On Tue, 27 Jul 2004, James Wilkinson wrote:
Alexander Dalloz wrote:$(foo) is the current notation and some day ` ` (backticks) will go away from bash (by it's developers).
OUCH!
I hope not. That will break more UNIX setups than any other changeover I've ever heard of.
Yes, $() is more elegant, but the sheer weight of legacy `` means that I'd back the backticks over the bash maintainers in any battle for their continued survival...
both $( ) and `` are, as i read it, part of the official Single UNIX Specification (therefore, they're part of POSIX), which means that bash pretty much has to keep the older construct, at the very least in POSIX-compliant mode.
nothing says that bash has to be POSIX-compliant in normal mode, though. technically, i suppose the bash developers could make any changes they want, and if it broke one of your scripts, well, tough, you don't have a bash-compliant script and you shouldn't be trying to run it with bash.
i'm just speculating, though.
rday
