Book Home

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Index: L

\l string escape: 1.9. Controlling Case (Perl Cookbook)

-l file test operator

4.5.8. File Test Operators (Perl in a Nutshell)

-l switch, perl: 3.2. Command-Line Options (Perl in a Nutshell)

l command (Perl debugger): Chapter 6, Reference: l (Perl in a Nutshell)

Label widget (Perl/Tk): 18.7. The Label Widget (Perl in a Nutshell)

label_exists() (Mail::Folder): Chapter 14, Reference: label_exists (Perl in a Nutshell)

-labelPack option (Frame): 18.17. The Frame Widget (Perl in a Nutshell)

labels: 14.3.2. Labels and Buttons (Advanced Perl Programming)

4.2. Compound Statements (Programming Perl)

4.4.4. Loop Control (Programming Perl)

loops: 4.3.1.5. Loop control (Perl in a Nutshell)

menu: 15.14. Creating Menus with Tk (Perl Cookbook)

names for: 2.5. Names (Programming Perl)

packages and: 10. Packages (Programming Perl)

statement blocks: 4.3. Statements (Perl in a Nutshell)

with goto statement: 4.6. goto (Programming Perl)

29.2.71. goto (Programming Perl)

with loops: 4.4. Loop Statements (Programming Perl)

4.4.4. Loop Control (Programming Perl)
24.3. Programming with Style (Programming Perl)

-labelVariable option (Frame): 18.17. The Frame Widget (Perl in a Nutshell)

language extensions, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)

languages

checking characters for: 5.4.3.3. Unicode block properties (Programming Perl)
natural vs. artificial: 1.2. Natural and Artificial Languages (Programming Perl)
translating: 24.5.2. Generating Perl in Other Languages (Programming Perl)

last command (Unix): 9.5.4.1. Using Perl-only databases (Perl for System Administration)

9.5.4.2. Using Perl-cliented SQL databases (Perl for System Administration)

last index (Menu widget): 18.15.1. Menu Indexes (Perl in a Nutshell)

Last() (Mail::POP3Client): Chapter 14, Reference: Last (Perl in a Nutshell)

last access/modification times

last operator: 4.12. Finding the First List Element That Passes a Test (Perl Cookbook)

Chapter 5, Reference: last (Perl in a Nutshell)
4.3.1.5. Loop control (Perl in a Nutshell)
1.6.2.4. Breaking out: next and last (Programming Perl)
24.3. Programming with Style (Programming Perl)
4.4.4. Loop Control (Programming Perl)
4.4.4. Loop Control (Programming Perl)
4.5.1. Case Structures (Programming Perl)
24.2.1. Time Efficiency (Programming Perl)
29.2.81. last (Programming Perl)
24.1.3. C Traps (Programming Perl)
examples of
Net::NNTP module: Chapter 15, Reference: last (Perl in a Nutshell)
Net::POP3 module: Chapter 14, Reference: last (Perl in a Nutshell)
used in a do while: 4.5. Bare Blocks (Programming Perl)

$LAST_PAREN_MATCH: 28.2. Special Variables in Alphabetical Order (Programming Perl)

LastError() (Win32::OLE): Chapter 19, Reference: LastError (Perl in a Nutshell)

last_labeled_message() (Mail::Folder): Chapter 14, Reference: last_labeled_message (Perl in a Nutshell)

last_message() (Mail::Folder): Chapter 14, Reference: last_message (Perl in a Nutshell)

$LAST_PAREN_MATCH ($+) variable: 6.0. Introduction (Perl Cookbook)

4.4.5. Regular Expression Special Variables (Perl in a Nutshell)

laston program: 8.20. Program: laston (Perl Cookbook)

LaTeX, translating pod to: Chapter 4, Reference: pod2latex (Perl in a Nutshell)

lc(): 1.9. Controlling Case (Perl Cookbook)

Chapter 5, Reference: lc (Perl in a Nutshell)
29.2.82. lc (Programming Perl)

lcfirst(): 1.9. Controlling Case (Perl Cookbook)

Chapter 5, Reference: lcfirst (Perl in a Nutshell)
29.2.83. lcfirst (Programming Perl)

LDAP Data Interchange Format

6.4.3. Performing LDAP Searches (Perl for System Administration)

6.4.4. Entry Representation in Perl (Perl for System Administration)

6.4.9. Modifying Entry Attributes (Perl for System Administration)

6.4.10. Putting It All Together (Perl for System Administration)

6.4.2. The Initial LDAP Connection (Perl for System Administration)

in search operations: 6.4.3. Performing LDAP Searches (Perl for System Administration)
methods for retrieving: 6.4.4. Entry Representation in Perl (Perl for System Administration)
modifying: 6.4.9. Modifying Entry Attributes (Perl for System Administration)
separators: 6.4.10. Putting It All Together (Perl for System Administration)
values, quoting: 6.4.2. The Initial LDAP Connection (Perl for System Administration)

modifying with Perl: 6.4.8. Modifying Entry Names (Perl for System Administration)

representation in Perl: 6.4.4. Entry Representation in Perl (Perl for System Administration)

