bash

Question

下面的link：
https://serverfault.com/questions/144939
它正确显示了如何使用“对话框”命令创建菜单，但未显示如何创建“select all”快捷按钮。
如何创建“Select 全部”按钮？

Answer 1

像这样：

#!/bin/bash

onoff=off # all unset by defaul
dialog1(){ dialog --output-fd 1 --extra-button --extra-label "Select All" --checklist "Select options:" 0 0 0 "$@"; }
dialog2(){ choices=$(dialog1 "${options[@]}"); }

set_options(){ # make options array dynamic
    options=(
        1 "Option 1" $onoff
        2 "Option 2" $onoff
        3 "Option 3" $onoff
        4 "Option 4" $onoff
    )
}

set_option
dialog2

case $? in          # if 'Select All' presssed
     3) onoff=on    # set all to on
        set_options # reassemble options
        dialog2;;   # and run dialog again
esac

clear
echo $choices

Answer 2

伊万，谢谢你。
从您的解决方案中汲取灵感，将其与 link:
的解决方案合并 https://serverfault.com/questions/144939
并以我自己的方式改进代码，我得到了这个解决方案：

#!/bin/bash
onoff=off
cmd=(dialog --output-fd 1 --separate-output --extra-button --extra-label "Select All" --cancel-label "Select None" --checklist "Select options:" 0 0 0)
load-dialog () {
    options=(
                1 "Option 1" $onoff
                2 "Option 2" $onoff
                3 "Option 3" $onoff
                4 "Option 4" $onoff
    )
    choices=$("${cmd[@]}" "${options[@]}")
}
load-dialog
exit_code="$?"
while [[ $exit_code -ne 0 ]]; do
case $exit_code in
    1) clear; onoff=off; load-dialog;;
    3) clear; onoff=on; load-dialog;;
esac
exit_code="$?"
done
clear
for choice in $choices
do
    case $choice in
        1) echo "First Option";;
        2) echo "Second Option";;
        3) echo "Third Option";;
        4) echo "Fourth Option";;
    esac
done
sleep infinity

bash - 对话框命令 - "select all" 按钮

bash - dialog command - "select all" button

dialog

ubuntu-20.04