Don't use terminal prompt for single line commands (sb2nov#276)

Having the terminal prompt makes it harder to copy-paste the command.
Only use them for examples where the output is shown, so it's obvious
that is the command and what is the result.

Search and replaced with:

  rg -F "$ " --files-with-matches | xargs sed -i '' 's/$ //g'

Apps/Octave.md

@@ -15,24 +15,24 @@ As this distributes a compiled version of Octave, installation will be much fast
 
 To [install using homebrew-cask](https://octave-app.org/#installing-with-homebrew-cask) run:
 
-    $ brew tap octave-app/octave-app
-    $ brew cask install octave-app
+    brew tap octave-app/octave-app
+    brew cask install octave-app
 
 ### Homebrew official
 
 You can also install Octave from the official Homebrew source using the method below.
 
 Install `octave` from core Homebrew (which is available by default):
 
-    $ brew install octave
+    brew install octave
 
 **Note**: If `brew` complains about not having a formula for Octave, the following command should fix it:
 
-    $ brew tap --repair
+    brew tap --repair
 
 The command below upgrades Octave and its dependencies to the latest Homebrew-supported versions:
 
-    $ brew update && brew upgrade
+    brew update && brew upgrade
 
 Octave has many dependencies which will be downloaded and installed prior to Octave. **The entire installation process can take a few hours if you are compiling from source.**
 

BashCompletion/README.md

@@ -7,7 +7,7 @@ key. This will help you when writing the bash command in terminal.
 ## Installation
 
 ```bash
-$ brew install bash-completion
+brew install bash-completion
 ```
 
 Bash completion will be installed in `/usr/local/etc/bash_completion.d`.
@@ -21,13 +21,13 @@ For it to work, add this to your `~/.bash_profile`:
 Or simply type:
 
 ```bash
-$ echo "[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion" >> ~/.bash_profile
+echo "[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion" >> ~/.bash_profile
 ```
 
 Restart your bash session:
 
 ```bash
-$ source ~/.bash_profile
+source ~/.bash_profile
 ```
 
 ## Usage
@@ -49,13 +49,13 @@ bisect         cherry         commit         fetch          grep           log
 You can list additional completion packages are available by typing:
 
 ```bash
-$ brew search completion
+brew search completion
 ```
 
 And you can install them using `brew install` commands, for example:
 
 ```bash
-$ brew install docker-completion
+brew install docker-completion
 ```
 
 *You can also manually add a bash completion file into

Docker/README.md

@@ -22,12 +22,12 @@ You'll need `homebrew-cask` to install Docker Toolbox, if you don't have it refe
 
 ### Installation
 
-    $ brew cask install docker-toolbox
+    brew cask install docker-toolbox
 
 ### Quick Start
 
 For quick start find the newly installed _Docker Quickstart Terminal_ and double-click to launch it. Then you can start the _Hello World container_ using:
 
-    $ docker run hello-world
+    docker run hello-world
 
 You can find more about Docker in the [documentation](https://docs.docker.com/).

Git/README.md

@@ -2,20 +2,20 @@
 
 What's a developer without [Git](http://git-scm.com/)? To install, run:
 
-    $ brew install git
+    brew install git
 
 When done, to test that it installed properly you can run:
 
-    $ git --version
+    git --version
 
 And `which git` should output `/usr/local/bin/git`.
 
 Next, we'll define your Git user (should be the same name and email you use for
 [GitHub](https://github.com/)):
 
 ```sh
-$ git config --global user.name "Your Name Here"
-$ git config --global user.email "[email protected]"
+git config --global user.name "Your Name Here"
+git config --global user.email "[email protected]"
 ```
 
 They will get added to your `.gitconfig` file.
@@ -26,7 +26,7 @@ password every time you push a commit you can cache your credentials by running
 the following command, as described in the
 [instructions](https://help.github.com/articles/caching-your-github-password-in-git/).
 
