エスケープシーケンスで画面制御する関数

esc.sh

#!/usr/bin/env bash
ClearScreen() { printf "\033[2J" ; }
ClearRight()  { printf "\033[0K" ; }
ClearLeft()   { printf "\033[1K" ; }
ClearLine()   { printf "\033[2K" ; }
MoveCursor()      { printf "\033[%d;%dH" "$1" "$2" ; }
MoveCursorUp()    { printf "\033[%dA"    "$1"      ; }
MoveCursorDown()  { printf "\033[%dB"    "$1"      ; }
MoveCursorRight() { printf "\033[%dC"    "$1"      ; }
MoveCursorLeft()  { printf "\033[%dD"    "$1"      ; }

ResetStyle(){
    printf "\033[0m"
}
ClearUpperLines(){
    # shellcheck disable=SC2034
    for i in $(seq 1 "$1"); do
        MoveCursorUp 1
        ClearLine
    done
}