Index: E
Symbols
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Index: E
- @EXPORT array: 28.2. Special Variables in Alphabetical Order
- @EXPORT_OK array: 28.2. Special Variables in Alphabetical Order
- %EXPORT_TAGS hash: 28.2. Special Variables in Alphabetical Order
- -e (execute) command-line switch: 19.1.3. Switches
- -e (exists) file test: 1.5.7. Some File Test Operators
- 3.10. Named Unary and File Test Operators
- /e pattern modifier: 5.2.3. The s/// Operator (Substitution)
- each function: 9.4.3. Access and Printing of a Hash of Hashes
- 14.3.1. Hash-Tying Methods
- 29.2.30. each
- editors, support for debugging: 20.3.1. Editor Support for Debugging
- effective GID (group ID): 28.2. Special Variables in Alphabetical Order
- effective UID ($EFFECTIVE_USER_ID): 28.2. Special Variables in Alphabetical Order
- $EFFECTIVE_GROUP_ID: 28.2. Special Variables in Alphabetical Order
- 28.2. Special Variables in Alphabetical Order
- $EFFECTIVE_USER_ID: 28.2. Special Variables in Alphabetical Order
- efficiency (see performance)
- profiling: 20.6. The Perl Profiler
- elements in arrays:
1.2.1.2.1. Arrays.
- else-if statements: 1.6.1.1. The if and unless statements
- ellipses (...): 5.3.1. Metasymbol Tables
- else statements: 1.6.1.1. The if and unless statements
- emacs
- editor support for debugger: 20.3.1. Editor Support for Debugging
- regular expressions, use of: 1.7. Regular Expressions
- -*- sequences: 19.1. Command Processing
- email: 22.1. The CPAN modules Directory
- (see also mail)
- embedding Perl: 21.4. Embedding Perl (Using Perl from C)
- 32.1.17. Module Installation Support
- adding Perl interpreter to C program: 21.4.2. Adding a Perl Interpreter to Your C Program
- compiling embedded programs: 21.4.1. Compiling Embedded Programs
- evaluating Perl statement from C: 21.4.4. Evaluating a Perl Statement from C
- perl interpreter program: 21. Internals and Externals
- Perl stack, manipulating from C: 21.4.5. Fiddling with the Perl Stack from C
- empty angle operator (<>): 1.4. Filehandles
- empty subclass test: 12.5. Class Inheritance
- encapsulation: 1.2.1.3. Complexities
- 8.3.4. Using Object Methods
- 12.1. Brief Refresher on Object-Oriented Lingo
- namespace-based: 14.6. Tie Modules on CPAN
- objects in closures: 12.7.5. Using Closures for Private Objects
- encryption: 29.2.20. crypt
- modules for: 32.1.12. Authentication, Security, and Encryption
- Perl modules for: 22.1. The CPAN modules Directory
- END blocks: 18.1. The Life Cycle of a Perl Program
- exit value of program, modifying: 18.7. Avant-Garde Compiler, Retro Interpreter
- order of running: 18.7. Avant-Garde Compiler, Retro Interpreter
- skipping: 18.7. Avant-Garde Compiler, Retro Interpreter
- end of string, matching: 5.6.2. Endings: The \z, \Z, and $ Assertions
- __END__ token: 2.6.8. Other Literal Tokens
- 24.5.2. Generating Perl in Other Languages
- 28.2. Special Variables in Alphabetical Order
- endgrent function: 29.2.44. getgrent
- endhostent function: 29.2.49. gethostent
- ending (see terminating)
- ending escape sequences for character modification: 2.6.2. String Literals
- endless loop (see infinite loops)
- endprotoent function: 29.2.60. getprotoent
- endpwent function: 29.2.61. getpwent
- endservent function: 29.2.66. getservent
- English module: 7.1. Format Variables
- 32.1.13. Perl Language Extensions and Internals
- enqueue method: 17.2.3.1. Queues
- %ENV hash: 28.2. Special Variables in Alphabetical Order
- deleting from: 29.2.24. delete
- portability of: 25.4. System Interaction
- Env module: 32.1.13. Perl Language Extensions and Internals
- env program, starting Perl with: 19.1. Command Processing
- cleaning up: 23.1.2. Cleaning Up Your Environment
- environment variables: 19.2. Environment Variables
- 28.2. Special Variables in Alphabetical Order
- Env module: 32.1.13. Perl Language Extensions and Internals
- modules, Perl use of: 19.2. Environment Variables