-    $ git config --global credential.helper osxkeychain
+    git config --global credential.helper osxkeychain
 
 ## SSH Config for GitHub
 
@@ -39,7 +39,7 @@ First, we need to check for existing SSH keys on your computer. We do this by
 running:
 
 ```sh
-$ ls -al ~/.ssh
+ls -al ~/.ssh
 # Lists the files in your .ssh directory, if they exist
 ```
 
@@ -55,7 +55,7 @@ email. The default settings are preferred, so when you're asked to "enter a
 file in which to save the key,"" just press Enter to continue.
 
 ```sh
-$ ssh-keygen -t rsa -C "[email protected]"
+ssh-keygen -t rsa -C "[email protected]"
 # Creates a new ssh key, using the provided email as a label
 ```
 
@@ -64,7 +64,7 @@ $ ssh-keygen -t rsa -C "[email protected]"
 Run the following commands to add your SSH key to the `ssh-agent`.
 
 ```sh
-$ eval "$(ssh-agent -s)"
+eval "$(ssh-agent -s)"
 ```
 
 If you're running macOS Sierra 10.12.2 or later, you will need to modify your
@@ -82,15 +82,15 @@ No matter what operating system version you run you need to run this command to
 complete this step:
 
 ```sh
-$ ssh-add -K ~/.ssh/id_rsa
+ssh-add -K ~/.ssh/id_rsa
 ```
 
 ### Adding a new SSH key to your GitHub account
 
 The last step is to let GitHub know about your SSH key. Run this command to copy your key to your clipboard:
 
 ```sh
-$ pbcopy < ~/.ssh/id_rsa.pub
+pbcopy < ~/.ssh/id_rsa.pub
 ```
 
 Then go to GitHub and [input your new SSH

Git/gitignore.md

@@ -29,7 +29,7 @@ node_modules
 
 followed by running the command below, in terminal:
 
-    $ git config --global core.excludesfile ~/.gitignore
+    git config --global core.excludesfile ~/.gitignore
 
 to not track files that are almost always ignored in all Git repositories.
 

Heroku/README.md

@@ -6,41 +6,41 @@
 
 Assuming that you have an Heroku account ([sign up](https://signup.heroku.com) if you don't), let's install the [Heroku Client](https://devcenter.heroku.com/articles/using-the-cli) for the command-line using Homebrew.
 
-    $ brew install heroku/brew/heroku
+    brew install heroku/brew/heroku
 
 The formula might not have the latest version of the Heroku Client, which is updated pretty often. Let's update it now:
 
-    $ heroku update
+    heroku update
 
 Don't be afraid to run `heroku update` every now and then to always have the most recent version.
 
 ## Setup
 
 Login to your Heroku account using your email and password:
 
-    $ heroku login
+    heroku login
 
 If this is a new account, and since you don't already have a public **SSH key** in your `~/.ssh` directory, it will offer to create one for you. It will also upload the key to your Heroku account, which will allow you to deploy apps from this computer.
 
 If it didn't offer create the SSH key for you (i.e. your Heroku account already has SSH keys associated with it), you can do so manually by running:
 
-     $ mkdir ~/.ssh
-     $ ssh-keygen -t rsa
+     mkdir ~/.ssh
+     ssh-keygen -t rsa
 
 Keep the default file name and skip the passphrase by just hitting Enter both times. Then, add the key to your Heroku account:
 
-    $ heroku keys:add
+    heroku keys:add
 
 ## Usage
 
 Once your keys are in place and you are authorized, you're ready to deploy apps. Heroku has a [getting started guide](https://devcenter.heroku.com/articles/python), which has all the information you need (the one linked here is for Python, but there is one for every popular language). Heroku uses Git to push code for deployment, so make sure your app is under Git version control.
 
 A cheat sheet for deployment:
 
-    $ cd myapp/
-    $ heroku create myapp
-    $ git push heroku master
-    $ heroku ps
-    $ heroku logs -t
+    cd myapp/
+    heroku create myapp
+    git push heroku master
+    heroku ps
+    heroku logs -t
 
 The [Heroku Dev Center](https://devcenter.heroku.com/) is where you will find more information.

Homebrew/Cask.md

@@ -10,14 +10,14 @@ downloading `.dmg` files and dragging them to your Applications folder!
 You need Homebrew on your system to use Cask, and you make Cask available by
 adding it as a tap:
 
-    $ brew tap caskroom/cask
+    brew tap caskroom/cask
 
 ## Search
 
 To see if an app is available on Cask you can search on the [official Cask
 website](https://caskroom.github.io/). You can also search in your terminal:
 
-    $ brew search <package>
+    brew search <package>
 
 ## Example Applications
 
@@ -29,7 +29,7 @@ includes features like syntax highlighting, Markdown rendering, preview of
 JSON, patch files, CSV, ZIP files and more.
 
 ```sh
-$ brew cask install \
+brew cask install \
     qlcolorcode \
     qlstephen \
     qlmarkdown \
@@ -46,7 +46,7 @@ $ brew cask install \
 Here are some useful apps that are available on Cask.
 
