Symbols | 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

Index: E

\e (escape) sequence: Escaped Sequences (Perl tutorial)
/e pattern-match modifier: Expression Evaluation in Substitutions (Advanced Perl Developing)
- (Developing Perl) 5.2.3. The s/// Operator (Substitution)
- Expanding Variables in User Input (Perl tutorial)
- Introduction (Perl tutorial)
- Commenting Regular Expressions (Perl tutorial)
- Writing a Filter (Perl tutorial)
\E string metacharacter: Escaping Characters (Perl tutorial)
-E option (dprofpp): The Perl Profiler (Perl tutorial)
-e switch, perl: The String Form: Expression Evaluation (Advanced Perl Developing)
- Command-Line Options (Perl tutorial)
each(): Merging Hashes (Perl tutorial)
- Reference: each (Perl tutorial)
- Access and Printing of a Hash of Hashes (Developing Perl)
- Hash-Tying Methods (Developing Perl)
- each (Developing Perl)
eager pattern matching: Introduction (Perl tutorial)
ebcdic() (Net::FTP): Reference: ebcdic (Perl tutorial)
echo command, password input: Reading Passwords (Perl tutorial)
editing:: The CPAN modules Directory (Developing Perl)
editing input: Editing Input (Perl tutorial)
/ee substitution modifier: Expanding Variables in User Input (Perl tutorial)
- Commenting Regular Expressions (Perl tutorial)
editors, support for debugging: Editor Support for Debugging (Developing Perl)
edquota command (Unix): Editing Quotas with edquota Trickery (Perl for System Administration)
effective GID (group ID): Special Variables in Alphabetical Order (Developing Perl)
effective UID ($EFFECTIVE_USER_ID): Special Variables in Alphabetical Order (Developing Perl)
$EFFECTIVE_GROUP_ID: Special Variables in Alphabetical Order (Developing Perl)
- Special Variables in Alphabetical Order (Developing Perl)
$EFFECTIVE_GROUP_ID ($)) variable: Global Special Variables (Perl tutorial)
$EFFECTIVE_USER_ID: Special Variables in Alphabetical Order (Developing Perl)
$EFFECTIVE_USER_ID ($>) variable: Global Special Variables (Perl tutorial)
efficiency (see performance)
- profiling: The Perl Profiler (Developing Perl)
$EGID ($() variable: Global Special Variables (Perl tutorial)
eggdrop bot: Using the Proc::ProcessTable Module (Perl for System Administration)
ElDump program: Stream Read-Count (Perl for System Administration)
electronic mail (see also email)
- as support medium: Support Mail Augmentation (Perl for System Administration)
- dissecting mailboxes/messages: Receiving Mail (Perl for System Administration)
- log file parsing: Black Boxes (Perl for System Administration)
- relaying: Tracking Down Spam (Perl for System Administration)
- sending from Perl
- - limiting frequncy and amount of: Controlling the frequency of mail (Perl for System Administration)
  - Mac OS: Using the OS-Specific IPC Framework. (Perl for System Administration)
  - mistakes in: Common Mistakes in Sending Email (Perl for System Administration)
  - Windows/2000: Using the OS-Specific IPC Framework. (Perl for System Administration)
- spam (see spam)
- subject line of, writing useful: Subject Line Waste (Perl for System Administration)
- support mail, augmenting: Support Mail Augmentation (Perl for System Administration)
- tool for system administration: Electronic Mail (Perl for System Administration)
/etc/hosts: Host Files (Perl for System Administration)
- NIS, NIS+, and WINS (Perl for System Administration)
element references: Array/Hash References Versus Element References (Advanced Perl Developing)
-elementborderwidth option (Scrollbar): The Scrollbar Widget (Perl tutorial)
elements in arrays:: Arrays. (Developing Perl)
eleseif statements: The if and unless statements (Developing Perl)
ellipses (...): Metasymbol Tables (Developing Perl)
else statements: The if and unless statements (Developing Perl)
E<> interior sequence (pod): Interior sequences (Perl tutorial)
emacs
- -*- sequences: Command Processing (Developing Perl)
