Question

我得到了一个简单的脚本：

#!/usr/bin/env bash
eval "${@:2}"

while [ true ]
do
    FocusApp=`xdotool getwindowfocus getwindowname`

    if [[ "$FocusApp" == *"$1"* ]];
    then
        wmctrl -ir $(xdotool getactivewindow) -b add,maximized_vert,maximized_horz
        break
    fi
done

我这样运行：

$ ./maximize.sh "Sublime Text" /usr/bin/subl -n "./My File With Spaces in the Name"

但是当我运行它时，Sublime Text尝试打开一个名为My的文件，另一个名为File的文件，依此类推。如果我将eval "${@:2}"替换为：

eval "\"$2\" \"$3\" \"$4\" \"$5\" \"$6\" \"$7\" \"$8\""

然后，Sublime Text将正确打开文件"./My File With Spaces in the Name"。如何使eval正确地理解带有可变数量的命令行参数的所有参数引号，即无需硬编码"\"$2\" \"$3\" \"$4\" ..."？

Answer 1

将eval放在其中更容易：

#!/usr/bin/env bash
"${@:2}"

示例：

$ ./myscript "Demo" 'printf' 'This is one argument: %s\n' 'One long arg' 'Another, with * and such'
This is one argument: One long arg
This is one argument: Another, with * and such

如何将可变数量的带有引号的命令行参数解析为eval？

1 个答案: