[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