- editor support for debugger: Editor Support for Debugging (Developing Perl)
email: Email Connectivity (Perl tutorial)
- The CPAN modules Directory (Developing Perl)
- (see also mail)
- folders for (Mail::Folder module): Handle Folders with Mail::Folder (Perl tutorial)
- handling messages (Mail::Internet module)
- - Handle Messages with Mail::Internet (Perl tutorial)
- header control (Mail::Send module): Better Header Control with Mail::Send (Perl tutorial)
- Mail modules: Email Connectivity (Perl tutorial)
- - The Mail Modules (Perl tutorial)
- matching valid addresses: Matching a Valid Mail Address (Perl tutorial)
- parsing addresses (Mail::Address module): Parse Email Addresses with Mail::Address (Perl tutorial)
- Perl-related mailing lists: Mailing Lists (Perl tutorial)
- random signatures: Program: sigrand (Perl tutorial)
- reading with POP3: Reading Mail with POP3 (Perl tutorial)
- - Retrieving Email with Net::POP3 (Perl tutorial)
  - Reading Email with Mail::POP3Client (Perl tutorial)
- sending: Sending Mail (Perl tutorial)
- - Send Email with Net::SMTP (Perl tutorial)
  - Send Email with Mail::Mailer (Perl tutorial)
- sending HTML forms via: Saving a Form to a File or Mail Pipe (Perl tutorial)
- sorting (example subroutine): Program: Sorting Your Mail (Perl tutorial)
- tracking time path of: Program: hopdelta (Perl tutorial)
Embed module: Adding Extensions (Advanced Perl Developing)
embedding Perl: Embedding Perl:The Easy Way (Advanced Perl Developing)
- Easy Embedding API (Advanced Perl Developing)
- Embedding Perl (Using Perl from C) (Perl Developing)
- Module Installation Support (Developing Perl)
- adding Perl interpreter to C program: Adding a Perl Interpreter to Your C Program (Developing Perl)
- compiling embedded programs: Compiling Embedded Programs (Developing Perl)
- evaluating Perl statement from C: Evaluating a Perl Statement from C (Developing Perl)
- in messages: Command-Line Options (Perl tutorial)
- macros for: Calling a Perl Subroutine (Advanced Perl Developing)
- perl interpreter program: Internals and Externals (Developing Perl)
- Perl stack, manipulating from C: Fiddling with the Perl Stack from C (Developing Perl)
emit_open_file procedure: Template Parser (Advanced Perl Developing)
emit_opening_statement procedure: Template Parser (Advanced Perl Developing)
empty angle operator (<>): Filehandles (Developing Perl)
empty base class test: Writing an Inheritable Class (Perl tutorial)
empty string (""): Introduction (Perl tutorial)
empty subclass test: Class Inheritance (Developing Perl)
encapsulation: OO: An Introduction (Advanced Perl Developing)
- Accessor Methods (Advanced Perl Developing)
- Object Encapsulation (Advanced Perl Developing)
- Complexities (Developing Perl)
- Using Object Methods (Developing Perl)
- Brief Refresher on Object-Oriented Lingo (Developing Perl)
- namespace-based: Tie Modules on CPAN (Developing Perl)
- objects in closures: Using Closures for Private Objects (Developing Perl)
encoding URLs: URL Encoding (Perl tutorial)
encodings, multiple-byte: Matching Multiple-Byte Characters (Perl tutorial)
encryption: crypt (Developing Perl)
- modules for: Authentication, Security, and Encryption (Developing Perl)
- Perl modules for: The CPAN modules Directory (Developing Perl)
END blocks: The Life Cycle of a Perl Program (Developing Perl)
- exit value of program, modifying: Avant-Garde Compiler, Retro Interpreter (Developing Perl)
- order of running: Avant-Garde Compiler, Retro Interpreter (Developing Perl)
- skipping: Avant-Garde Compiler, Retro Interpreter (Developing Perl)
=end command (pod): Reference: =end (Perl tutorial)
end index
- Entry widget: Text Indexes (Perl tutorial)
- Listbox widget: Listbox Indexes (Perl tutorial)
- Menu widget: Menu Indexes (Perl tutorial)
- Text widget: Text Indexes and Modifiers (Perl tutorial)