LDAP (Lightweight Directory Access Protocol)

adding/deleting: 6.4.6. Adding Entries with Standard LDAP Operations (Perl for System Administration)
anonymous authentication: 6.4.2. The Initial LDAP Connection (Perl for System Administration)
binding: 6.4.2. The Initial LDAP Connection (Perl for System Administration)
data organization of: B.1. LDAP Data Organization (Perl for System Administration)
objectClass attribute: B. The Ten-Minute LDAP Tutorial (Perl for System Administration)
Perl modules, comparing: 6.4.1. LDAP Programming with Perl (Perl for System Administration)
searching: 6.4.3. Performing LDAP Searches (Perl for System Administration)
tutorial: B. The Ten-Minute LDAP Tutorial (Perl for System Administration)

LDIF (LDAP Data Interchange Format): 6.4.10. Putting It All Together (Perl for System Administration)

6.4.5. Adding Entries with LDIF (Perl for System Administration)

directory entries with: 6.4.5. Adding Entries with LDIF (Perl for System Administration)
from Perl: 6.4.5. Adding Entries with LDIF (Perl for System Administration)

le (less than or equal) operator: 4.5.4.1. Relational operators (Perl in a Nutshell)

leading whitespace, removing: 1.14. Trimming Blanks from the Ends of a String (Perl Cookbook)

leaf objects (LDAP): 6.5.3. Dealing with Container/Collection Objects (Perl for System Administration)

from Perl: 6.5.3. Dealing with Container/Collection Objects (Perl for System Administration)

left justification: 7.1. Format Variables (Programming Perl)

left-shift (<<) operator: 3.9. Shift Operators (Programming Perl)

leftmost longest matching: 5.5. Quantifiers (Programming Perl)

length(): Chapter 5, Reference: length (Perl in a Nutshell)

29.2.84. length (Programming Perl)
byte-oriented wrapper for: 15.2. Effects of Character Semantics (Programming Perl)

LENGTH (awk variable): 28.2. Special Variables in Alphabetical Order (Programming Perl)

length, matching: 5.5. Quantifiers (Programming Perl)

-length option (Scale): 18.13. The Scale Widget (Perl in a Nutshell)

less module: 8.102. less (Perl in a Nutshell)

32.1.13. Perl Language Extensions and Internals (Programming Perl)

less than (<, lt) operator: 4.5.4.1. Relational operators (Perl in a Nutshell)

3.11. Relational Operators (Programming Perl)

less than or equal (<, le) operator: 4.5.4.1. Relational operators (Perl in a Nutshell)

3.11. Relational Operators (Programming Perl)

lexer: 18.2. Compiling Your Code (Programming Perl)

lexical analysis: 21.1. How Perl Works (Programming Perl)

in the Perl compiler: 18.2. Compiling Your Code (Programming Perl)

lexical scopes: 2.5. Names (Programming Perl)

4.8.2. Lexically Scoped Variables: my (Programming Perl)
4.9. Pragmas (Programming Perl)
package variables, searching for: 2.5.1. Name Lookups (Programming Perl)
variables attached to: 2.5. Names (Programming Perl)

lexical scoping: 3.1.2. Lexical Versus Dynamic Scoping (Advanced Perl Programming)

10.2. Making Variables Private to a Function (Perl Cookbook)
10.13. Saving Global Values (Perl Cookbook)
4.2.6. Declarations and Scope (Perl in a Nutshell)
4.7.4. Private and Local Variables (Perl in a Nutshell)

lexical variables: 3.1.1. Lexical Variables (Advanced Perl Programming)

6.1.1. Packages and Variables (Advanced Perl Programming)
7. Formats (Programming Perl)
29.2.99. my (Programming Perl)
accessing from functions: 6.2.3. Scoping Issues (Programming Perl)
file-scoped, storing anonymous subroutine in: 12.5.5. Private Methods (Programming Perl)
in functions or files, showing: 32.1.19. Perl Compiler and Code Generator (Programming Perl)
persistence across function calls: 6.2.3. Scoping Issues (Programming Perl)
recursive lexical pad stack: 18.3. Executing Your Code (Programming Perl)
symbolic references and: 8.4. Symbolic References (Programming Perl)
threads, accessing in: 17.2.2. Data Access (Programming Perl)

lexical warnings: 32.1.15. Warnings and Exceptions (Programming Perl)

${^WARNING_BITS}: 28.2. Special Variables in Alphabetical Order (Programming Perl)

lexically scoped declarations: 4.8. Scoped Declarations (Programming Perl)

lexicals: 4.8.1. Scoped Variable Declarations (Programming Perl)

(see also lexical scope)

lib module: 8.103. lib (Perl in a Nutshell)

