On Wed, Nov 19, 2014 at 10:51 PM, Eduardo A. Bustamante López <dual...@gmail.com> wrote: > On Wed, Nov 19, 2014 at 10:32:52PM +0100, Piotr Grzybowski wrote: >> I do understand your point. Dont you understand the need to check in >> a simple (I know, nothing works, nothing is simple ;-)) way that given >> variable has value? no matter what it is? > > there: > > is_defined3() { > { declare -p -- "$1" && ! declare -fp -- "$1"; } 2>/dev/null >&2 > }
I dont know, but looks like a reusable code to me. cheers, pg