获取 adb shell 命令的结果代码 [英] Get result code of adb shell command

问题描述

我应该如何获得adb shell $? 的?

我想检查adb shell mkdir/xxx的结果.

我通过 adb shell 执行了 mkdir 命令并失败了，但是 $? 的结果是 0.

I executed mkdir command by adb shell and failed but the result of $? is 0.

$ adb shell mkdir /xxx
mkdir failed for /xxx, Read-only file system
$ adb shell echo $?
0

$ adb shell "mkdir /xxx; echo $?"
mkdir failed for /xxx, Read-only file system
0

我想获得adb shell 但不是在交互模式的结果代码，如下所示:

I would like to get the result code of adb shell <command> but not in the interactive mode like below:

$ adb shell
shell@android:/ $ mkdir /xxx
mkdir failed for /xxx, Read-only file system
255|shell@android:/ $ echo $?
255

推荐答案

你应该这样做:

$ adb shell 'mkdir /xxx; echo $?'
mkdir failed for /xxx, Read-only file system
255

注意单引号，否则 $? 在到达 adb 之前被评估.

Notice the single quotes, otherwise $? is evaluated before reaching adb.

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