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Re: [BUG] 'unset' fails silently under specific conditions

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Op 01-05-18 om 18:45 schreef Martijn Dekker:
> It appears that it must have one function calling another, and that 
> other function having an assignment preceding a special builtin, for 
> 'unset' to fail silently for the variable so assigned.

Actually it can be simplified further: the following also outputs "BUG: 
still set". I fact, with this version, the bug manifests all the way 
down to bash 2.05b!

POSIXLY_CORRECT=y
func() {
   var=1
   var=2 :       # or 'var=2 set foo', or another special builtin
   unset -v var  # bug: fails silently
}
func
echo ${var+"BUG: still set"}

Thanks,

- M.

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Re: [BUG] 'unset' fails silently under specific conditions Martijn Dekker <martijn@inlv.org> - 2018-05-01 20:29 +0200

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