=end pod directive: Documenting Your Module with Pod (Perl tutorial)
end of string, matching: Endings: The \z, \Z, and $ Assertions (Developing Perl)
End() (Response object, PerlScript): Response methods (Perl tutorial)
END block: Package Initialization and Destruction (Advanced Perl Developing)
__END__ token: Storing Files Inside Your Program Text (Perl tutorial)
- Global Special Constants (Perl tutorial)
- Other Literal Tokens (Developing Perl)
- Generating Perl in Other Languages (Developing Perl)
- Special Variables in Alphabetical Order (Developing Perl)
endgrent (): getgrent (Developing Perl)
- Reference: endgrent (Perl tutorial)
endhostent(): Reference: endhostent (Perl tutorial)
- gethostent (Developing Perl)
ending (see terminating)
ending escape sequences for character modification: String Literals (Developing Perl)
endless loop (see infinite loops)
endnetent(): Reference: endnetent (Perl tutorial)
endprotoent(): Reference: endprotoent (Perl tutorial)
- getprotoent (Developing Perl)
endpwent()
- Reference: endpwent (Perl tutorial)
- getpwent (Developing Perl)
endservent(): Reference: endservent (Perl tutorial)
- getservent (Developing Perl)
endtag() (HTML::Parser): Reference: endtag (Perl tutorial)
English module: English (Perl tutorial)
- Format Variables (Developing Perl)
- Perl Language Extensions and Internals (Developing Perl)
enqueue method: Queues (Developing Perl)
Entry widgets (Perl/Tk): Entry (Advanced Perl Developing)
- The entry widget (Advanced Perl Developing)
- The Entry Widget (Perl tutorial)
entrycget()
- Menu widget: Menu Methods (Perl tutorial)
- Menubutton widget: Menubutton Methods (Perl tutorial)
entryconfigure()
- Menu widget: Menu Methods (Perl tutorial)
- Menubutton widget: Menubutton Methods (Perl tutorial)
EnumerateRights() (Win32::FileSecurity): Reference: EnumerateRights (Perl tutorial)
%ENV hash
- Global Special Arrays and Hashes (Perl tutorial)
- Special Variables in Alphabetical Order (Developing Perl)
- deleting from: delete (Developing Perl)
- portability of: System Interaction (Developing Perl)
Env module: How Do use and Exporter Work? (Advanced Perl Developing)
- Tying Hashes (Advanced Perl Developing)
- Env (Perl tutorial)
- Perl Language Extensions and Internals (Developing Perl)
env program, starting Perl with: Command Processing (Developing Perl)
- cleaning up: Cleaning Up Your Environment (Developing Perl)
env_proxy() (LWP::UserAgent): Reference: env_proxy (Perl tutorial)
environment variables: Environment Variables (Perl tutorial)
- Environment Variables (Developing Perl)
- Special Variables in Alphabetical Order (Developing Perl)
- CGI-related: CGI Environment Variables (Perl tutorial)
- DBI-related: DBI Environment Variables (Perl tutorial)
- Env module: Perl Language Extensions and Internals (Developing Perl)
- modules, Perl use of: Environment Variables (Developing Perl)
- PERLDB_OPTS, setting debugger options with: Unattended Execution (Developing Perl)
- PERL_DESTRUCT_LEVEL: Garbage Collection with DESTROY Methods (Developing Perl)
- portability of: System Interaction (Developing Perl)
- shells vs. Perl: Shell Traps (Developing Perl)
- taint checking: Handling Insecure Data (Developing Perl)
eof function: The while and until statements (Developing Perl)
- Reference: eof (Perl tutorial)
- HTML::Parser module: Reference: eof (Perl tutorial)
- Time Efficiency (Developing Perl)
- eof (Developing Perl)
- tied filehandle, using on: Filehandle-Tying Methods (Developing Perl)
eparams() (URI::URL): Reference: eparams (Perl tutorial)
epath() (URI::URL): Reference: epath (Perl tutorial)
eq (equal to) operator
- Equality operators (Perl tutorial)
- Universal Blunders (Developing Perl)
eq() (URI::URL): Reference: eq (Perl tutorial)
equal method: Identifying threads (Developing Perl)
equal to (=) operator: Equality Operators (Developing Perl)
equality operators: Equality operators (Perl tutorial)