 ```sh
-$ brew cask install \
+brew cask install \
     alfred \
     android-file-transfer \
     appcleaner \

Homebrew/README.md

@@ -11,12 +11,12 @@ to build things from source, and if you are missing this it's available
 through the App Store > Updates. You can also install it from the terminal
 by running the following:
 
-    $ sudo xcode-select --install
+    sudo xcode-select --install
 
 To install Homebrew run the following in a terminal, hit **Enter**, and follow
 the steps on the screen:
 
-    $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+    /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
 
 ### Setting up your `PATH`
 
@@ -28,7 +28,7 @@ You change your path by adding `/usr/local/bin` to your `PATH` environment varia
 This can be done on a per-user basis by adjusting `PATH` in your `~/.bash_profile`.
 To do this, run:
 
-    $ echo 'PATH="/usr/local/bin:$PATH"' >> ~/.bash_profile
+    echo 'PATH="/usr/local/bin:$PATH"' >> ~/.bash_profile
 
 (If you're using `zsh`, you should do this for `~/.zshrc` in addition to
 `~/.bash_profile`.)
@@ -40,7 +40,7 @@ major shells. An admin password will be required if you modify the file.
 Then, to be able to use `brew` you need to start a new terminal session. After that
 you should make sure everything is working by running:
 
-    $ brew doctor
+    brew doctor
 
 If everything is good, you should see no warnings, and a message that you are
 "ready to brew!".

Homebrew/Usage.md

@@ -2,50 +2,50 @@
 
 To install a package (or **Formula** in Homebrew vocabulary) simply type:
 
-    $ brew install <formula>
+    brew install <formula>
 
 To update Homebrew's directory of formulae, run:
 
-    $ brew update
+    brew update
 
 **Note**: If that command fails you can manually download the directory of
 formulas like this:
 
-    $ cd /usr/local/Homebrew/
-    $ git fetch origin
-    $ git reset --hard origin/master
+    cd /usr/local/Homebrew/
+    git fetch origin
+    git reset --hard origin/master
 
 To see if any of your formulas need to be updated:
 
-    $ brew outdated
+    brew outdated
 
 To update a formula:
 
-    $ brew upgrade <formula>
+    brew upgrade <formula>
 
 Homebrew keeps older versions of formulas installed on your system, in case you
 want to roll back to an older version. That rarely is necessary, so you can do
 some cleanup to get rid of those old versions:
 
-    $ brew cleanup
+    brew cleanup
 
 If you want to see what formulas Homebrew would delete _without actually
 deleting them_, you can run:
 
-    $ brew cleanup --dry-run
+    brew cleanup --dry-run
 
 To see what you have installed (with their version numbers):
 
-    $ brew list --versions
+    brew list --versions
 
 To search for formulas you run:
 
-    $ brew search <formula>
+    brew search <formula>
 
 To get more information about a formula you run:
 
-    $ brew info <formula>
+    brew info <formula>
 
 To uninstall a formula you can run:
 
-    $ brew uninstall <formula>
+    brew uninstall <formula>

Java/README.md

@@ -4,7 +4,7 @@
 
 First you should check if Java is already installed
 
-    $ java -version
+    java -version
 
 If you see an output like below then Java is already installed on your machine so skip to _Add Java to PATH_.
 

MyySQL/README.md

@@ -32,7 +32,7 @@ To connect with the command-line client, run:
 
 (Use `exit` to quit the MySQL shell)
 
-**Note**: By default, the MySQL user `root` has no password. It doesn't really matter for a local development database. If you wish to change it though, you can use `$ mysqladmin -u root password 'new-password'`.
+**Note**: By default, the MySQL user `root` has no password. It doesn't really matter for a local development database. If you wish to change it though, you can use `mysqladmin -u root password 'new-password'`.
 
 ## GUI Tool