What a 'name' is, is further defined under "Definitions": "name: A word consisting solely of letters, numbers, and underscores, ..."
But it seems you're right that it doesn't say the locale's idea of letters isn't taken into account. Some other shells do accept those. On Mon, Apr 19, 2021 at 4:28 PM 積丹尼 Dan Jacobson <jida...@jidanni.org> wrote: > $ e哈=1 > bash: e哈=1: command not found > OK, but on man bash is it ever mentioned that a variable name must be all > ASCII? > > ENVIRONMENT > When a program is invoked it is given an array of strings called > the > environment. This is a list of name-value pairs, of the > form > name=value.... > > PARAMETERS > A parameter is an entity that stores values. It can be a name, a > num‐ > ber, or one of the special characters listed below under Special > Param‐ > eters. A variable is a parameter denoted by a name. A variable > has ... > >