lineinfile: dest=/path/to/file regexp="^string 1" line="string 1"
- name: Set second line after first (2/3)
lineinfile: dest=/path/to/file regexp="^string 2" line="string 2" insertafter="^string 1"
- name: Set third line after second (3/3)
lineinfile: dest=/pat...
How to serialize a lambda?
...:
import java.io.Serializable;
public class Test {
static Object bar(String s) {
return "make serializable";
}
void m () {
SAM s1 = (SAM & Serializable) Test::bar;
SAM s2 = (SAM & Serializable) t -> "make serializable";
}
interface SAM {
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Windows service on Local Computer started and then stopped error
... use the following in the OnStart method:
protected override void OnStart(string[] args)
{
System.Diagnostics.Debugger.Launch();
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}
than you could attach your visual studio to the process and have better debug abilities.
hope this was helpful,
good luck
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How to sort by two fields in Java?
I have array of objects person (int age; String name;) .
16 Answers
16
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How to get UTF-8 working in Java webapps?
....IOException;
public class CharsetFilter implements Filter {
private String encoding;
public void init(FilterConfig config) throws ServletException {
encoding = config.getInitParameter("requestEncoding");
if (encoding == null) encoding = "UTF-8";
}
public void doF...