On 2/12/18 1:41 AM, Nikolai Kondrashov wrote:
Hi Chet,
On 02/12/2018 01:31 AM, Chet Ramey wrote:
On 2/11/18 1:06 PM, Nikolai Kondrashov wrote:
Hi everyone,
I think I'm hitting a bug in Bash 4.4.12 (on Debian Stable): at some point
an "unset" of a global array variable doesn't work inside a function, in
"dkms" script from DKMS package. Adding another "unset" of the same
variable
next to it fixes the issue.
Do you have a local variable with the same name "shadowing" the global?
Thank you for the quick response!
Looking more into this, the variable in question is defined as a local in the
calling function and is being "unset" in a function called from that one.
This is bash's dynamic scoping. The visibility of a local variable is
restricted to a function and its children, and `unset' removes the
currently-visible instance. Removing such an instance can `unconver' an
instance in a previous scope.