32.1.17. Module Installation Support (Programming Perl)

lib pragma: 11.1. Using Modules (Programming Perl)

libcrack library: 10.5. Preventing Suspicious Activities (Perl for System Administration)

from Perl: 10.5. Preventing Suspicious Activities (Perl for System Administration)

libnet modules: 14. Email Connectivity (Perl in a Nutshell)

libnet package: 8.1.3. Speaking to the Mail Protocols Directly (Perl for System Administration)

from Perl: 8.1.3. Speaking to the Mail Protocols Directly (Perl for System Administration)

libpcap library: 10.4.1. Perl Saves the Day (Perl for System Administration)

from Perl: 10.4.1. Perl Saves the Day (Perl for System Administration)

libraries: 6.2. Packages and Files (Advanced Perl Programming)

12.0. Introduction (Perl Cookbook)

C/C++, loading as Perl extensions: 32.1.17. Module Installation Support (Programming Perl)

32.1.17. Module Installation Support (Programming Perl)

ExtUtils::Liblist module: 32.1.17. Module Installation Support (Programming Perl)

math library, C: 21.3.4. Using Functions from an External C Library (Programming Perl)

Perl, installing modules into: 22.2.3. Installing CPAN Modules into the Perl Library (Programming Perl)

Perl library files, searching for: 19.2. Environment Variables (Programming Perl)

uninstalled extensions from MakeMaker: 32.1.17. Module Installation Support (Programming Perl)

library modules, functions for: 5.1. Perl Functions by Category (Perl in a Nutshell)

libwww-perl modules: 20.0. Introduction (Perl Cookbook)

life cycle, Perl programs: 18.1. The Life Cycle of a Perl Program (Programming Perl)

code generation phase: 18.1. The Life Cycle of a Perl Program (Programming Perl)
compilation phase: 18.1. The Life Cycle of a Perl Program (Programming Perl)
execution phase: 18.1. The Life Cycle of a Perl Program (Programming Perl)
parse tree reconstruction: 18.1. The Life Cycle of a Perl Program (Programming Perl)

Lightweight Directory Access Protocol (see LDAP)

from Perl (see LDAP)

LIKE wildcards (SQL): D.3.2. Retrieving a Subset of the Rows in a Table (Perl for System Administration)

from Perl: D.3.2. Retrieving a Subset of the Rows in a Table (Perl for System Administration)

directories, hidden: 10.2.1. Local Signs of Peril (Perl for System Administration)

driver: 2.1. Perl to the Rescue (Perl for System Administration)

NIS+ and: 5.2.1. NIS+ (Perl for System Administration)

privileges on, dropping: 1.6.2. Drop Your Privileges as Soon as Possible (Perl for System Administration)

Sybase OpenClient libraries and: 7.1. Interacting with an SQL Server from Perl (Perl for System Administration)

line breaks: 6.6. Matching Multiple Lines (Perl Cookbook)

counting lines in files: in a File 8.2. Counting Lines (or Paragraphs or Records) (Perl Cookbook)
defining lines: 8.11. Processing Binary Files (Perl Cookbook)
deleting last file line: 8.10. Removing the Last Line of a File (Perl Cookbook)
extracting ranges of lines: 6.8. Extracting a Range of Lines (Perl Cookbook)
matching across multiple lines: 6.6. Matching Multiple Lines (Perl Cookbook)
random lines from files: 8.6. Picking a Random Line from a File (Perl Cookbook)
randomizing file line order: 8.7. Randomizing All Lines (Perl Cookbook)
reading files backwards: 8.4. Reading a File Backwards by Line or Paragraph (Perl Cookbook)
reading with continuation characters: 8.1. Reading Lines with Continuation Characters (Perl Cookbook)

line-end processing, automatic: 19.1.3. Switches (Programming Perl)

line input operators (see angle operator)

LINE: (implicit loop label): 7.7. Writing a Filter (Perl Cookbook)

line-input <...> operator: 4.9. Filehandles (Perl in a Nutshell)

line mode interfaces: 15.0. Introduction (Perl Cookbook)

of input file: 28.2. Special Variables in Alphabetical Order (Programming Perl)

line-oriented quoting: 2.6.6. "Here" Documents (Programming Perl)

line reading operator: 1.4. Filehandles (Programming Perl)

line separator character: 2.2. Molecules (Programming Perl)

__LINE__; setting: 24.5.2. Generating Perl in Other Languages (Programming Perl)

line counter (see $. variable)

line terminators, Internet programs: 16.5.2. Networking Servers (Programming Perl)

__LINE__ token: 10.4. Determining Current Function Name (Perl Cookbook)

4.4.4. Global Special Constants (Perl in a Nutshell)
2.6.8. Other Literal Tokens (Programming Perl)

LineInfo option (debugger): 20.3.3. Debugger Options (Programming Perl)

line-end processing: 3.2. Command-Line Options (Perl in a Nutshell)

LineInfo option (PERLDB_OPTS): 6.4. Customizing the Debugger (Perl in a Nutshell)

boundary assertions: 5.6.1. Beginnings: The \A and ^ Assertions (Programming Perl)

linestart, lineend modifiers (Text widget): 18.11.1. Text Indexes and Modifiers (Perl in a Nutshell)

