console_codes(4) — Linux manual page

B   CUD       Move cursor down the indicated # of rows.

E   CNL       Move cursor down the indicated # of rows, to column
                     1.

K   EL        Erase line (default: from cursor to end of line).
                     ESC [ 1 K: erase from start of line to cursor.
                     ESC [ 2 K: erase whole line.

#!/usr/bin/env bash

# \e = \033 = \x1B

printf "Default\e[1B"
sleep 1
printf "\e[1mBold\e[0m\e[1B"
sleep 1
printf "\e[3mItalic\e[0m\e[1B"
sleep 1
printf "\e[1m\e[5mBold blinking"
sleep 3
printf "\e[0m\e[1B"
sleep 1
printf "\e[7mInverted\e[0m\e[1B"
sleep 1
printf "\e[21mUnderlined\e[0m\e[1B"
sleep 1
printf "\e[31mRed foreground\e[0m\e[1B"
sleep 1
printf "\e[42mGreen background\e[0m\e[1B"
sleep 1
printf "\e[9mStrikethrough\e[0m\e[1E"
sleep 1
printf "First newline\n"
sleep 1
printf "Hello"
sleep 3
printf "\e[1KBye\n"

asciinema rec -c "./CUD_CNL_EL.sh" -t "CUD, CNL, and EL console codes" CUD_CNL_EL.cast