It is a shortcut to refer to the upstream branch which the current branch is tracking. So for instance if you&#39;re on branch `topic/fix_blub` which is tracking `origin/topic/fix_blub` then `git merge @{u}` does the same thing as `git merge origin/topic/fix_blub`.

`@{u}` is part of Git&#39;s mini-language for locating revisions, which is described in detail [here](https://www.kernel.org/pub/software/scm/git/docs/gitrevisions.html).

Using [Json.Net][1], I have properties in my objects which need special care in order to serialize / deserialize them. Making a descendant of `JsonConverter`, I managed to accomplish this successfully. This is the common way of doing this:

    public class SomeConverter : JsonConverter
    {
        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            ...
        }
    
        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            ...
        }
    
        public override bool CanConvert(Type objectType)
        {
            ...
        }
    }
    
    class SomeClass
    {
        [JsonProperty, JsonConverter(typeof(SomeConverter))]
        public SomeType SomeProperty;
    }
    
    //Later on, in code somewhere
    SomeClass SomeObject = new SomeClass();
    string json = JsonConvert.SerializeObject(SomeObject, new SomeConverter());

My problem with this code is that I need to introduce my custom converter in every serialization / deserialization. In my project there are many cases that I cannot do that. For instance, I&#39;m using other external projects which make use of Json.Net as well and they will be working on my `SomeClass` instances.  But since I don&#39;t want to or can&#39;t make change in their code, I have no way to introduce my converter.

Is there any way I can register my converter, using some `static` member perhaps, in Json.Net so no matter where serialization / deserialization happens, my converter is always present?

  [1]: http://james.newtonking.com/json


Registering a custom JsonConverter globally in Json.Net

In my program I need to delete an element from a priority queue that is not at the top. Can that be done? If not, please suggest a way to do so except creating your own heap.

How to remove element not at top from priority_queue?

In the book &quot;Git: Version Control for Everyone. Beginner&#39;s Guide&quot; on page 69 there is a suggestion: &quot;As an alternative to `git pull`, we can also use `git fetch` followed by `git merge @{u}`&quot;.

What does `@{u}` mean here?

A search in Google for `git merge @{u}` provides a link to this page https://mislav.net/2013/02/merge-vs-rebase/ where `@{u}` can also be found.

What does the argument @{u} mean in Git?

In the book "Git: Version Control for Everyone. Beginner's Guide" on page 69 there is a suggestion: "As an alternative to <code>git pull</code>, we can also use <code>git fetch</code> followed by <code>git merge @{u}</code>".
What does <code>@{u}</code> mean here?
A search in Google for <code>git merge @{u}</code> provides a link to this page <a href="https://mislav.net/2013/02/merge-vs-rebase/" target="_blank" rel="noopener noreferrer">https://mislav.net/2013/02/merge-vs-rebase/</a> where <code>@{u}</code> can also be found.

I work on feature branches that have annoying big names, so I often end up grepping my current branch name when I need to push up to the feature branch from my local feature branch, like so: 

    git branch | grep &#39;*&#39; | sed &#39;s/* //&#39; | xargs git push origin

This works fine. I want to make this an alias, so I did this in `~/.gitconfig`: 

    [alias]
       pushcur = branch | grep &#39;*&#39; | sed &#39;s/* //&#39; | xargs git push origin

Now, when I run `git pushcur`, I get the following error: 

    usage: git branch [options] [-r | -a] [--merged | --no-merged]

Leading me to believe that the alias is not properly parsing the pipes. Is there something else I should do to achieve the desired alias? 

Pipes in a Git alias?

I want to delete all the tags from a Git repository. How can I do that?

Using `git tag -d tagname` delete the tag `tagname` locally, and using `git push --tags` I update the tags on the git provider.

I tried:

    git tag -d *

But I see that `*` means the files from the current directory.

    $ git tag -d *
    error: tag &#39;file1&#39; not found.
    error: tag &#39;file2&#39; not found.
    ...

Consider I have a lot of tags, and I want to delete them, all.

Delete all tags from a Git repository

Currently I have

1. Empty GitHub repo
2. SSH server repo (main)
3. Local Repo

SSH server repo was the most up-to-date repo (production site) so I did a Git clone from there to local. I then tried to do a `git push` to GitHub.

Everything went OK but then it said something about filename.gz being too large for GitHub. I didn&#39;t need this file so I ran several Git commands to get rid of it from Git cache then pushed back to SSH server.

I don&#39;t see the large file locally but it&#39;s still on SSH server even though `git diff` returns nothing and git push returns &quot;Everything is up-to-date&quot; - And even though the file is not visible in local repo when I try to push to GitHub I still get error about it 

&gt; remote: error: File fpss.tar.gz is 135.17 MB; this exceeds GitHub&#39;s file size limit of 100 MB

I followed steps under &quot;fixing the problem&quot; [listed on GitHub help](http://help.github.com/articles/working-with-large-files) so shouldn&#39;t that have been enough?

How is the file still in the ether when it&#39;s not local or listed in git status/diff/push?

Can&#39;t push to GitHub because of large file which I already deleted

This will be my first git use. I have added new files ( a lot ) to the folder/project ( git local repository).

I went through online tutorials and forums and see i can do 

```
git commit -a
```
So I go to the base folder of the repository and do a 
```
sudo git commit -a
```
But then, some screens comes up and asks me to add a comment which i do. i do not know how to proceed or exit. I do not want to mess up so i did ctrl + Z and did not do anything.

Can you guys please outline the commands I need to use?

    git commit -a 

and 

    git push?

How to add multiple files to Git at the same time

I have a company GitHub account and I want to back up all of the repositories within, accounting for anything new that might get created for purposes of automation. I was hoping something like this:

    git clone git@github.com:company/*.git 

or similar would work, but it doesn&#39;t seem to like the wildcard there. 

Is there a way in Git to clone and then pull everything assuming one has the appropriate permissions?

Content Type	Original Author	Original Content on Stackoverflow
Question	abg	View Question on Stackoverflow
Solution 1 - Git	Peter	View Answer on Stackoverflow

What does the argument @{u} mean in Git?

Git Problem Overview

Git Solutions

Solution 1 - Git

How to remove element not at top from priority_queue?

Registering a custom JsonConverter globally in Json.Net

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