file - Redirect output to 'file' command

Question

Is there any way to have the file command get it's input from stdin? Specifically, I am trying to get the file type of a file in an archive, and am trying to do it in a single command. I tried this:

ar -p foo.a baz.o | file

but that does not work.

Answer 1

を使用しfile -ます。ハイフンは「標準入力から入力を受け取る」という意味です。

Answer 2

これを試してください：

ar -p foo.a baz.o | xargs ファイル