[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] !~ (exclamation point-tilde), Perl pattern-binding operator $ (dollar sign) Perl hashes Perl regex metacharacter Perl scalars Perl variable notation $# (dollar sign-number sign) Perl syntax $_ (dollar sign- underscore ) implicit use in regexes pronoun in Perl hashes $dbh variable (Perl DBI) % (percent sign) Perl in Mason template Perl variable notation %ENV hash (Perl) <% . . . %> (angle brackets-percent signs), Perl in Embperl template <%perl> . . . </%perl> (angle brackets-percent signs) <> (angle brackets) mucr8.pl file spdrvr.pl <<END_DATE_PK>> tag (spdrvr.pl) <<START_DATE_PK>> tag (spdrvr.pl) () (parentheses), Perl regex metacharacter * (asterisk), Perl regex metacharacter 2nd *? (asterisk-question mark), Perl regex metacharacter + (plus sign), Perl regex metacharacter 2nd +? (plus sign-question mark), Perl regex metacharacter -> (arrow notation), Perl -dryrun option (mucr8.pl)[dryrun option (mucr8.pl) . (dot character), Perl regex metacharacter 2nd =~ (equal sign-tilde), Perl pattern-binding operator ? (question mark), Perl regex metacharacter 2nd ?? (question mark-question mark), Perl regex metacharacter @ (at sign), Perl variable notation @emailAddresses parameter (maxext.conf)[atemailAddresses parameter (maxext.conf) [! . . . !] (square brackets-exclamation points), Perl in Embperl template [+ . . . +] (square brackets-plus signs), Perl in Embperl template [- . . . -] (square brackets-hyphens), Perl in Embperl template [] (square brackets) Perl arrays Perl regex metacharacter [^] (square brackets-caret sign), Perl regex metacharacter \ (backslash), Perl regex metacharacter ^ (caret sign), Perl regex metacharacter {} (curly braces) Embperl idxr.pl (vertical bar), Perl regex metacharacter |