make the program write the contents of the read file to another file instead of to stdout.

Sure, you can redirect the output to a file using the ">" operator followed by the destination file name. For example:

$ ./program input.txt > output.txt

This command will run the program with "input.txt" as input file and write the output to "output.txt".

相关问题

Modify C program to write the contents of the read file to another file instead of to stdout.

可以的，您可以将读取文件的内容写入另一个文件而不是标准输出。这可以通过使用fopen()打开新文件，然后使用fputc()将文件指针中的每个字符都写入该文件来完成。具体实现可以参考以下代码片段：

#include <stdio.h>

int main() {
   FILE *inputFile, *outputFile;
   int c;

   inputFile = fopen("input.txt", "r");
   outputFile = fopen("output.txt", "w");

   while ((c = fgetc(inputFile)) != EOF) {
      fputc(c, outputFile);
   }

   fclose(inputFile);
   fclose(outputFile);

   return 0;
}

这段代码将读取input.txt文件的内容并将其写入output.txt文件中。

The numbers zero through nine (that is, 0-9) represent the first 10 handles. You can use Cmd.exe to run a program and redirect any of the first 10 handles for the program. To specify which handle you want to use, type the number of the handle before the redirection operator. If you do not define a handle, the default < redirection input operator is zero (0) and the default > redirection output operator is one (1). After you type the < or > operator, you must specify where you want to read or write the data. You can specify a file name or another existing handle.

That's correct! When running a program in Cmd.exe, you can redirect any of the first 10 handles by specifying their number before the redirection operator. Handle 0 represents standard input (stdin), handle 1 represents standard output (stdout), and handle 2 represents standard error (stderr).

For example, to redirect the output of a program to a file called "output.txt", you would use the command:

program.exe > output.txt

This redirects standard output (handle 1) to the file "output.txt". If you wanted to redirect standard error instead, you would use the number 2 before the redirection operator:

program.exe 2> error.txt

This redirects standard error (handle 2) to the file "error.txt".