- PERLDB_OPTS, setting debugger options with: 20.4. Unattended Execution
- PERL_DESTRUCT_LEVEL: 12.6.1. Garbage Collection with DESTROY Methods
- portability of: 25.4. System Interaction
- shells vs. Perl: 24.1.4. Shell Traps
- taint checking: 23.1. Handling Insecure Data
- eof function: 1.6.2.1. The while and until statements
- 24.2.1. Time Efficiency
- 29.2.31. eof
- tied filehandle, using on: 14.4.1. Filehandle-Tying Methods
- eq operator: 24.1.1. Universal Blunders
- equal method: 17.2.1.5. Identifying threads
- equal to (=) operator: 3.12. Equality Operators
- equality operators: 3.12. Equality Operators
- erasing (see deleting)
- errno: 28.2. Special Variables in Alphabetical Order
- Errno module: 32.1.13. Perl Language Extensions and Internals
- error messages: 24.3. Programming with Style
- 33. Diagnostic Messages
- user efficiency, improving with: 24.2.6. User Efficiency
- errors: 29.2.38. fileno
- 33. Diagnostic Messages
- Carp module: 32.3. Carp
- CGI::Carp module, handling of: 32.5. CGI::Carp
- $@ variable for: 28.2. Special Variables in Alphabetical Order
- $! variable for: 28.2. Special Variables in Alphabetical Order
- $? variable for: 28.2. Special Variables in Alphabetical Order
- failed symbol exports: 11.2.1.3. Managing unknown symbols
- insecure data: 23.1. Handling Insecure Data
- out-of-memory errors: 28.2. Special Variables in Alphabetical Order
- subroutines: 6.2.2. Error Indications
- warn function, producing error messages: 29.2.199. warn
- writing to httpd or other CGI errors logs: 32.1.9. World Wide Web
- ESC character: 2.6.2. String Literals
- ESC in octal: 2.6.2. String Literals
- escape sequences for control characters: 2.6.2. String Literals
- /etc/group file: 24.2.1. Time Efficiency
- 29.2.44. getgrent
- /etc/hosts file: 29.2.49. gethostent
- /etc/networks file: 29.2.53. getnetent
- /etc/passwd file: 24.2.1. Time Efficiency
- 29.2.61. getpwent
- /etc/protocols file: 29.2.60. getprotoent
- /etc/services file: 29.2.66. getservent
- /etc/utmp file: 29.2.50. getlogin
- eval: 2.5.1. Name Lookups
- 3.1. Terms and List Operators (Leftward)
- 8. References
- 24.2.1. Time Efficiency
- 29.2.32. eval
- die function and: 29.2.25. die
- loops and: 24.2.1. Time Efficiency
- loop controls and: 4.5. Bare Blocks
- packages and: 10. Packages
- translating with variables: 5.2.4. The tr/// Operator (Transliteration)
- restricted (reval): 23.3.1.1. Restricting namespace access
- threads, catching exceptions with: 17.2.1.3. Catching exceptions from join
- $EVAL_ERROR: 28.2. Special Variables in Alphabetical Order
- eval_sv and eval_pv functions: 21.4.4. Evaluating a Perl Statement from C
- intercepting: 28.2. Special Variables in Alphabetical Order
- in detached child threads: 17.2.1.4. The detach method
- die function and: 29.2.25. die
- functions raising: 29.2. Perl Functions in Alphabetical Order
- insecure data: 23.1. Handling Insecure Data
- modules for: 32.1.15. Warnings and Exceptions
- raising on failure: 32.1.13. Perl Language Extensions and Internals
- raising to indicate subroutine errors: 6.2.2. Error Indications
- threads, catching: 17.2.1.3. Catching exceptions from join
- trapping: 29.2.32. eval
- $EXCEPTIONS_BEING_CAUGHT: 28.2. Special Variables in Alphabetical Order
- exclusive file locks: 16.2.1. File Locking
- obtaining: 16.2.1. File Locking
- exclusive or (xor) operator: 3.13. Bitwise Operators
- 3.20. Logical and, or, not, and xor
- exec function: 29.2.33. exec
- filehandles, leaving open across calls: 16.2.2. Passing Filehandles
- list argument form, avoiding shell with: 23.3.2. Code Masquerading as Data
- portability of: 25.5. Interprocess Communication (IPC)
- executable image file: 18.1. The Life Cycle of a Perl Program
- $EXECUTABLE_NAME: 28.2. Special Variables in Alphabetical Order
- executing
- code: 18.3. Executing Your Code
- code, conditionally: 1.5.5. Logical Operators
- methods: 12.3. Method Invocation