Lingua::EN::Inflect module: 2.18. Printing Correct Plurals (Perl Cookbook)

link(): Chapter 5, Reference: link (Perl in a Nutshell)

29.2.85. link (Programming Perl)

link object (PerlScript): 20.1.1. The Document Object (Perl in a Nutshell)

links: 29.2.123. readlink (Programming Perl)

HTTP, searching for: 1.7. Regular Expressions (Programming Perl)

Lint backend (Perl compiler): 3.4. The Perl Compiler (Perl in a Nutshell)

lint (C program verifier): 18.6. Code Development Tools (Programming Perl)

Linux, installing Perl and: 2.3.1. Installing on Unix (Perl in a Nutshell)

List()

Mail::POP3Client module: Chapter 14, Reference: List (Perl in a Nutshell)
Win32::Internet module: Chapter 19, Reference: List (Perl in a Nutshell)

list context: 4.2.5. Scalar and List Contexts (Perl in a Nutshell)

1.8. List Processing (Programming Perl)
2.7.1. Scalar and List Context (Programming Perl)
angle operator in: Operator (Programming Perl) 2.11.2. Line Input (Angle)
backslash operator, supplying: 8.3.6. Other Tricks You Can Do with Hard References (Programming Perl)
comma operator in: 3.18. Comma Operators (Programming Perl)
conditional operator in: 3.16. Conditional Operator (Programming Perl)
detecting: 10.6. Detecting Return Context (Perl Cookbook)
evaluating expressions in (debugger): 20.2.4. Display (Programming Perl)
expressions in (see LISTs)
forcing scalar context instead: 29.2.137. scalar (Programming Perl)
foreach statements, providing: 1.6.2.3. The foreach statement (Programming Perl)
functions in: 29. Functions (Programming Perl)
hash variables, using in: 2.9. Hashes (Programming Perl)
hashes in: 1.2.1.2.2. Hashes. (Programming Perl)
list assignment in: 3.17. Assignment Operators (Programming Perl)
lvalues in: 4.8.1. Scoped Variable Declarations (Programming Perl)
m// (match) operator in: (Programming Perl) 5.2.2. The m// Operator (Matching)
m//g, listing all matches found: (Programming Perl) 5.2.2. The m// Operator (Matching)
operations behaving differently in: 24.1.2. Frequently Ignored Advice (Programming Perl)
range (..) operator in: 3.15. Range Operator (Programming Perl)
recognizing in debugger: 20.1. Using the Debugger (Programming Perl)
subroutines, calling and evaluating in: 6.2. Semantics (Programming Perl)

list method, current thread objects in process: 17.2.1.6. Listing current threads (Programming Perl)

list operators: 3. Unary and Binary Operators (Programming Perl)

3.1. Terms and List Operators (Leftward) (Programming Perl)
3.19. List Operators (Rightward) (Programming Perl)
unary operators, distinguishing from: 3.10. Named Unary and File Test Operators (Programming Perl)

$LIST_SEPARATOR ($") variable: 4.4.1. Global Special Variables (Perl in a Nutshell)

list values, arrays and: 2.8. List Values and Arrays (Programming Perl)

list active command (NNTP): 15.1. The NNTP Protocol (Perl in a Nutshell)

list_all_labels() (Mail::Folder): Chapter 14, Reference: list_all_labels (Perl in a Nutshell)

list assignment: 1.3. Exchanging Values Without Using Temporary Variables (Perl Cookbook)

Listbox widget (Perl/Tk): 18.10. The Listbox Widget (Perl in a Nutshell)

listen(): 17.0. Introduction (Perl Cookbook)

Chapter 5, Reference: listen (Perl in a Nutshell)

Socket module: 13.1. Built-in Socket Functions (Perl in a Nutshell)

13.1.3. Server Connections (Perl in a Nutshell)

listen function: 29.2.86. listen (Programming Perl)

Listen option

IO::Socket::INET module: 13.2.4. IO::Socket::INET Reference (Perl in a Nutshell)
IO::Socket::UNIX module: 13.2.5. IO::Socket::UNIX Reference (Perl in a Nutshell)

listgroup() (Net::NNTP): Chapter 15, Reference: listgroup (Perl in a Nutshell)

listing code: 20.2.5. Locating Code (Programming Perl)

list_labels() (Mail::Folder): Chapter 14, Reference: list_labels (Perl in a Nutshell)

list prototype symbol (@): 4.7.5. Prototypes (Perl in a Nutshell)

LISTs: 1.8. List Processing (Programming Perl)

4.2. Compound Statements (Programming Perl)

$LIST_SEPARATOR: 28.2. Special Variables in Alphabetical Order (Programming Perl)

literals: 5.1. The Regular Expression Bestiary (Programming Perl)

numeric (see numeric literals)
pseudoliterals (see input operators)
string (see string literals)
UTF-8, enabling use in: 15.2. Effects of Character Semantics (Programming Perl)

little-endian

25.2. Endianness and Number Width (Programming Perl)

L<> interior sequence (pod): 4.11.2. Interior sequences (Perl in a Nutshell)

