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Groups > gnu.bash.bug > #14806
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| From | Grisha Levit <grishalevit@gmail.com> |
| Newsgroups | gnu.bash.bug |
| Subject | nounset and $! behavior |
| Date | Mon, 12 Nov 2018 18:55:37 -0500 |
| Lines | 13 |
| Approved | bug-bash@gnu.org |
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The following crashes bash:
bash-5.0$ set -u
bash-5.0$ echo ${!,}
bash: $!: unbound variable
bash: !: unbound variable
bash-5.0$ echo ${!,}
bash: $!: unbound variable
Testing if $! is set also doesn't seem to be possible:
bash-5.0$ echo ${!-}
bash: $!: unbound variable
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nounset and $! behavior Grisha Levit <grishalevit@gmail.com> - 2018-11-12 18:55 -0500
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