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Index: E

-e command-line option, and inplace editing : 17.5. Variable-Length ( Text) Databases

-e operator : 10.5. The -x File Tests

e option to substitute operator : D.5.2. The eval Operator (and s///e)

each( ) operator : 5.4.3. The each Function

examples of

A.16. Chapter 17, User Database Manipulation

17.3. Using a DBM Hash

echo command, and globbing : 12.2. Globbing

editors, and updating databases : 17.5. Variable-Length ( Text) Databases

elements of array : 3.1. What Is a List or Array?

else keyword : 4.2. The if/unless Statement

elsif keyword

1.5.5. More than One Secret Word

4.2. The if/unless Statement

example of

A.3. Chapter 4, Control Structures

15.4. Advanced Sorting

email, example of handling : 9.1. The last Statement

embedded Perl : 19.10.2. Embedded Perl

empty array : 3.2. Literal Representation

empty list : 3.2. Literal Representation

and clearing out associative array : 5.4.2. The values Function

as default value for array variable : 3.3. Variables

as return value from getpwent( ) : 16.1. Getting Password and Group Information

end of file

Control-D as : 3.6. <STDIN> as an Array

detecting, introduced : 1.5.10. Moving the Secret Word List into a Separate File

end tokens : 19.3. Simplest CGI Program

endgrent( ) operator : 16.1. Getting Password and Group Information

endpwent( ) operator : 16.1. Getting Password and Group Information

%ENV variable : 14.1. Using system and exec

environment variables, controlling through %ENV : 14.1. Using system and exec

eof( ) (Perl) : 19.8.2. Objects in CGI.pm

eq operator : 2.4.2. Operators for Strings

example of

1.5.3. Adding Choices

1.5.17. The Final Programs

equal sign (=)

as array assignment operator : 3.4.1. Assignment

as assignment operator : 2.6. Scalar Operators and Functions

eval( ) operator

D.5.2. The eval Operator (and s///e)

11.1. What Is a Format?

exec( ) operator : 14.4. Using fork

execute bit, and Perl programs : 1.4. Basic Concepts

exit status, and die( ) : 10.3. A Slight Diversion: die

exit value : 14.4. Using fork

exit( ) operator : 14.4. Using fork

exponential notation, in floating-point numbers : 2.2.2. Float Literals

exponentiation operator (**) : 2.4.1. Operators for Numbers

export command, emulating : 14.1. Using system and exec

expressions

in array literals : 3.2. Literal Representation

in subroutine body : 8.3. Return Values

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