`diff-buffer-with-file`. I just googled for &quot;emacs compare buffer file changed&quot;.

Another option is to hit `C-x s` followed by `d`. This also shows a diff between a buffer and its file. 

Most useful if the buffer of interest is the only one that needs saving.

Steve Sanderson gave a very interesting presentations at Techdays 2012 in the Netherlands. In one of them [he presented](http://www.techdays.nl/AgendaDetail.aspx?cid=2159&amp;lang=en) a library that he used for client-server communication in MVC application: Upshot.

I was really amazed how easy it was to use it, so I wanted to download and test it. I found the download link here [through NuGet](http://nuget.org/packages/Upshot), but I cannot find any documentation. Does anyone have something that works? I would also appreciate the sample code that Steve showed as during presentation.

*EDIT:*

I found the online presentation I attended at Techdays. It&#39;s soooo much worth seeing. You will get a glance of what upshot is capable of and also get an idea how to start with it. Good luck and have fun.

The link: http://channel9.msdn.com/Events/TechDays/Techdays-2012-the-Netherlands/2159


Where can I find Upshot.js examples and documentation?

I want to zip a folder containing files. So inorder to do that i need to loop through the entire file list and execute 7za command. (7zip command line version)


    for /f %%A in (&#39;&quot;G:\Files Sample\zip\txt\*.t
    xt&quot;&#39;) do 7za -tzip &quot;%%A.zip&quot; &quot;%%A&quot;


However windows says that this command is not valid. 

Error message is 

    %%A was unexpected at this time

How do i overcome this issue ?

%%A was unexpected at this time

Is there an emacs command to show the difference between a buffer and its file?

For example, I&#39;ve made some edits to a buffer, forgotten what they were, and now I need to save the buffer to its file, but want to check what I have actually changed first.

Command to show difference between a buffer and its corresponding file

<p>Is there an emacs command to show the difference between a buffer and its file?</p>
<p>For example, I've made some edits to a buffer, forgotten what they were, and now I need to save the buffer to its file, but want to check what I have actually changed first.</p>


I have 2 edits very close by (and therefore part of the same hunk), that I&#39;d like to commit separately. Is it possible to split a hunk from within magit?

Splitting a hunk with magit

When cursor on one parentheses, how to jump to the pairing parentheses. Good to work in **emacs -nw** . 

Just like **%** in Vim.

;;After got hint from @Lindy, @Francesco, I found more:

      C-M-f     Move forward over a balanced expression
      C-M-b     Move backward over a balanced expression
      C-M-k     Kill balanced expression forward
      C-M-SPC   put the mark at the end of the sexp.
      C-M-n  Move forward over a parenthetical group 
      C-M-p  Move backward over a parenthetical group 
      ;; C-M key binding can also be done by --&gt; ESC Control-key

      ;;And put this to .emacs, it will highlight opening/closing parens:
      (show-paren-mode 1)

With emacs, how to go to the pairing (balancing) parentheses

I use Emacs for years, and nowadays, I write a lot of files in org mode, such as notes, plans/conclusions or something else. However but most website support markdown-style instead of org-style. StackOverflow is an example. :)

Can someone tell me the exact difference between these two? Pros and cons?
And which did you choose and why?

Compare markdown or org mode

I am using `package` to manage my Emacs extensions. In order to synchronize my Emacs settings on different computers, I&#39;d like a way to specify a list of package names in `.emacs` file and then `package` could automatically search and install the packages, so that I don&#39;t need to install them manually by calling `M-x package-list-packages`. How to do that?

How to automatically install Emacs packages by specifying a list of package names?

How do I launch GUI Emacs from the command line in OSX?

I have downloaded and installed Emacs from http://emacsformacosx.com/.

I&#39;ll accept an answer fulfilling all of the following criteria:

1. The emacs window opens *in front of* my terminal window.
1. Typing &quot;emacs&quot; launches a GUI Emacs window.  Finding files in that window will default to looking in the directory from where I started Emacs.
2. Typing &quot;emacs foo.txt&quot; when foo.txt exists launches a GUI Emacs window with foo.txt loaded.
3. Typing &quot;emacs foo.txt&quot; when foo.txt does *not* exist launches a GUI Emacs window with an empty text buffer named &quot;foo.txt&quot;.  Doing ^X^S in that buffer will save foo.txt in the directory from where I started Emacs.


