Question

我不确定为什么我没有从此脚本中收到任何错误或任何回显信息。这是我们应该纠正剧本中错误的练习之一。我只需轻推一下就能指出正确的方向。

#!/bin/bash
clear
echo 

while [ "$CHOICE" = "y" ]
do

    # Rocket ship count down code
    for num in {1..5}
    do
        echo "$num ..."
        sleep 1
    done

    echo
    echo -n 'We have main engine start.'

    # Rocket ship powering up
    for num in {1..3}
    do
        echo -n ". "
        sleep 1
    done
    # End rocket ship powering up loop

    echo -e '\e[1;31mlift off!\e[0m'
    echo

    # Loop to build rocket ship
    ################################################## Do not alter the code between these hash marks ###################################################
    for rocket_ship_part in  '\e[1;30m    A   \e[0m' '\e[1;30m   / \  \e[0m' '\e[1;30m   |=|  \e[1;30m' '\e[1;30m   |\e[1;31mU\e[0m\e[1;30m|' \
    '\e[1;30m   |\e[1;34mS\e[0m\e[1;30m|' '\e[1;30m   |\e[1;32mA\e[0m\e[1;30m|' '\e[1;30m  _|=|_  ' '\e[1;30m / | | \ ' '\e[1;30m | \|/ | ' \
    '\e[1;30m |/"\e[1;31m"\e[0m"\| ' '\e[1;31m   """ \e[0m' '\e[1;31m   """ \e[0m' '\e[1;31m    " \e[0m' '\e[1;31m    " \e[0m' '\e[1;31m    . \e[0m' \
    '\e[1;31m    . \e[0m' '\e[1;31m    . \e[0m' '\e[0;31m    . \e[0m' '\e[0;31m    . \e[0m' '\e[0;30m    . \e[0m' '\e[0;30m    . \e[0m'
    ################################################## Do not alter the code between these hash marks ###################################################
    do
        echo -e "$rocket_ship_part"
        sleep 1
    done

    # Up, up and away!
    for altitude in {1..30}
    do
        echo
        sleep 0.5
    done
    clear
    echo 'To the stars and beyond!'
    echo
    echo -n "Do ypu want to launch the rocket again? (y/n) "
    read CHOICE
    clear
done

Answer 1

params[:namespace][:q]永远不会$CHOICE，因此它永远不会进入y - 循环。

Shell脚本 - 没有回声，没有错误

1 个答案: