21 lines
272 B
Plaintext
21 lines
272 B
Plaintext
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:D expanded when var set
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true
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TRUE
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:U expanded when var undef
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true
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TRUE
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:D skipped if var undef
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:U skipped when var set
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is set
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:? only lhs when value true
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true
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TRUE
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:? only rhs when value false
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false
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FALSE
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do not evaluate or expand :? if discarding
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is set
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exit status 0
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