- Equality Operators (Developing Perl)
equery() (URI::URL): Reference: equery (Perl tutorial)
erasing (see deleting)
err() (DBI): Reference: err (Perl tutorial)
errno: Special Variables in Alphabetical Order (Developing Perl)
Errno module: Errno (Perl tutorial)
- Perl Language Extensions and Internals (Developing Perl)
$ERRNO ($!) variable: Global Special Variables (Perl tutorial)
error messages: Developing with Style (Developing Perl)
- Diagnostic Messages (Developing Perl)
- user efficiency, improving with: User Efficiency (Developing Perl)
Error() (Win32::Internet): Reference: Error (Perl tutorial)
error_as_HTML() (HTTP::Response): Reference: error_as_HTML (Perl tutorial)
errors: The Block Form: Exception Handling (Advanced Perl Developing)
- fileno (Developing Perl)
- Diagnostic Messages (Developing Perl)
- $! variable for: Special Variables in Alphabetical Order (Developing Perl)
- Carp module: Carp (Developing Perl)
- CGI scripts: Introduction (Perl tutorial)
- - Redirecting Error Messages (Perl tutorial)
  - Fixing a 500 Server Error (Perl tutorial)
- CGI::Carp module, handling of: CGI::Carp (Developing Perl)
- controlling for other programs: Controlling the Input, Output, and Error of Another Program (Perl tutorial)
- creating uniform DBI numbers: What DBI does not provide (Advanced Perl Developing)
- eval function and: The String Form: Expression Evaluation (Advanced Perl Developing)
- exceptions in subroutines: Handling Exceptions (Perl tutorial)
- failed symbol exports: Managing unknown symbols (Developing Perl)
- insecure data: Handling Insecure Data (Developing Perl)
- out-of-memory errors: Special Variables in Alphabetical Order (Developing Perl)
- reading STDERR from programs: Reading STDERR from a Program (Perl tutorial)
- reporting filenames in: Making Perl Report Filenames in Errors (Perl tutorial)
- reporting like built-ins: Reporting Errors and Warnings Like Built-Ins (Perl tutorial)
- returning failure from subroutines: Returning Failure (Perl tutorial)
- subroutines: Error Indications (Developing Perl)
- trapping in require/use statements: Trapping Errors in require or use (Perl tutorial)
- trapping undefined function calls: Trapping Undefined Function Calls with AUTOLOAD (Perl tutorial)
- warn function, producing error messages: warn (Developing Perl)
- web server error log: Introduction (Perl tutorial)
- - Processing Server Logs (Perl tutorial)
- when parsing files: Package Initialization and Destruction (Advanced Perl Developing)
- writing to httpd or other CGI errors logs: World Wide Web (Developing Perl)
errstr() (DBI): Reference: errstr (Perl tutorial)
ESC character: String Literals (Developing Perl)
ESC in octal: String Literals (Developing Perl)
escape sequences for control characters: String Literals (Developing Perl)
/etc/group file: Time Efficiency (Developing Perl)
- getgrent (Developing Perl)
escape_from() (Mail::Internet): Reference: escape_from (Perl tutorial)
escaped sequences: Escaping Characters (Perl tutorial)
- Escaped Sequences (Perl tutorial)
/etc/hosts file: gethostent (Developing Perl)
/etc/networks file: getnetent (Developing Perl)
/etc/passwd file: Time Efficiency (Developing Perl)
- getpwent (Developing Perl)
- security and: Local Filesystem Changes (Perl for System Administration)
/etc/protocols file: getprotoent (Developing Perl)
/etc/services file: getservent (Developing Perl)
/etc/utmp file: getlogin (Developing Perl)
$EUID ($>) variable: Global Special Variables (Perl tutorial)
Eudora program: Using the OS-Specific IPC Framework. (Perl for System Administration)
Ev function: Event Details (Advanced Perl Developing)
$EVAL_ERROR variable: The String Form: Expression Evaluation (Advanced Perl Developing)
eval: Name Lookups (Developing Perl)
- Terms and List Operators (Leftward) (Perl Developing)
- References (Developing Perl)