-l option (dprofpp): 6.5. The Perl Profiler (Perl in a Nutshell)

.lnk files: 19.16. Win32::Shortcut (Perl in a Nutshell)

Load()

Win32::OLE::Const module: 19.18.5. Win32::OLE::Const (Perl in a Nutshell)
Win32::Registry module: Chapter 19, Reference: Load (Perl in a Nutshell)
Win32::Shortcut module: Chapter 19, Reference: Load (Perl in a Nutshell)

load_all function: 11.3.1.2. Retrieving objects (Advanced Perl Programming)

load path: 6.2.1. Load Path (Advanced Perl Programming)

loader program (example): 15.17. Removing the DOS Shell Window with Windows Perl/Tk (Perl Cookbook)

loading data structures: 9.6.3. Generation of a Hash of Complex Records (Programming Perl)

loading functions

AutoLoader module: 8.3. AutoLoader (Perl in a Nutshell)
DynaLoader module: 8.44. DynaLoader (Perl in a Nutshell)
SelfLoader module: 8.129. SelfLoader (Perl in a Nutshell)

local(): 10.13. Saving Global Values (Perl Cookbook)

10.14. Redefining a Function (Perl Cookbook)

16.16. Temporarily Overriding a Signal Handler (Perl Cookbook)

Chapter 5, Reference: local (Perl in a Nutshell)

in subroutines, example of: 10.13. Saving Global Values (Perl Cookbook)

10.14. Redefining a Function (Perl Cookbook)
16.16. Temporarily Overriding a Signal Handler (Perl Cookbook)
Chapter 5, Reference: local (Perl in a Nutshell)

local declaration: 29.2.87. local (Programming Perl)

my declarations, using for: 29.2.87. local (Programming Perl)

local function: 4.8.1. Scoped Variable Declarations (Programming Perl)

4.8.2. Lexically Scoped Variables: my (Programming Perl)

29.2.87. local (Programming Perl)

my declarations, using for: 4.8.1. Scoped Variable Declarations (Programming Perl)

4.8.2. Lexically Scoped Variables: my (Programming Perl)
29.2.87. local (Programming Perl)

common programming errors with: 24.1.1. Universal Blunders (Programming Perl)

my declaration, using instead of: 24.1.2. Frequently Ignored Advice (Programming Perl)

local operator: 1.2.3. References to Anonymous Storage (Advanced Perl Programming)

3.1.2. Lexical Versus Dynamic Scoping (Advanced Perl Programming)

Local option (IO::Socket::UNIX): 13.2.5. IO::Socket::UNIX Reference (Perl in a Nutshell)

LocalAddr option (IO::Socket::INET): 13.2.4. IO::Socket::INET Reference (Perl in a Nutshell)

locale, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)

locale module: 8.104. locale (Perl in a Nutshell)

32.1.6. Internationalization and Locale (Programming Perl)

locale settings: 6.12. Honoring Locale Settings in Regular Expressions (Perl Cookbook)

locales

decimal points in formats: 7. Formats (Programming Perl)
declarations, string comparisons and: 3.11. Relational Operators (Programming Perl)
modules for: 32.1.6. Internationalization and Locale (Programming Perl)
Perl character class shortcuts and: 5.4.2. Classic Perl Character Class Shortcuts (Programming Perl)
Unicode and: 29.2.82. lc (Programming Perl)
use locale pragma with POSIX character classes: 5.4.4. POSIX-Style Character Classes (Programming Perl)

localization: 22.1. The CPAN modules Directory (Programming Perl)

(see also locale)

localized values, saving: 18.3. Executing Your Code (Programming Perl)

localizing functions: 10.14. Redefining a Function (Perl Cookbook)

localizing variables: 1.2.3. References to Anonymous Storage (Advanced Perl Programming)

LocalPort option (IO::Socket::INET): 13.2.4. IO::Socket::INET Reference (Perl in a Nutshell)

localtime(): 3.0. Introduction (Perl Cookbook)

3.8. Printing a Date (Perl Cookbook)
Chapter 5, Reference: localtime (Perl in a Nutshell)
4.2.5. Scalar and List Contexts (Perl in a Nutshell)

localtime function: 29.2.88. localtime (Programming Perl)

32.1.1. Data Types (Programming Perl)
32.1.7. Operating System Interfaces (Programming Perl)

location object (PerlScript): 20.1. Client-Side PerlScript (Perl in a Nutshell)

lock function

data access control in threads: 17.2.2.1. Synchronizing access with lock (Programming Perl)
reference as argument for: 8.1. What Is a Reference? (Programming Perl)

lockarea program: 7.22. Program: lockarea (Perl Cookbook)

locked attribute: 12.7.6. New Tricks (Programming Perl)

locked attribute (subroutines): 6.5. Subroutine Attributes (Programming Perl)

lockfile program: 3.3.4. Account System Wrap-Up (Perl for System Administration)

locking: 29.2.89. lock (Programming Perl)

blocking signals: 16.20. Blocking Signals (Perl Cookbook)
DBK files: 14.5. Locking DBM Files (Perl Cookbook)
region-specific locks: 7.22. Program: lockarea (Perl Cookbook)

locking files: 16.2.1. File Locking (Programming Perl)

