zsh expansions/substitutions (cont.)

lots of people know about backticks
some know about $(...) (which is the same as backticks)

much less used, but so useful when you need them:
<(...): takes output of process and substitutes it as a pipe (FIFO) into cmdline
cdrecord -audio <(cdparanoia -W 1)
=(...): as above, but forces zsh to use a temporary file rather than a pipe
>(...): not as useful (imho); command in parenthesis gets input from stuff outside the parentheses
dvips -o >(lpr) frogger.dvi

useful redirection extensions:
we all know about echo hello world > file1
zsh supports echo hello world > file1 > file2 > file3
want to pipe stderr somewhere?  gcc -Wall badsyntax.c |& less