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Maybe we should rephrase the ticket, it's just a placeholder for the issue being discussed: http://lists.gnu.org/archive/html/bug-bash/2019-01/msg00203.html
If you want to unset a function with a name that's not a valid identifier, use `unset -f'.
Hello, seems like bash allows illegal function names, but refuses to unset them then:
$ function 1a () { :; } $ declare -f 1a 1a () { : } $ unset 1a bash: unset: `1a': not a valid identifier $ GNU bash, version 4.3.48(1)-release (x86_64-slackware-linux-gnu)
The first character of a name should not be a digit: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_235
http://lists.gnu.org/archive/html/bug-bash/2019-01/msg00158.html
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