- Time Efficiency (Developing Perl)
- eval (Developing Perl)
- die function and: die (Developing Perl)
- loops and: Time Efficiency (Developing Perl)
- packages and: Packages (Developing Perl)
- restricted (reval): Restricting namespace access (Developing Perl)
- threads, catching exceptions with: Catching exceptions from join (Developing Perl)
- translating with variables: (Developing Perl) 5.2.4. The tr/// Operator (Transliteration)
$EVAL_ERROR: Special Variables in Alphabetical Order (Developing Perl)
eval function: Exception Handling (Advanced Perl Developing)
- Reference: eval (Perl tutorial)
- exception handling with: The Block Form: Exception Handling (Advanced Perl Developing)
- expression evaluation with: The String Form: Expression Evaluation (Advanced Perl Developing)
- - Using Eval for Expression Evaluation (Advanced Perl Developing)
- for time-outs: Using Eval for Time-Outs (Advanced Perl Developing)
- improving preformance with: Using Eval for Efficiency (Advanced Perl Developing)
- in substitution: Expanding Variables in User Input (Perl tutorial)
- - Introduction (Perl tutorial)
  - Commenting Regular Expressions (Perl tutorial)
- other languages and: Eval in Other Languages (Advanced Perl Developing)
- quotation marks and: Watch Your Quotes (Advanced Perl Developing)
- security and: The String Form: Expression Evaluation (Advanced Perl Developing)
- with require/use statement: Trapping Errors in require or use (Perl tutorial)
$EVAL_ERROR ($@) variable: Global Special Variables (Perl tutorial)
eval_sv and eval_pv functions: Evaluating a Perl Statement from C (Developing Perl)
event handlers: Reading XML using XML::Parser (Perl for System Administration)
Event Log Service: Using the OS's Logging API (Perl for System Administration)
Event Viewer program: Using the OS's Logging API (Perl for System Administration)
events
- event details: Event Details (Advanced Perl Developing)
- event loops
- - Msg module: Msg: Event loop routines (Advanced Perl Developing)
  - Perl/Tk and: Starting with Perl/Tk (Advanced Perl Developing)
  - widgets and: Event Loops (Advanced Perl Developing)
- modifiers of: Event Bindings (Advanced Perl Developing)
- multiple bindings to: Multiple Bindings (Advanced Perl Developing)
- Tk resize: Responding to Tk Resize Events (Perl tutorial)
- widget event bindings: Event Bindings (Advanced Perl Developing)
example Perl scripts: FTP (Advanced Perl Developing)
- Perl examples (Perl tutorial)
exceptions: Exception Handling (Advanced Perl Developing)
- intercepting: Special Variables in Alphabetical Order (Developing Perl)
- die function and: die (Developing Perl)
- Exception.pm module: Exception.pm (Advanced Perl Developing)
- exceptions.pl module: exceptions.pl (Advanced Perl Developing)
- functions raising: Perl Functions in Alphabetical Order (Developing Perl)
- handling in subroutines: Handling Exceptions (Perl tutorial)
- handling with eval: The Block Form: Exception Handling (Advanced Perl Developing)
- in detached child threads: The detach method (Developing Perl)
- insecure data: Handling Insecure Data (Developing Perl)
- modules for: Standard Modules (Advanced Perl Developing)
- - Warnings and Exceptions (Developing Perl)
- other languages and: Eval in Other Languages (Advanced Perl Developing)
- raising on failure: Perl Language Extensions and Internals (Developing Perl)
- raising to indicate subroutine errors: Error Indications (Developing Perl)
- SWIG and: SWIG Features (Advanced Perl Developing)
- threads, catching: Catching exceptions from join (Developing Perl)
- trapping: eval (Developing Perl)
- trapping undefined function calls: Trapping Undefined Function Calls with AUTOLOAD (Perl tutorial)
$EXCEPTIONS_BEING_CAUGHT: Special Variables in Alphabetical Order (Developing Perl)
exclusive file locks: File Locking (Developing Perl)
- obtaining: File Locking (Developing Perl)
