faq:sdk [NetModule Router Wiki]

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Q: I cannot find /tmp/myfile which is generated with SDK. Where is it?
- A: See /mnt/sdk/tmp/myfile.

How can I get the file size?

int filesize(string file) {
  fd=fopen(file,"r");
  if (fd) {
    fseek(fd,-1);
    size=ftell(fd);
    fclose(fd);
    return size;
  } else {
    return -1;
  }  
}