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 | Explanatory note

E

-e file test operator : Named Unary and File Test Operators
/e modifier : Pattern-Matching Operators
-e switch, perl : Switches
each function each Tying Hashes
editor support for debugger : Editor Support for Debugging
effective gid (see $) variable)
effective uid (see $<; variable)
$EFFECTIVE_GROUP_ID (see $) variable)
$EFFECTIVE_USER_ID (see $>; variable)
efficiency (see performance)
$EGID (see $) variable)
else statement (see if statements)
elsif statement (see if statements)
Emacs, debugger and : Editor Support for Debugging
enablecache() routine : Benchmark--Check and Compare Running Times of Code
encapsulation : Using Object Methods
encryption crypt Penguin
end of file : eof
END subrountine : Package Constructors and Destructors: BEGIN and END
_ _END_ _ token Other literal tokens Global Special Filehandles
endgrent function : getgrent
endhostent function : gethostent
ending (see terminating)
endless loop (see infinite loops)
endprotoent function : getprotoent
endpwent function : getpwent
endservent function : getservent
English module vars--Predeclare Global Variable Names Awk Traps
%ENV hash : Global Special Arrays deleting from : delete
Env module : Env--Import Environment Variables
environment variables : Global Special Arrays importing : Env--Import Environment Variables PERL5DB : Debugger Customization PERL_DESTRUCT_LEVEL : A Note on Garbage Collection PWD : Cwd--Get Pathname of Current Working Directory
eof function eof Time Efficiency
eq operator : Universal Blunders
equal sign (see =)
equal to (= ) operator : Equality Operators
equality operators : Equality Operators
erasing (see deleting)
$ERRNO (see $! variable)
error messages Carp--Generate Error Messages User Efficiency Programming with Style Diagnostic Messages
errors : Diagnostic Messages handling permissions for processes : IPC::Open3--Open a Process for Reading, Writing, and Error Handling $@ variable for : Global Special Variables $! variable for : Global Special Variables $? variable for : Global Special Variables
escape sequences for control characters : String literals
/etc/group file getgrent Time Efficiency
/etc/hosts file : gethostent
/etc/networks file : getnetent
/etc/passwd file getpwent Time Efficiency
/etc/services file : getservent
/etc/utmp file : getlogin
$EUID (see $>; variable)
eval function eval References and Nested Data Structures Time Efficiency die function and : die loops and : Time Efficiency translating with variables : Pattern-Matching Operators
$EVAL_ERROR (see $@ variable)
examples, Perl : Examples
exceptions, die function for : die
exclamation point (see !)
exclusive OR operator Bitwise Operators Logical and, or, not, and xor Awk Traps
exec function : exec
$EXECUTABLE_NAME (see $^X variable)
executing methods : Method Invocation other programs from Perl : system Perl program How to Do It Cooperating with Command Interpreters
execv function (in C) : exec
execvp function (in C) : exec
exists function exists Tying Hashes
EXISTS method : Tying Hashes
exit function exit fork
exit statement (awk) : a2p
exiting diagnostics module : diagnostics--Force Verbose Warning Diagnostics infinite loop : For loops
exp function : exp
expansion, filename : glob
exponentiation (**) operator

Exponentiation
Awk Traps
Exporter module : Exporter--Default Import Method for Modules
expr command (debugger) : Debugger Commands
extending arrays : List Values and Arrays
extensions, Perl installing : ExtUtils::Install--Install Files from Here to There Makefiles for : ExtUtils::MakeMaker--Create a Makefile for a Perl Extension
extracting substrings : substr
ExtUtils: :Install module : ExtUtils::Install--Install Files from Here to There
ExtUtils: :Liblist module : ExtUtils::Liblist--Determine Libraries to Use and How to Use Them
ExtUtils: :MakeMaker module : ExtUtils::MakeMaker--Create a Makefile for a Perl Extension
ExtUtils: :Manifest module : ExtUtils::Manifest--Utilities to Write and Check a MANIFEST File
ExtUtils: :Miniperl module : ExtUtils::Miniperl--Write the C Code for perlmain.c
ExtUtils: :Mkbootstrap module : ExtUtils::Mkbootstrap--Make a Bootstrap File for Use by DynaLoader
ExtUtils: :Mksymlists module : ExtUtils::Mksymlists--Write Linker Option Files for Dynamic Extension
ExtUtils: :MM_OS2 module : ExtUtils::MM_OS2--Methods to Override UNIX Behavior in ExtUtils::MakeMaker
ExtUtils: :MM_Unix module : ExtUtils::MM_Unix--Methods Used by ExtUtils::MakeMaker
ExtUtils: :MM_VMS module : ExtUtils::MM_VMS--Methods to Override UNIX Behavior in ExtUtils::MakeMaker 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 Explanatory note Copyright © 1997 O'Reilly & Associates, Inc. All Rights Reserved.