Appendix . How to use this index
Entries for language resources refer to Perl ones, unless otherwise indicated—e.g., “NR (AWK)” refers to an AWK resource. As an exception, entries for resources having the same name in the Shell and Perl (e.g., “exit”) apply to both languages unless otherwise indicated.
Entries for metacharacters are found in the Symbols section and refer to resources of the regular expression notation, unless marked as FNG (for filename generation notation).
Perl’s invocation options(such as “n” and “F”) are shown with leading dashes (”—n”, “-F”), but they’re listed in alphabetical order as if the dashes weren’t present—except options having a digit immediately after the dash, which are listed under “Numeric Options.”
Variables, ...
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