length EXPR length Returns the length in characters of the value of EXPR. If EXPR is omitted, returns

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${^RE_DEBUG_FLAGS} The current value of the regex debugging flags. Set to 0 for no debug output even when the re

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Gory details of parsing quoted constructs When presented with something that might have several different interpretations, Perl uses the DWIM

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if These flow-control keywords are documented in Compound

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glob EXPR glob In list context, returns a (possibly empty) list of filename expansions on the value of EXPR