Re: bug: illegal function name?

[Eduardo A . Bustamante López]

On Sun, Jan 20, 2019 at 06:26:43PM +0300, Andrey Butirsky wrote:
> Andreas, I know it will work with the '-f' flag.
> But for others function names, the '-f' unset flag is not required.
> Moreover, it seem confronts with Open Group Base Specification.
> So I consider it as a bug still.
> 

It is intentional. If you want bash to run in POSIX mode, you should use the 
`POSIXLY_CORRECT' variable or the `--posix'
flag.

| dualbus@system76-pc:~$ POSIXLY_CORRECT=y bash -c 'function 1a() { :; }'
| bash: `1a': not a valid identifier

And as Andreas mentioned, in general you should use `unset -f' if you want to 
operate on functions. Otherwise you risk
conflict with a variable name.