Perl Cookbook, Second Edition
| [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] [Y] [Z] -e command-line option, writing filters \E string metacharacter /e substitution modifier 2nd each( ) hashes merging ordering elements of traversing eager pattern matching echo and password input editing files [See file contents] input elements of arrays [See arrays] of hashes [See hashes] attachments extracting sending matching valid addresses random signatures reading with POP3 sending HTML forms via sorting tracking time path of Email::Valid module empty base class test strings ("") Encode module encoding attribute, XML =end pod directive __END__ token environment variables MHCONTEXTFD PERL_UNICODE Epoch [See date and time values] equals sign (=) => operator =~ operator =begin pod directive =end pod directive error log, web server errors [See also exceptions][See also exceptions] CGI scripts fixing 500 server in redirecting messages from controlling for other programs database reading STDERR from programs reporting filenames in reporting like built-ins subroutines exceptions in returning failure from trapping in require and use statements trapping undefined function calls turning signals into web server error log escaping characters eval( ) with require and use statements in substitution 2nd events, Tk resize Excel, saving SQL query results to exceptions handling in subroutines trapping undefined function calls exclusive locks exec( ) replacing programs shell escapes exists( ) multiple hash key values expanding tabs variables in user input Expect module controlling programs with EXPN command expn program @EXPORT array (use pragma) @EXPORT_OK array (use pragma) @EXPORT_TAGS array (use pragma) Exporter module 2nd exporting to modules expressions, interpolating within strings Extensible Markup Language [See XML] extension modules, C, building external redirection extract_bracketed( ), matching nested patterns extracting array subsets extracting from arrays [See arrays] |