- other programs from Perl: 29.2.174. system
- Perl program: 1.3.1. How to Do It
- Perl programs: 19.1. Command Processing
- execution
- code, order of: 18.7. Avant-Garde Compiler, Retro Interpreter
- Perl programs: 18.1. The Life Cycle of a Perl Program
- unattended, debugger: 20.4. Unattended Execution
- execv function (in C): 29.2.33. exec
- execvp function (in C): 29.2.33. exec
- existence of a process: 16.1.1. Signaling Process Groups
- exists function: 29.2.34. exists
- invoking on hash: 14.3.1. Hash-Tying Methods
- exit function: 29.2.35. exit
- 29.2.40. fork
- threads and: 17.2.1.2. Thread destruction
- exit status: 28.2. Special Variables in Alphabetical Order
- exiting
- debugger: 20.3.3. Debugger Options
- if or unless blocks: 4.5. Bare Blocks
- infinite loop: 4.4.2. for Loops
- once-through blocks: 4.5. Bare Blocks
- programs: 1.1. Getting Started
- Perl debugger: 20.2.7. Miscellaneous Commands
- exp function: 29.2.36. exp
- expansion, filename: 29.2.69. glob
- Expect module: 16.3.3. Bidirectional Communication
- 22.1. The CPAN modules Directory
- explicit method invocations: 12.3. Method Invocation
- exponential notation: 2.6.1. Numeric Literals
- exponentiation (**) operator: 3.4. Exponentiation
- exponentiation of integers: 21.4.5. Fiddling with the Perl Stack from C
- Exporter module: 32.1.17. Module Installation Support
- 21.3.2. Creating Extensions
- module privacy and: 11.2.1. Module Privacy and the Exporter
- export_fail method: 11.2.1.3. Managing unknown symbols
- exporting: 11. Modules
- exporting symbols: 11.2. Creating Modules
- 11.2.1. Module Privacy and the Exporter
- without using import method from Exporter: 11.2.1.1. Exporting without using Exporter's import method
- export_to_level method: 11.2.1.1. Exporting without using Exporter's import method
- EXPR and LIST: 4.2. Compound Statements
- loops, separating with commas (,): 4.4.2. for Loops
- multiple, in loops: 4.4.2. for Loops
- Perl, supplying in replacement strings: 5.10.3. Programmatic Patterns
- EXPRs: 4.2. Compound Statements
- goto operator, use with: 4.6. goto
- $EXTENDED_OS_ERROR: 28.2. Special Variables in Alphabetical Order
- extending arrays: 2.8.2. Array Length
- extending Perl: 21.3. Extending Perl (Using C from Perl)
- extensions, creating: 21.3.2. Creating Extensions
- 32.1.13. Perl Language Extensions and Internals
- using functions from external C libraby: 21.3.4. Using Functions from an External C Library
- XSUB input and output: 21.3.3. XSUB Input and Output
- XSUBs and XS language, wrapping Perl in: 21.3.1. XS and XSUBs
- external subroutines,
portability of: 25.6. External Subroutines (XS)
- extracting substrings: 29.2.168. substr
- ExtUtils::Command module: 32.1.17. Module Installation Support
- ExtUtils::Embed module: 21.4.1. Compiling Embedded Programs
- 32.1.17. Module Installation Support
- ExtUtils::Install module: 32.1.17. Module Installation Support
- ExtUtils::Installed module: 32.1.17. Module Installation Support
- ExtUtils::Liblist module: 32.1.17. Module Installation Support
- ExtUtils::MakeMaker: 22.3. Creating CPAN Modules
- 22.3. Creating CPAN Modules
- (see also MakeMaker)
- ExtUtils::MakeMaker module: 32.1.17. Module Installation Support
- ExtUtils::Manifest module: 32.1.17. Module Installation Support
- ExtUtils::Mkbootstrap module: 32.1.17. Module Installation Support
- ExtUtils::Mksymlists module: 32.1.17. Module Installation Support
- ExtUtils::MM_Cygwin module: 32.1.17. Module Installation Support
- ExtUtils::MM_OS2 module: 32.1.17. Module Installation Support
- ExtUtils::MM_Unix module: 32.1.17. Module Installation Support
- ExtUtils::MM_VMS module: 32.1.17. Module Installation Support
- ExtUtils::MM_Win32 module: 32.1.17. Module Installation Support
- ExtUtils::Packlist module: 32.1.17. Module Installation Support
- ExtUtils::testlib module: 32.1.17. Module Installation Support
Symbols
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