&lt;kbd&gt;CTRL&lt;/kbd&gt;-&lt;kbd&gt;T&lt;/kbd&gt; is working with [tag stack][1]

&lt;kbd&gt;CTRL&lt;/kbd&gt;-&lt;kbd&gt;O&lt;/kbd&gt; is working with [jumplist][2]

Tag stack and jumplist are different list in vim, but they might have same items when you jumping through tags (eg. using &lt;kbd&gt;CTRL&lt;/kbd&gt;-&lt;kbd&gt;]&lt;/kbd&gt;)

  [1]: http://vimdoc.sourceforge.net/htmldoc/tagsrch.html
  [2]: http://vim.wikia.com/wiki/Jumping_to_previously_visited_locations

In the Google Chrome console, if I type `fn` where `fn` is a function, then I get the code for `fn`. In the Node console, typing `require.resolve` simply prints out

    [Function]

Why don&#39;t I get the function definition?

Why doesn&#39;t the Node console display the function code?

Can **Active Admin** use my current **Devise** user model? It already has a column named `admin`, and if it&#39;s `true`, I&#39;d like to bypass the Active admin login, when going to `/admin`.

Is this possible?

Current routes:


    #Active admin
    ActiveAdmin.routes(self)
      
    #Devise
    devise_for :admin_users, ActiveAdmin::Devise.config
    devise_for :users, :path =&gt; &quot;account&quot;

The rest is basically standard Devise + Active admin

Rails 3 - Can Active_admin use an existing user model?

The documentation isn&#39;t especially clear&amp;mdash;&lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;T&lt;/kbd&gt; is to jump back in the tag stack, whereas &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;O&lt;/kbd&gt; is to jump back to the previous cursor position. What&#39;s the difference between &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;T&lt;/kbd&gt; and &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;O&lt;/kbd&gt;? They both appear to exhibit the same behavior.

What is the difference between CTRL-T and CTRL-O in Vim?

<p>The documentation isn't especially clear—<kbd>CTRL</kbd>+<kbd>T</kbd> is to jump back in the tag stack, whereas <kbd>CTRL</kbd>+<kbd>O</kbd> is to jump back to the previous cursor position. What's the difference between <kbd>CTRL</kbd>+<kbd>T</kbd> and <kbd>CTRL</kbd>+<kbd>O</kbd>? They both appear to exhibit the same behavior.</p>


I&#39;d like to be able to search

    /the\b

to find &lt;b&gt;&quot;the&quot;&lt;/b&gt; but not &lt;b&gt;&quot;then&quot;&lt;/b&gt;.

I also tried searching with [very magic][1] turned on:

    /\vthe\b


  [1]: https://davitenio.wordpress.com/tag/very-magic-mode/

In Vim, how do you search for a word boundary character, like the \b in regexp?

How do I set the default font for MacVim?

I have tried adding the following line

    set guifont = Monaco:h12

to either of the following files:

    ~/.vimrc
    ~/.gvimrc
    ~/Applications/MacVim/MacVim.app/Contents/Resources/vim/vimrc
    ~/Applications/MacVim/MacVim.app/Contents/Resources/vim/gvimrc
    ~/Applications/MacVim/MacVim.app/Contents/Resources/vim/.vimrc
    ~/Applications/MacVim/MacVim.app/Contents/Resources/vim/.gvimrc

I restarted MacVim, but it still won&#39;t set the default font. Anything I missed?

__UPDATE:__ I can issue the `set guifont` command in runtime and it works fine. It just doesn&#39;t seem to read it off my startup files.

Set MacVim default font

How can I undo all changes since opening a buffer? I imagine there may be some form of `:earlier` that does this.

**UPDATE**: Many are suggesting solutions for traversing to earlier file writes. This isn&#39;t what I asked for. I want to return to the original state the file was in when I originally loaded it into a buffer, no matter how many writes were made since then.

Undo all changes since opening buffer in vim

When I open a file in vim with (Directory A in) `NERDTree`, it works well.
 
But if I open one more file in another directory (Directory B), it doesn&#39;t  refresh to show the contents of directory B (While it still shows directory A).

Can `NERDTree` automatically refresh by itself?




How to refresh in NERDTree plugin

In some colorschemes the current line highlighting changes background, in others, like Desert, the current line is underlined.

I want to change the current line highlighting in Desert to use a different background color instead of underlining. How can I do that?

My `.vimrc`:

    set cursorline
    highlight Cursorline cterm=bold

Update: `.vimrc` that solves the issue

    colorscheme desert
    set cursorline
    hi CursorLine term=bold cterm=bold guibg=Grey40


How do I change my Vim highlight line to not be an underline?

Suppose that

    (gdb) print *this

resulted in 20 lines of output. Yes, there would be `Type &lt;return&gt; to continue, or q &lt;return&gt; to quit`, but I&#39;d like to scroll back to the top after I got to the bottom of the output.