exclusive locks: Locking a File (Perl tutorial)
exclusive or (xor) operator: Bitwise Operators (Developing Perl)
- Logical and, or, not, and xor (Developing Perl)
exec(): Introduction (Perl tutorial)
- Replacing the Current Program with a Different One (Perl tutorial)
- Executing Commands Without Shell Escapes (Perl tutorial)
- Reference: exec (Perl tutorial)
exec function: exec (Developing Perl)
- filehandles, leaving open across calls: Passing Filehandles (Developing Perl)
- list argument form, avoiding shell with: Code Masquerading as Data (Developing Perl)
- portability of: (Developing Perl) 25.5. Interprocess Communication (IPC)
$EXECUTABLE_NAME ($^X) variable: Global Special Variables (Perl tutorial)
executable image file: The Life Cycle of a Perl Program (Developing Perl)
$EXECUTABLE_NAME: Special Variables in Alphabetical Order (Developing Perl)
execute() (DBI): Reference: execute (Perl tutorial)
- Database Handles and Statement Handles (Perl tutorial)
executing
- code: Executing Your Code (Developing Perl)
- code, conditionally: Logical Operators (Developing Perl)
- methods: Method Invocation (Developing Perl)
- other programs from Perl: system (Developing Perl)
- Perl program: How to Do It (Developing Perl)
- Perl programs: Command Processing (Developing Perl)
execution
- code, order of: Avant-Garde Compiler, Retro Interpreter (Developing Perl)
- Perl programs: The Life Cycle of a Perl Program (Developing Perl)
- unattended, debugger: Unattended Execution (Developing Perl)
executor: Executor (Advanced Perl Developing)
execv function (in C): exec (Developing Perl)
execvp function (in C): exec (Developing Perl)
existence of a process: Signaling Process Groups (Developing Perl)
exists(): Adding an Element to a Hash (Perl tutorial)
- Reference: exists (Perl tutorial)
- exists (Developing Perl)
- invoking on hash: Hash-Tying Methods (Developing Perl)
- multiple hash key values: Hashes with Multiple Values Per Key (Perl tutorial)
- News::Newsrc module: Reference: exists (Perl tutorial)
exit()
- Reference: exit (Perl tutorial)
- Running CGI Scripts with mod_perl (Perl tutorial)
- exit (Developing Perl)
- fork (Developing Perl)
- threads and: Thread destruction (Developing Perl)
exit status: Special Variables in Alphabetical Order (Developing Perl)
exit status, die() and: Slight Diversion
exiting
- debugger: Debugger Options (Developing Perl)
- if or unless blocks: Bare Blocks (Developing Perl)
- infinite loop: for Loops (Developing Perl)
- once-through blocks: Bare Blocks (Developing Perl)
exp(): Reference: exp (Perl tutorial)
- exp (Developing Perl)
expand() (Net::SMTP): Reference: expand (Perl tutorial)
-expand option (pack geometry manager): The pack Geometry Manager (Perl tutorial)
expanding tabs: Expanding and Compressing Tabs (Perl tutorial)
expanding variables in user input: Expanding Variables in User Input (Perl tutorial)
expansion, filename: glob (Developing Perl)
Expect module: Controlling Another Program with Expect (Perl tutorial)
- Bidirectional Communication (Developing Perl)
- The CPAN modules Directory (Developing Perl)
Expires property (response cookies): Setting cookies (Perl tutorial)
- Response properties (Perl tutorial)
ExpiresAbsolute property (Response object): Response properties (Perl tutorial)
explicit method invocations: Method Invocation (Developing Perl)
expn program (example): Program: expn and vrfy (Perl tutorial)
exponential notation: Numeric Literals (Developing Perl)
exponentiation (**) operator
- Arithmetic Operators (Perl tutorial)
- Exponentiation (Developing Perl)
@EXPORT array: Defining a Module's Interface (Perl tutorial)
- Special Variables in Alphabetical Order (Developing Perl)
- exponentiation of integers: Fiddling with the Perl Stack from C (Developing Perl)
@EXPORT_OK array (use pragma): Defining a Module's Interface (Perl tutorial)
Exporter module: Importing Symbols (Advanced Perl Developing)
