24 lines
591 B
Plaintext
24 lines
591 B
Plaintext
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# first try some invalid patterns (do in subshell due to parsing error)
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# (set argv0 to "SHELL" to avoid "/path/to/shell: blah" in error messages)
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# valid in bash and ash (same as $-): "$THIS_SH" -c 'echo ${-}' SHELL
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"$THIS_SH" -c 'echo ${:-}' SHELL
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# now some funky ones
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echo _${#-} _${#:-}
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# now some valid ones
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set --
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echo _$1 _${1-} _${1:-} _${1-word} _${1:-word}
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set -- aaaa
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echo _$1 _${1-} _${1:-} _${1-word} _${1:-word}
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unset f
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echo _$f _${f-} _${f:-} _${f-word} _${f:-word}
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f=
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echo _$f _${f-} _${f:-} _${f-word} _${f:-word}
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f=fff
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echo _$f _${f-} _${f:-} _${f-word} _${f:-word}
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