Re: [Help-bash] Quoting in variables to be used as command args

[Dan Douglas]

On Tuesday, June 05, 2012 08:36:22 PM suvayu ali wrote:
> A few questions, I don't understand the use of two '<' characters. Why
> is one input redirection not enough?

The first < is the redirect. <(cmds) is a substitution expanding to a filename. 
The space prevents ambiguity with herestring or heredoc redirects.

http://wiki.bash-hackers.org/syntax/expansion/proc_subst

> Why are the escaped parentheses
> around findopts required? Just using "address@hidden" seems to work in
> my script.

Parentheses are metacharacters and need escaping or quoting to pass as 
arguments to find. There they act as grouping operators which I suppose might 
be necessary depending on the contents of findopts. 
-- 
Dan Douglas