Set a local (function) variable.
Syntax local [option] [name[=value] ...]
For each argument, a local variable named name is created, and assigned value.
The option can be any of the options accepted by declare.
When local is used within a function, it causes the variable name to have a visible scope restricted to that function and its children.
With no operands, local writes a list of local variables to the standard output.
It is an error to use local when not within a function.
The return status is 0 unless local is used outside a function, an invalid name is supplied, or name is a readonly variable.
local is a bash builtin command.
“A local shop for local people” ~ The League Of Gentlemen
set - Set a shell variable = value