Atom Packages Directory

a package directory for a text editor of the 21st Century

Quantum Shell by Seth David Bullock

Install with:
    apm install quantum-shell
  

Quantum Shell for Github’s Atom!

A command line interface built directly into Atom! This package is largely inspired by (but not a direct fork of) terminal-panel. The goal of this project is to provide users with a simple, yet powerful tool, that no self-proclaimed ‘Hackable’ editor should be without. It is 1.0 ready and should make the transition in June seamlessly. Currently, this package should run as expected on Atom >=1.0.12 with any UNIX like operating system. Windows is now fully supported and shouldn’t suffer any limitations that aren’t also present on other platforms. To get started just search for and download quantum-shell in the Atom package manager, or at the command line type apm install quantum-shell and press ctrl-shift-q to get started. Happy Hacking!

Features

Multiple Terminals, as of v-0.6.0!

You can now run as many terminals as you would like side by side. Each will have its own unique history, aliases, environment and even underlying shell program! To run different shells next to one another, simply navigate to Settings>Packages>quantum-shell>ShellName and change the default. Now every new terminal you create will use that shell program until you destroy it. Even if you close Atom all the way down and restart it, you’re settings will be preserved and you can continue to simultaneously run as many different shells as you would like!

Full history support just like you’re used to in bash

Just use the up and down arrow keys when the input field is focused to quickly navigate through your history, or use the history builtin to view a list of your past commands. A configuration option for limiting the number of commands to record can now be found under Settings>Packages>quantum-shell>MaxHistory. The default is 100.

Rotating Tab Completion

At the request of user @clebrun, I have added a rotating tab completion feature! The way it works is simple. If you have not yet pressed the space-bar, pressing the tab key will cause quantum-shell to rotate through all of the program names referenced in your $PATH variable (including quantum-shell builtins) that match what you have already typed. If you have pressed the space-bar (meaning that you are working on typing word number two or higher), pressing the tab key will rotate through all of the file names along the relative path you have typed. This is a very exciting new feature, so please feel free to share any comments and/or bugs that you might discover!

Customizable Prompt String

The prompt string is one of the defining features of any good shell program, and up until now quantum-shell’s has been rather bland, and hard-coded into the program. But that is no more! From now on, anyone using quantum-shell can customize their own prompt string under Settings>Packages>quantum-shell>PromptString. Not only that, but I’ve included semantics for several special escape characters as outlined below: * \! - the current history number of this command * \@ - current time in 12-hour HH:MM {am,pm} format * \# - the current command number of this command * \$ - a # if superuser, $ otherwise * \A - current time in 24-hour HH:MM {am,pm} format * \d - current date in Weekday Month Date format * \h - the current hostname up to the first . * \H - the current hostname * \s - the shell program used to run all non-builtin commands * \t - current time in 24-hour HH:MM:SS format * \T - current time in 12-hour HH:MM:SS format * \u - the user’s preferred username * \v - the current version of quantum-shell in X.Y format * \V - the current version of quantum-shell in X.Y.Z format * \w - the full path of the current working directory * \W - the basename only of the current working directory * \\ - a literal backslash

Feel free to combine these in any way you see fit, and make quantum-shell truly your own!

Full alias and unalias support

For the sake of simplicity of implementation, the syntax is a little different in quantum-shell than other shells. It is: alias <key> = <expansion> There are a few things to know about this syntax. First, you can only define one alias at a time. Second, the key must be a single word, containing absolutely no whitespace. Third, the = must have whitespace on either side of it (i.e. not touching anything). And finally, all of the words to the left of the = will be concatenated together and seperated by a single space. Whenever quantum-shell detects the key in an input command, it will be replaced with expansion, unless the key is contained within single '' or double "" quotes. A common and useful example would be alias ll = ls -l Aliases are serialized, so you should only ever have to type them out once. Even if you completely close Atom down, they should still be there when you return.

A custom atom builtin

Using the standard atom command line tool is a bit redundant, since you’re obviously already running atom! For that reason I’ve provided a custom override for the atom command that will allow you to simulate any registered event being dispatched wherever you want. The syntax is pretty simple, there are two options: atom <command> or atom <selector> <command> <command> is the (non-humanized) command you would like to dispatch. The optional <selector> is where you would like the command to be dispatched. It defaults to the <atom-workspace> tag, since that’s what you’ll probably want to target most often anyway.

As an example, imagine you want to toggle full-screen mode, but you just can’t remember what that darn key-binding is. The solution is quite simple; just pull up quantum-shell, type atom window:toggle-full-screen and volia! you’re now in full-screen mode.

However, if that seems like a lot to type (probably because it is), try combining the atom builtin with the alias builtin. Something like: alias tfs = atom window:toggle-full-screen Then whenever you want to activate that command just type a simple tfs into the command line and let quantum-shell do the rest!

If you’re thinking to yourself, “Wow, this is an incredibly powerful alternative to memorizing all of those keybindings…”, then I’d say you and I think a lot alike, my friend :wink:

Looks Good in any Theme!

light

dark

Keywords: terminal, tab-completion, windows support, alias, prompt string, history, command line Suggest keywords
Fork me on GitHub