From this commandlinefu post:
$ diff <(wget -q -O - URL1) <(wget -q -O - URL2)
Seems like multiple standard inputs but---if I remember my Linux Porgramming course correctly---this can't be it. I thought that, by definition, standard input was one stream.
Perhaps this has zilch to do with stdin? Can someone explain this to me; maybe provide links to documentation.
Bonus: How would a script handle these multiple streams? If someone could provide a Python or Perl example, that would be very helpful.
<(…); in Zsh process substitution syntax is