41 lines
609 B
Plaintext
41 lines
609 B
Plaintext
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# check invalid options are rejected
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# bash: in posix mode, aborts if non-interactive; using subshell to avoid that
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(unset -)
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echo $?
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(unset -m a b c)
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echo $?
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# check funky usage
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unset
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echo $?
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# check normal usage
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echo ___
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f=f g=g
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echo $? $f $g
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unset f
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echo $? $f $g
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unset g
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echo $? $f $g
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echo ___
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f=f g=g
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echo $? $f $g
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unset f g
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echo $? $f $g
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f=f g=g
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echo $? $f $g
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unset -v f g
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echo $? $f $g
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# check read only vars
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echo ___
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f=f g=g
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VAR_RO=1
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readonly VAR_RO
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(unset VAR_RO)
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echo $? $f $g
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# not testing "do variables survive error halfway through unset" since unset aborts
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# unset f VAR_RO g
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#echo $? $f $g
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