52 lines
996 B
Plaintext
52 lines
996 B
Plaintext
# can we unset the nameref attribute on variables with values that reference
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# unset variables?
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unset bar
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declare -n foo="bar"
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declare -p foo
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declare +n foo
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declare -p foo bar
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declare -n foo
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declare -p foo
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# let's try removing the nameref attribute -- other attributes and assignments
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# apply to the nameref target
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declare +n -i foo=7+4
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declare -p foo bar
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unset foo bar
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# but if the nameref variable doesn't have a value, the attributes apply to
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# the nameref variable itself. thanks ksh93
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declare -n foo6
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declare -xi foo6
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declare -p foo6
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# and when we remove the nameref attribute, the other attributes remain
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declare +n foo6
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declare -p foo6
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unset foo6
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# make sure these cases continue to work
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# nameref referencing an existing, set variable
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declare -n foo=bar
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bar='Hello World!'
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declare -p foo bar
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declare +n foo
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declare -p foo bar
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unset foo bar
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# nameref referencing an existing, unset variable
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declare -n foo=bar
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declare bar
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declare -p foo bar
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declare +n foo
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declare -p foo bar
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