CLI Demo Helper

🚀 Examples

Ref: example-minimal.sh file used in above example

#!/usr/bin/env bash

# shellcheck source=./demo-helper.sh
source "$(dirname "$0")/demo-helper.sh"

comment "Starting demo with demo-helper..."
execute "ls -la"

comment_r "Special characters are written as is, such as '\\~!!@(*#@)"
comment_g "It is simple to use, you just need to source the helper script."
comment_b "No extra tool needed."

comment "End of demo!"

✨ Usage

You need to source the demo-helper.sh file, and use provided functions.

The simplest approach is to copy the demo-helper.sh file to your local, by running something like below.

curl -sSL https://raw.githubusercontent.com/rytswd/cli-demo-helper/main/demo-helper.sh \
    > demo-helper.sh

With that, you can have the following snippet in your shell script to set up functions.

# shellcheck source=./demo-helper.sh
source "$(dirname "$0")/demo-helper.sh"

🎮 Functions

Function	Description
comment "abc"	Write comment like string, with preceding character of #
comment_r "abc"	Write comment the same way, with red text
comment_g "abc"	Write comment the same way, with green text
comment_b "abc"	Write comment the same way, with blue text
comment_w "abc"	Write comment the same way, with white text
execute "some_command"	Write string as command, and execute by eval

🧩 Supported Variables

Function	Description	Default
demo_helper_type_speed	Imitated type speed in character-per-min notation	1200
demo_helper_prompt	Prompt for each line like PS1	$ in yellow