用代码复制Android虚拟机里的文件遇到system/bin/sh: adb: not found&system/bin/sh: pull: not found_/system/bin/sh: pull: inaccessible or not found

用代码复制Android虚拟机里的文件遇到system/bin/sh: adb: not found&system/bin/sh: pull: not found

不想看我啰嗦请直接滑到横线那里，以上是我错误的尝试。
昨天利用Android虚拟机的GestureBuilder创建了一个手势文件gestures。然后打开DDMS后发现File Explorer中竟然没有任何东西！

尝试了多个方法未果，决定使用adb指令来复制；代码如下：

M:\Android\TheFirstLineCode\GestureDetectorTest>adb shell
adb server is out of date.  killing...
* daemon started successfully *
generic_x86_64:/ $ adb pull mnt/sdcard/gestures B:\
adb pull mnt/sdcard/gestures B:\
>
/system/bin/sh: adb: not found
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报出这个/system/bin/sh: adb: not found
我了个c,这是什么鬼，于是开始百度说什么要权限设么的然后尝试：

generic_x86_64:/ $ chmod 777/data
chmod 777/data
usage: chmod [-R] MODE FILE...

Change mode of listed file[s] (recursively with -R).

MODE can be (comma-separated) stanzas: [ugoa][+-=][rwxstXugo]

Stanzas are applied in order: For each category (u = user,
g = group, o = other, a = all three, if none specified default is a),
set (+), clear (-), or copy (=), r = read, w = write, x = execute.
s = u+s = suid, g+s = sgid, o+s = sticky. (+t is an alias for o+s).
suid/sgid: execute as the user/group who owns the file.
sticky: can't delete files you don't own out of this directory
X = x for directories or if any category already has x set.

Or MODE can be an octal value up to 7777        ug uuugggooo    top +
bit 1 = o+x, bit 1<<8 = u+w, 1<<11 = g+1        sstrwxrwxrwx    bottom

Examples:
chmod u+w file - allow owner of "file" to write to it.
chmod 744 file - user can read/write/execute, everyone else read only

chmod: Need 2 arguments
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结果又出来一大堆提示（好像更新了，使用chomd u+w file 才是获取读和写的）；
然后继续百度：
有人说用adb shell进入Linux模式后就不需要在加adb了，那就再试一下：

127|generic_x86_64:/ $ pull /mnt/sdcard/gestures D://
pull /mnt/sdcard/gestures D://
/system/bin/sh: pull: not found
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结果又出来/system/bin/sh: pull: not found
无语了，放弃百度尝试谷歌

---

点开第一条就发现了这个哥们遇到了和我一样的情况：

继续往下翻发现有人说是不能在adb shell下使用adb pull：

继续尝试（需要注意，在使用adb pull 的时候记得退出adb shell下）：

M:\Android\TheFirstLineCode\GestureDetectorTest>adb pull /mnt/sdcard/gestures M://
adb server is out of date.  killing...
* daemon started successfully *
8 KB/s (488 bytes in 0.056s)
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终于见到了梦寐以求的successfully了。
（先让我笑一会儿）哈哈哈哈。
本人功力尚浅，废话太多，找不到重点，还请包含。可能还有错误，请大家指出，谢谢，希望对同样遇到此问题的小伙伴有所帮助！
我是：今天周一呢。