Use the funced command to edit the definition of a
function. If there is no function with the name specified, a skeleton function is inserted, if a function exist, the definition will be shown in your editor or on the command line.
By default, funced edits functions using the text editor in your $EDITOR variable, if set; otherwise it uses the built-in editor.
- <code>-e command</code> or <code>--editor command</code> Open the function body inside the text editor given by the command (for example, "vi"). The command 'fish' will use the built-in editor.