NAND write: '$filesize' is not a number
来源：互联网 发布：蛮牛unity3d 编辑：程序博客网 时间：2024/06/05 14:18
在做dnw menu的时候遇到的，当时的命令是这样的：strcpy(cmd_buf,"dnw 0xc0008000; nand erase 0x600000 0xFE000; nand write.yaffs 0xc0008000 0x600000 $filesize");这条命令在手动在终端输入是没有问题的，但是用run_command来调用的时候问题说：NAND write: '$filesize' is not a number，就是这个环境变量有问题！我的天，我echo打印的时候也是可以的：
SMDKV210 # echo $filesize
8c40000
SMDKV210 #
真是邪门！最后在字符串中改为$(filesize)就可以了，但是这个手动在终端输入是不可以的！
SMDKV210 # echo $(filesize)
$(filesize)
SMDKV210 #
这个环境变量不知道是怎么解读的！问题是解决了，原因未知。
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