7.11. Locking a File (Perl Cookbook)

7.21. Program: netlock (Perl Cookbook)

DBM files: 16.2.1. File Locking (Programming Perl)

29.2.22. dbmopen (Programming Perl)

dissolving locks by closing files: 16.2.1. File Locking (Programming Perl)

flock function: 29.2.39. flock (Programming Perl)

shared and exclusive locks: 16.2.1. File Locking (Programming Perl)

locking methods: 17.2.2.5. Locking methods (Programming Perl)

locking subroutines: 17.2.2.3. Locking subroutines (Programming Perl)

log(): 2.13. Taking Logarithms (Perl Cookbook)

Chapter 5, Reference: log (Perl in a Nutshell)

log function: 29.2.90. log (Programming Perl)

log files: 19.0. Introduction (Perl Cookbook)

20.12. Parsing a Web Server Log File (Perl Cookbook)

analyzing

black box approach: 9.5.3. Black Boxes (Perl for System Administration)
database approach: 9.5.4. Using Databases (Perl for System Administration)
read-remember-process: 9.5.2. Read-Remember-Process (Perl for System Administration)
stream read-count: 9.5.1. Stream Read-Count (Perl for System Administration)

binary

Event Log Service: 9.2.3. Using the OS's Logging API (Perl for System Administration)
wtmp: 9.2. Binary Log Files (Perl for System Administration)

circular buffering of: 9.4.2. Circular Buffering (Perl for System Administration)

disk space problems and: 9.4. Disk Space Problems (Perl for System Administration)

mail log data, summarizing: 9.5.3. Black Boxes (Perl for System Administration)

processing: 20.13. Processing Server Logs (Perl Cookbook)

rotating: 9.4.1. Log Rotation (Perl for System Administration)

security of, when processing: 9.4.2.2. Security in log processing programs (Perl for System Administration)

stateful vs. stateless: 9.3. Stateful and Stateless Data (Perl for System Administration)

text: 9.1. Text Logs (Perl for System Administration)

logarithm: 29.2.90. log (Programming Perl)

log_base() (example): 2.13. Taking Logarithms (Perl Cookbook)

logarithms (mathematic): 2.13. Taking Logarithms (Perl Cookbook)

LOGDIR variable: 3.3. Environment Variables (Perl in a Nutshell)

19.2. Environment Variables (Programming Perl)

Logfile::Apache: 20.13. Processing Server Logs (Perl Cookbook)

Logfile\:\:Rotate module: 9.4.1. Log Rotation (Perl for System Administration)

L0phtCrack program: 10.5. Preventing Suspicious Activities (Perl for System Administration)

logfiles, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)

logical

AND (&&) operator: Operators (Programming Perl) 3.14. C-Style Logical (Short-Circuit)

negation (!) operator: 3.5. Ideographic Unary Operators (Programming Perl)

operators: Operators (Programming Perl) 3.14. C-Style Logical (Short-Circuit)

3.20. Logical and, or, not, and xor (Programming Perl)

OR (||) operator: Operators (Programming Perl) 3.14. C-Style Logical (Short-Circuit)

separation, parent and child processes: 17.1. The Process Model (Programming Perl)

logical functionality in patterns: 6.17. Expressing AND, OR, and NOT in a Single Pattern (Perl Cookbook)

logical operators: 4.5.9. Logical Operators (Perl in a Nutshell)

1.5.5. Logical Operators (Programming Perl)
or operator: 4.7. Global Declarations (Programming Perl)
overloading: 13.3. Overloadable Operators (Programming Perl)
Perl, doing alternation: 5.9.1. Letting Perl Do the Work (Programming Perl)
precedence of: 12.3.3. Syntactic Snafus with Indirect Objects (Programming Perl)

logical text widget positioning: 14.3.5.2. Inserting text at logical positions (Advanced Perl Programming)

Net::FTP module: Chapter 16, Reference: login (Perl in a Nutshell)

Net::Netrc module: Chapter 16, Reference: login (Perl in a Nutshell)

Net::POP3 module: Chapter 14, Reference: login (Perl in a Nutshell)

14.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)

Login() (Mail::POP3Client): Chapter 14, Reference: Login (Perl in a Nutshell)

