Re: [Help-bash] The best way to get the last element of $@

[Greg Wooledge]

On Thu, Mar 19, 2015 at 11:49:48AM -0500, Peng Yu wrote:
> Hi,
> 
> There are many ways of getting the last element of address@hidden Does anybody
> know what might be the best way to get the last element of address@hidden 
> Thanks.

The BEST way is to reorder your arguments so the special one is first
instead of last, then shift it off.  Like this:

foo() {
    local x="$1"
    shift
    blah blah "$x" blah blah "$@"
}

If you can't do that (e.g. because you are writing a wrapper around cp),
then you can use various techniques.  Here is one:

bar() {
    local x="${@:(-1)}"
    local argv=("${@:1:$#-1}")
    blah blah "$x" blah blah "address@hidden"
}