4. Message and Input Bar

Command: echo string

Display string in the message bar.

Command: colon &optional initial-input

Read a command from the user. initial-text is optional. When supplied, the text will appear in the prompt.

String arguments with spaces may be passed to the command by delimiting them with double quotes. A backslash can be used to escape double quotes or backslashes inside the string. This does not apply to commands taking :REST or :SHELL type arguments.

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