以下是我在项目中制作等待动画的方法：sshto和kube-dialog
来自here的颜色变量

XY(){ printf "\e[$2;${1}H$3"; }

cursor () {
    case $1 in
         on) stty  echo; printf "$CON";;
        off) stty -echo; printf "$COF";;
    esac
}

   x=$[COLUMNS/2-3]
   y=$[  LINES/2-3]
sand=( ⠁  ⠂  ⠄  ' ' )
#  {   small digits    }
sd=(₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉)
bs='⠴⠷⠦' # bottom sand pile
ts='⠖'    #  top  sand pile
WAIT(){
    clear; cursor off; i=0; start=$SECONDS
    XY $[x-1]  $y    $UND$BLD$RED'       '$DEF                     # _______
    XY $[x-1] $[y+1]         $RED'╲'$DIM$UND'     '$DEF$red'╱'$DEF # ╲_____╱
    XY  $x    $[y+2]         $BLU'(  '$BLD$WHT'•'$BLD$BLU')'$DEF   #  (  •)
    XY  $x    $[y+3]         $BLU' ╲'$YLW"$ts"$BLD$BLU'╱'$DEF      #   ╲⠖╱
    XY  $x    $[y+4]         $BLU" ╱$YLW${sand[$i]}$BLD$BLU╲"$DEF  #   ╱⠂╲
    XY  $x    $[y+5]         $BLU'('$YLW"$bs"$BLD$BLU')'$DEF       #  (⠴⠷⠦)
    XY $[x-1] $[y+6]         $RED'╱'$RED'‾‾‾‾‾'$BLD$RED'╲'$DEF     # ╱‾‾‾‾‾╲
    XY $[x-1] $[y+7]     $DIM$RED'‾‾‾‾‾‾‾'$DEF                     # ‾‾‾‾‾‾‾
    ( while true; do sleep 0.07
        printf -v counter "%03d" $[SECONDS-start]
        small="${sd[${counter:0:1}]}${sd[${counter:1:1}]}${sd[${counter:2:1}]}"
        XY $[x-1] $[y+1] $RED'╲'$DIM$UND" $small "$DEF$red'╱'$DEF
        XY  $x    $[y+4] $BLU" ╱$YLW${sand[$i]}$BLD$BLU╲"$DEF
        ((i++)); (($i==${#sand[@]})) && i=0;
    done ) & waiter=$!
}

这样使用它：

WAIT; sleep 10; GO

动画看起来像这样：

另一个等待动画的好例子可以在这里找到