How to launch GUI Emacs from command line in OSX?

I have changed several files in a git repository, but have not committed them yet.

I can get a list of the changes by just invoking `git status`. But how do I get a listing of the *lines* or the *content* that I have changed, in addition to the filenames?

I initially thought about using [git diff][1], but it seems to be useful only for comparing already commited changes.

Usually I just do `meld .`, but on this case I&#39;m connected to an external server via ssh.


  [1]: http://schacon.github.com/git/git-diff.html

git - diff of current changes before committing

Is there a way to get the list of all new/deleted/modified directories/files in local/remote repository w.r.t each other in GIT ?


GIT list of new/modified/deleted files

I&#39;m using [Git Bash][1] on Windows 7. When I run `git diff`, I see this: 

![][2]

However, I&#39;m unable to get back to a regular prompt. Pressing &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;C&lt;/kbd&gt; seems to work, but as soon as I start typing a command, it&#39;s covered up with `(END)` as in that image.


  [1]: https://git-for-windows.github.io/
  [2]: http://i.stack.imgur.com/VqmB9.jpg

How do I exit the results of &#39;git diff&#39; in Git Bash on windows?

I know there are several threads on this already, but no one has fully explained exactly how to perform the initial diff to create the patch file, then how to *apply* that patch to the initial directory to update it.

In my case, there is a directory of files that anyone can download from the web. I have taken that directory and made changes to it, and want to create a patch file such that others can apply it to the downloaded directory to reproduce exactly what I have in my modified directory.

Help? What do I need to tell the other person with respect to how to apply my patch?

How to create a patch for a whole directory to update it?

The `diff` program, in its various incarnations, is reasonably good at computing the difference between two text files and expressing it more compactly than showing both files in their entirety.  It shows the difference as a sequence of inserted and deleted chunks of lines (or changed lines in some cases, but that&#39;s equivalent to a deletion followed by an insertion).  The same or very similar program or algorithm is used by `patch` and by source control systems to minimize the storage required to represent the differences between two versions of the same file.  The algorithm is discussed [here][1] and [here][2].

But it falls down when blocks of text are *moved* within the file.

Suppose you have the following two files, `a.txt` and `b.txt` (imagine that they&#39;re both hundreds of lines long rather than just 6):

    a.txt   b.txt
    -----   -----
    1       4
    2       5
    3       6
    4       1
    5       2
    6       3

`diff a.txt b.txt` shows this:

    $ diff a.txt b.txt 
    1,3d0
    &lt; 1
    &lt; 2
    &lt; 3
    6a4,6
    &gt; 1
    &gt; 2
    &gt; 3

The change from `a.txt` to `b.txt` can be expressed as &quot;Take the first three lines and move them to the end&quot;, but `diff` shows the complete contents of the moved chunk of lines twice, missing an opportunity to describe this large change very briefly.

Note that `diff -e` shows the block of text only once, but that&#39;s because it doesn&#39;t show the contents of deleted lines.

Is there a variant of the `diff` algorithm that (a) retains `diff`&#39;s ability to represent insertions and deletions, and (b) efficiently represents moved blocks of text without having to show their entire contents?


  [1]: http://c2.com/cgi/wiki?DiffAlgorithm
  [2]: http://en.wikipedia.org/wiki/Diff#Algorithm

Content Type	Original Author	Original Content on Stackoverflow
Question	bph	View Question on Stackoverflow
Solution 1 - Emacs	choroba	View Answer on Stackoverflow
Solution 2 - Emacs	bph	View Answer on Stackoverflow

Command to show difference between a buffer and its corresponding file

Emacs Problem Overview

Emacs Solutions

Solution 1 - Emacs

Solution 2 - Emacs

%%A was unexpected at this time

Where can I find Upshot.js examples and documentation?

Attributions