简单地说,我在 BASH 中使用 Dialog 来生成消息并有一个交互式菜单。不过,作为一步,我需要等待用户插入硬件设备,所以我运行了一个带有回显功能的“tailbox”。
现在我只是回显“请退出对话框”,但为了简化目的,我想自己关闭对话框。我已经添加了一个超时时间,但这是为了确保用户不会卡在那个屏幕上,所以它很长。
有没有办法让它在脚本结束时对话框休眠 2-3 秒然后关闭?
非常感谢任何帮助!
function initRPI { # Wait for carrier Board to be plugged in, then initialize CM Unit
echo -e "Plug in carrier board with compute module attached.\n"
pkill "rpiboot"
sleep 0.5
$FILE # Run rpiboot from where it's installed
echo -e "\nCompute Module Initialized - Exit Now."
}
function writeImage { # Find proper image and write it to device
if [[ " ${boxTypes[*]} " =~ "$boxType" ]]; then
initRPI > _temp &
dialog --backtitle "$backTitle" --fb --title "Image Writer" --timeout 60 --tailbox _temp 15 70
if pgrep -f rpiboot &> /dev/null 2>&1; then
pkill "rpiboot"
dialogMsg FAILED "Compute Module was not initialized."
else
devCM="/dev/sda"
if [ ! -d "/mnt/firmware" ]; then
mkdir /mnt/firmware
fi
mount -t nfs $nasIP/firmware /mnt/firmware
(pv -n "/mnt/firmware/${unitSerial:2:4}.img" | dd of="$devCM" bs=4M conv=notrunc,noerror) 2>&1 | dialog --gauge "Running cloning $imageName to device $1, please wait..." 10 70 0
sleep 0.5
if kill -0 "$pid" ; then
dialogMsg SUCCESS "Image $imageName written to device $1."
else
dialogMsg FAILED "Image $imageName failed to write to device $1."
fi
fi
else
dialogMsg ERROR "Can't find $boxType in the model list."
fi
}
我让它分叉 rpiboot 进程,所以 tail 只读取一个临时变量,但我必须等待用户输入在 rpiboot 完成时退出。
编辑:我意识到我把 --timeout 放在了 --tailbox 参数中,所以很快就移动了它。
我想通了。我基本上可以删除 EXIT 按钮并用 pkill "dialog" 强行关闭对话框窗口。
希望这对某人有帮助!