14.2.8.6. Explicitly opening and closing connections (Perl in a Nutshell)

login entries (.netrc): 16.3. FTP Configuration with Net::Netrc (Perl in a Nutshell)

functions dealing with: 29.1. Perl Functions by Category (Programming Perl)
getgrent function: 29.2.44. getgrent (Programming Perl)
getgrgid function, returning: 29.2.45. getgrgid (Programming Perl)
getgrnam function, returning: 29.2.46. getgrnam (Programming Perl)
getlogin function for: 29.2.50. getlogin (Programming Perl)

login sessions: 15.0. Introduction (Perl Cookbook)

logn() (Math::Complex): 2.13. Taking Logarithms (Perl Cookbook)

long longs: 29.2.108. pack (Programming Perl)

longjmp function: 5.6. Using Eval for Time-Outs (Advanced Perl Programming)

LongReadLen attribute (DBI): 12.2.3. Database Handles and Statement Handles (Perl in a Nutshell)

longs: 29.2.108. pack (Programming Perl)

LongTruncOk attribute (DBI): 12.2.3. Database Handles and Statement Handles (Perl in a Nutshell)

look command (CPAN.pm): Chapter 2, Reference: look (Perl in a Nutshell)

lookahead: 5.10.1. Lookaround Assertions (Programming Perl)

lookaround: 5.10.1. Lookaround Assertions (Programming Perl)

lookbehind: 5.10.1. Lookaround Assertions (Programming Perl)

lookup() (Net::Netrc): Chapter 16, Reference: lookup (Perl in a Nutshell)

loop variables: 4.4. Doing Something with Every Element in a List (Perl Cookbook)

loops

4.3.1. Conditionals and Loops (Perl in a Nutshell)

24.1.1. Universal Blunders (Programming Perl)

Constructs (Programming Perl) 1.6.2. Iterative (Looping)

4.4. Loop Statements (Programming Perl)

24.1.1. Universal Blunders (Programming Perl)

24.3. Programming with Style (Programming Perl)

SUBROUTINE operator: 4.1. Simple Statements (Programming Perl)

comments and blank lines, discarding before processing: 5.9.1. Letting Perl Do the Work (Programming Perl)

control operators for: 4.4.4. Loop Control (Programming Perl)

endless/infinite

eval function within: 24.2.1. Time Efficiency (Programming Perl)

extracting slices, multidimensional arrays: 9.1.4. Slices (Programming Perl)

for loops: 1.6.2.2. The for statement (Programming Perl)

foreach loops: 1.6.2.3. The foreach statement (Programming Perl)

\G assertion, using in: 5.6.5. Where You Left Off: The \G Assertion (Programming Perl)

infinite: 4.4.2. for Loops (Programming Perl)

iterating scripts over filenames: 3.2. Command-Line Options (Perl in a Nutshell)

iteration through: 4.4.2. for Loops (Programming Perl)

labels for: 4.4.4. Loop Control (Programming Perl)

last operator: 4.4.2. for Loops (Programming Perl)

29.2.81. last (Programming Perl)

next and last operators: 1.6.2.4. Breaking out: next and last (Programming Perl)

next operator: 29.2.101. next (Programming Perl)

redo operator and: 29.2.126. redo (Programming Perl)

reset function and: 29.2.130. reset (Programming Perl)

s/// (substitution) operator, using on arrays: 5.2.3.1. Modifying strings en passant (Programming Perl)

using for: 4.4.2. for Loops (Programming Perl)

using in (global substitutions): 5.2.3.2. When a global substitution just isn't global enough (Programming Perl)

using until: 4.4.1. while and until Statements (Programming Perl)

using while: 4.4.1. while and until Statements (Programming Perl)

while loops: 1.6.2.1. The while and until statements (Programming Perl)

doc directory (CPAN), official Perl manpages: 22. CPAN (Programming Perl)

low-level socket access functions: 5.1. Perl Functions by Category (Perl in a Nutshell)

lower() (Canvas): 18.12.3. Canvas Methods (Perl in a Nutshell)

lowercase, converting to: 2.6.2. String Literals (Programming Perl)

lowercase program (example): 7.7. Writing a Filter (Perl Cookbook)

lpa() (Net::Netrc): Chapter 16, Reference: lpa (Perl in a Nutshell)

lport manpage, function portability information: 29.2. Perl Functions in Alphabetical Order (Programming Perl)

ls() (Net::FTP): Chapter 16, Reference: ls (Perl in a Nutshell)

lsof program: 4.4.2. Tracking Operations in Unix (Perl for System Administration)

lst program: 9.12. Program: lst (Perl Cookbook)

lstat(): Chapter 5, Reference: lstat (Perl in a Nutshell)

29.2.91. lstat (Programming Perl)

32.1.4. Filenames, Filesystems, and File Locking (Programming Perl)

10.1.1. Local Filesystem Changes (Perl for System Administration)

< (left angle bracket)

for filename globbing: 2.11.3. Filename Globbing Operator (Programming Perl)

for left justification: 7.1. Format Variables (Programming Perl)

for line input: Operator (Programming Perl) 2.11.2. Line Input (Angle)

in debugger commands: 20.2.6. Actions and Command Execution (Programming Perl)

in filenames: 29.2.104. open (Programming Perl)

less than operator: 3.11. Relational Operators (Programming Perl)

