89 lines
1 KiB
Text
89 lines
1 KiB
Text
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f() { local -n a=$1; a=X; }
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a=(0); f 'a[0]'
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while [[ -v a ]]; do declare -p a; unset a; done
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a=(0); f 'a'
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while [[ -v a ]]; do declare -p a; unset a; done
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b=(0); f 'b[0]'
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while [[ -v a ]]; do typeset -p a; unset a; done
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typeset -p b
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b=(0); f 'a[0]'
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while [[ -v a ]]; do typeset -p a; unset a; done
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typeset -p b
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add_X_echo()
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{
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typeset -n ref=$1
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ref+=X
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echo inside $ref
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}
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ref=
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add_X_echo ref
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echo outside "$ref"
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unset ref
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typeset -n ref=ref
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typeset -n ref=re ref+=f
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typeset -p ref
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ref=4
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typeset -p ref re
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export ref
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printenv ref
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printenv re
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unset ref ; unset -n ref
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unset foo; unset -n foo
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typeset -n foo=var[@]
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typeset -p foo
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typeset -n ref=var ref+=[@]
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typeset -p ref
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ref=42
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typeset -n bar
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bar=var[@]
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typeset -p bar
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bar=7
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unset a b
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unset -n a b
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typeset -n a=b b
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b=a[1]
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typeset -p a b
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a=foo
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typeset -p a b
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unset a
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typeset -n a=b
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declare a=foo
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typeset -p a b
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unset n v
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unset -n n v
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v=(0 1)
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typeset -n n=v
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unset n[0]
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typeset -p n v
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unset -n n
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v=(0 1)
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typeset -n n=v
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unset -n n
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typeset -p n v
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v=(0 1)
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declare -n n=v[1]
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unset n
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declare -p n v
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