In article <4a8bba80$1@news.povray.org>,
Invisible wrote:

> Warp wrote:
>
>>   'cat' is a program for concatenating files. It's used like:
>> 
>> cat file1 file2 file3 > concatenated_files
>> 
>>   Your program does not fulfill this role.
>> 
>>   (Some people abuse 'cat' to concatenate one single file with nothing,
>> but that doesn't mean that the role of 'cat' is anything else than
>> concatenating files.)
>
> Interesting. I thought it was for concatenating a file to stdout...

It is. :-) In the same order in which they are read.

> Alrighty then:
>
>    import System.Environment
>
>    main = do
>      args <- getArgs
>      mapM_ (\arg -> readFile arg >>= putStr) args
>
> That seems to work.
>
> I'm guessing the real cat program also has assorted command-line 
> switches as well though?

Your cat has a disease, common in recently seen cats, the makes it
ignore the stdin.

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