<= (less than or equal) operator: 1.5.6. Some Numeric and String Comparison Operators (Programming Perl)

3.11. Relational Operators (Programming Perl)

<=> (comparison) operator: 1.5.6. Some Numeric and String Comparison Operators (Programming Perl)

29.2.159. sort (Programming Perl)

<<= (assignment) operator: 3.17. Assignment Operators (Programming Perl)

<< for here documents: 2.6.6. "Here" Documents (Programming Perl)

lt (less-than) operator: 4.5.4.1. Relational operators (Perl in a Nutshell)

lvaluable functions: 1.1. Accessing Substrings (Perl Cookbook)

lvalues

2.4. Variables (Programming Perl)

2.3. Built-in Data Types (Programming Perl)

assignment operators and: 3.17. Assignment Operators (Programming Perl)

lvalue attribute, subroutines: 6.5. Subroutine Attributes (Programming Perl)

6.5.2. The lvalue Attribute (Programming Perl)

methods, declaring to indicate return of: 12.7.6. New Tricks (Programming Perl)

modifiers and: 4.8.1. Scoped Variable Declarations (Programming Perl)

operators and: 1.5.3. Assignment Operators (Programming Perl)

pattern-matching operators, use on: 5.2. Pattern-Matching Operators (Programming Perl)

LWP library

17. The LWP Library (Perl in a Nutshell)

HTML modules: 17.4. The HTML Module (Perl in a Nutshell)

HTML::Element: 17.4.2. HTML::Element (Perl in a Nutshell)
HTML::FormatPS: 17.4.4. HTML::FormatPS (Perl in a Nutshell)
HTML::FormatText: 17.4.5. HTML::FormatText (Perl in a Nutshell)
HTML::Parser: 17.4.1. HTML::Parser (Perl in a Nutshell)
HTML::TreeBuilder: 17.4.3. HTML::TreeBuilder (Perl in a Nutshell)

HTTP modules

HTTP::Cookies: 17.3.6. HTTP::Cookies (Perl in a Nutshell)

HTTP::Cookies::Netscape: 17.3.6.1. HTTP::Cookies::Netscape (Perl in a Nutshell)

HTTP::Daemon: 17.3.7. HTTP::Daemon (Perl in a Nutshell)

HTTP::Daemon::ClientConn: 17.3.7.1. HTTP::Daemon::ClientConn methods (Perl in a Nutshell)

HTTP::Date: 17.3.5. HTTP::Date (Perl in a Nutshell)

HTTP::Headers: 17.3.3. HTTP::Headers (Perl in a Nutshell)

HTTP::Message: 17.3.8. HTTP::Message (Perl in a Nutshell)

HTTP::Request: 17.1. LWP Overview (Perl in a Nutshell)

17.3.1. HTTP::Request (Perl in a Nutshell)

HTTP::Response: 17.1. LWP Overview (Perl in a Nutshell)

17.3.2. HTTP::Response (Perl in a Nutshell)

HTTP::Status: 17.3.4. HTTP::Status (Perl in a Nutshell)

LWP modules: 20.0. Introduction (Perl Cookbook)

extracting HTML tags: 20.6. Extracting or Removing HTML Tags (Perl Cookbook)

LWP::Debug module: 17.2. The LWP Modules (Perl in a Nutshell)

LWP::Heuristic module: 20.1. Fetching a URL from a Perl Script (Perl Cookbook)

LWP::MediaTypes module: 17.2. The LWP Modules (Perl in a Nutshell)

LWP::Protocol module: 17.2. The LWP Modules (Perl in a Nutshell)

LWP::Request module: 20.1. Fetching a URL from a Perl Script (Perl Cookbook)

LWP::Response module: 20.1. Fetching a URL from a Perl Script (Perl Cookbook)

LWP::RobotUA module: 20.11. Creating a Robot (Perl Cookbook)

17.2. The LWP Modules (Perl in a Nutshell)
17.2.1. LWP::RobotUA sections (Perl in a Nutshell)

LWP::Simple module: 20.1. Fetching a URL from a Perl Script (Perl Cookbook)

20.10. Mirroring Web Pages (Perl Cookbook)
17.2. The LWP Modules (Perl in a Nutshell)
17.2.2. LWP::Simple (Perl in a Nutshell)

LWP::UserAgent module: 20.1. Fetching a URL from a Perl Script (Perl Cookbook)

17.1. LWP Overview (Perl in a Nutshell)
17.2. The LWP Modules (Perl in a Nutshell)
17.2.3. LWP::UserAgent (Perl in a Nutshell)

URI modules: 17.5. The URI Module (Perl in a Nutshell)

URI::Escape: 17.5. The URI Module (Perl in a Nutshell)
URI::Heuristic: 17.5. The URI Module (Perl in a Nutshell)
URI::URL: 17.5.2. URI::URL (Perl in a Nutshell)

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