- Introduction (Perl tutorial)
- Defining a Module's Interface (Perl tutorial)
- Exporter (Perl tutorial)
- Module Installation Support (Developing Perl)
- Creating Extensions (Developing Perl)
exporting: Modules (Developing Perl)
exporting from modules: Creating Modules (Developing Perl)
- importing into current package: Using Modules (Developing Perl)
- leaving off export list or deleting from import list: Module Privacy and the Exporter (Developing Perl)
- metasymbols, generic wildcards: Wildcard Metasymbols (Developing Perl)
exporting symbols: Creating Modules (Developing Perl)
- Module Privacy and the Exporter (Developing Perl)
- without using import method from Exporter: Exporting without using Exporter's import method (Developing Perl)
exporting to modules: Introduction (Perl tutorial)
-exportselection option (widgets): Common Widget Configuration Options (Perl tutorial)
@EXPORT_OK array: Special Variables in Alphabetical Order (Developing Perl)
%EXPORT_TAGS hash: Special Variables in Alphabetical Order (Developing Perl)
@EXPORT_TAGS array (use pragma): Defining a Module's Interface (Perl tutorial)
export_to_level method: Exporting without using Exporter's import method (Developing Perl)
- evaluation: The String Form: Expression Evaluation (Advanced Perl Developing)
- - Using Eval for Expression Evaluation (Advanced Perl Developing)
  - /e flag with substitutions: Expression Evaluation in Substitutions (Advanced Perl Developing)
- EXPR and LIST: Compound Statements (Developing Perl)
- interpolating within strings: Interpolating Functions and Expressions Within Strings (Perl tutorial)
- loops, separating with commas (,): for Loops (Developing Perl)
- multiple, in loops: for Loops (Developing Perl)
- Perl, supplying in replacement strings: Programmatic Patterns (Developing Perl)
- plotting: Expression plotting (Advanced Perl Developing)
EXPRs: Compound Statements (Developing Perl)
- goto operator, use with: goto (Developing Perl)
$EXTENDED_OS_ERROR: Special Variables in Alphabetical Order (Developing Perl)
EXTEND macro: Ensuring that the stack is big enough (Advanced Perl Developing)
extended regular expression syntax: Extended Regular Expressions (Perl tutorial)
$EXTENDED_OS_ERROR ($^E) variable: Global Special Variables (Perl tutorial)
extending arrays: Array Length (Developing Perl)
extending Perl: Extending Perl (Using C from Perl) (Developing Perl)
- extensions, creating: Creating Extensions (Developing Perl)
- - Perl Language Extensions and Internals (Developing Perl)
- using functions from external C libraby: Using Functions from an External C Library (Developing Perl)
- XSUB input and output: XSUB Input and Output (Developing Perl)
- XSUBs and XS language, wrapping Perl in: XS and XSUBs (Developing Perl)
Extensible Markup Language (see XML)
extension modules, Perl: Adding Extensions (Advanced Perl Developing)
external subroutines,: External Subroutines (XS) (Developing Perl)
extra path information: Extra Path Information (Perl tutorial)
extract_cookies() (HTTP::Cookies): Reference: extract_cookies (Perl tutorial)
extracting substrings: substr (Developing Perl)
extract_links() (HTML::Parser): Reference: extract_links (Perl tutorial)
extracting
- source code: Installing on Unix (Perl tutorial)
- - Standard Perl distribution (Perl tutorial)
- URLs from HTML: Extracting URLs (Perl tutorial)
ExtUtils modules: ExtUtils::Command (Perl tutorial)
ExtUtils::Command module: ExtUtils::Command (Perl tutorial)
- Module Installation Support (Developing Perl)
ExtUtils::Embed module: Adding Extensions (Advanced Perl Developing)
- ExtUtils::Embed (Perl tutorial)
- ExtUtils::Embed module: Compiling Embedded Programs (Developing Perl)
- Module Installation Support (Developing Perl)
ExtUtils::Install module: ExtUtils::Install (Perl tutorial)
- Module Installation Support (Developing Perl)