Apps and Commands

Everything before this page is about the Terminal itself. The Terminal is the browser; the apps (also called modules) are what you browse. Each app does one thing: a scanner, a chart, a table.

Every pane has two parts, like a page in a web browser:

• The command bar, like the URL bar: the command that configures the app.
• The app body, like the website itself.

You do not have to type

Click the ⚙️ at the right of the command bar. It opens the control panel, where every parameter of the app is a field. What you set there is written into the command bar, and what you type in the bar shows in the panel. Use whichever you like.

Commands are still worth knowing: a command is the whole configuration in one line, so you can copy it, share it and paste it.

How a command is written

app [SYMBOL] [PARAMETER] [name=value ...]

1. The first word is the app: joy.
2. Then what the app requires, in order. Most apps need a symbol (aapl). Some also need the option parameter to show (oi). Scanners such as flow need neither.
3. Then the options, in any order, each as name=value with no spaces around the =: exp=1-5, rng=10.

The words are separated by single spaces. Upper or lower case does not matter for symbols: joy aapl oi and joy AAPL oi are the same.

Kinds of values

Kind	How to write it	Example
On or off	The name alone turns it on. name=f turns it off.	flip, curve=f
A number	A whole number, no decimals.	limit=20
A list	Values separated by commas, no spaces.	cols=value,price,change
Expirations	Numbers counted from the nearest (1), ranges, or both.	exp=1, exp=1-5, exp=1-5,10
Filters	Conditions separated by commas: a column, then >, < or =, then a number.	filters=value>1000000,volm>100

When a value is not valid, the pane says so and lists the valid ones.

The global symbol

Write @ in place of the symbol and the pane follows the global symbol:

The apps

Each app has a page with its command, every parameter and examples to copy: see the list of apps. The names of the columns and option parameters are on the Data Parameters page.

The first app: flow