I don&#39;t think http://sourceware.org/gdb/onlinedocs/gdb/TUI-Keys.html answers my question. It states

&gt; &amp;lt;PgUp&amp;gt; &lt;br&gt;
&gt; Scroll the active window one page up.

but when the focus is on the command window, &lt;kbd&gt;PgUp&lt;/kbd&gt; rewinds the command history, instead of scrolling back in the command window. Is it only me who suffers from this behavior?

I&#39;m using [PuTTY][1] in order to SSH to Red Hat Linux (if this makes any difference).

  [1]: http://en.wikipedia.org/wiki/PuTTY


How can I scroll back in GDB&#39;s command window in the TUI mode?

There _is_ a `Duplicate` command in the Edit Menu (with a default shortcut of &lt;kbd&gt;⌘&lt;/kbd&gt;&lt;kbd&gt;D&lt;/kbd&gt;), but it is (as [Halley][1] pointed out) meant for duplication in the Interface Builder part of Xcode.

**So, how do you (*easily*) duplicate a line in Xcode 4?**

----------
[Related question][2] (with a working answer) for Xcode 3 ... and which does not work for Xcode 4.

----------
Why not just copy &amp; paste?
-
Because it is tedious and entails too much hand-acrobatics:

either **(1)**: moving to line beginning and then pressing &lt;kbd&gt;⇧^E&lt;/kbd&gt;, then copying with &lt;kbd&gt;⌘C&lt;/kbd&gt;, moving to new line, alligning cursor, and **finally** pasting with &lt;kbd&gt;⌘V&lt;/kbd&gt;;

or **(2)**: &lt;kbd&gt;^A&lt;/kbd&gt; (set cursor to line begining), &lt;kbd&gt;^SPACE&lt;/kbd&gt; (set mark), &lt;kbd&gt;^E&lt;/kbd&gt; (set cursor to line ending), &lt;kbd&gt;⇧^W&lt;/kbd&gt; (`Select to Mark`; customized), copy, new line, etc.

As Frank Schr&#246;der (in the [related question][3]) put it: 
&gt; The whole point is NOT to use the Cmd-C/Cmd-V shortcuts.


  [1]: https://stackoverflow.com/users/1241690/halley
  [2]: https://stackoverflow.com/questions/551383/xcode-duplicate-delete-line
  [3]: https://stackoverflow.com/questions/551383/xcode-duplicate-delete-line

Xcode duplicate line

I want to make a new key binding to change syntax to, let&#39;s say, HTML or CSS. I searched the official and unofficial documentation to see if there are any answers to my problem.

Sublime Text 2 - key binding to change syntax

I would prefer to have Emacs keybindings in MSVS. In MSVS 2008, this was natively supported, and in MSVS2010 there was an extension to achieve this

http://blogs.msdn.com/b/visualstudio/archive/2010/09/01/emacs-emulation-extension-now-available.aspx

Can i install this extension in MSVS 2012? (I have thus far been unsuccessful...) Is there another way to achieve Emacs keybindings?


Emacs Keybindings in Visual Studio 2012 or 2013

In Xcode 4, I have been sucessfully able to add new custom keyboard shortcuts to move lines around or to duplicate a line:

**/Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Resources/IDETextKeyBindingSet.plist**

    &lt;key&gt;My Custom Keys&lt;/key&gt;
    &lt;dict&gt;
        &lt;key&gt;Move Line Up&lt;/key&gt;
        &lt;string&gt;selectLine:, cut:, moveUp:, moveToBeginningOfLine:, paste:, moveUp:&lt;/string&gt;
        &lt;key&gt;Move Line Down&lt;/key&gt;
        &lt;string&gt;selectLine:, cut:, moveDown:, moveToBeginningOfLine:, paste:, moveUp:&lt;/string&gt;
        &lt;key&gt;Duplicate Line&lt;/key&gt;
        &lt;string&gt;moveToBeginningOfLine:, deleteToEndOfLine:, yank:, insertNewline:, moveToBeginningOfLine:, yank:&lt;/string&gt;
        &lt;key&gt;Delete Line&lt;/key&gt;
        &lt;string&gt;selectLine:, delete:&lt;/string&gt;
    &lt;/dict&gt;

But the **Move Line Up/Down** uses copy/paste, which I would like to avoid. Anyone knows how to move lines with *yank*, just like the **Duplicate Line** I found there: https://stackoverflow.com/questions/10266170/xcode-4-duplicate-line/13369654#13369654



Content Type	Original Author	Original Content on Stackoverflow
Question	Matty	View Question on Stackoverflow
Solution 1 - Vim	number5	View Answer on Stackoverflow

What is the difference between CTRL-T and CTRL-O in Vim?

Vim Problem Overview

Vim Solutions

Solution 1 - Vim

Rails 3 - Can Active_admin use an existing user model?

Why doesn't the Node console display the function code?

Attributions