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Index: S

s

as squeeze option of tr : 15.5. Transliteration
as substitute operator : 7.5. Substitutions

\s, in regular expressions : 7.3.1. Single-Character Patterns

s operator

and making basename of file : A.12. Chapter 13, File and Directory Manipulation

example of

1.5.17. The Final Programs
12.2. Globbing

making basename of file : A.12. Chapter 13, File and Directory Manipulation

-s operator : 10.5. The -x File Tests

-S operator : 10.5. The -x File Tests

s2p (sed-to-Perl) conversion utility : 18.2. Converting sed Programs to Perl

save( ) : 19.8.2. Objects in CGI.pm

scalar assignment, used as a value : 2.6. Scalar Operators and Functions

scalar context : 3.5. Scalar and List Context

introduced : 3.4.1. Assignment
readdir( ) and : 12.5. Reading a Directory Handle

scalar data

2.1. What Is Scalar Data?
3.4.1. Assignment

scalar variables

1.5.2. Asking Questions and Remembering the Result
2.5. Scalar Variables
operators for : 2.6. Scalar Operators and Functions

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

Scooby Doo, pronouncing "Windex" : 15.1. Finding a Substring

scrolling_list( ) : 19.7.2. Fancier Calling Sequences

secret words, guessing : 1.5.4. Guessing the Secret Word

sed command, substitute operator and : 7.2. Simple Uses of Regular Expressions

sed scripts, converting to Perl : 18.2. Converting sed Programs to Perl

seek( ) operator

17.4. Fixed-Length Random Access Databases
19.8.2. Objects in CGI.pm

select( ) operator : 11.6.1. Using select( ) to Change the Filehandle

sending signals : 14.6. Sending and Receiving Signals

sendmail aliases database : 17.1. DBM Databases and DBM Hashes

sequence, in regular expressions : 7.3.2.1. Sequence

sequential access, to password file : 16.1. Getting Password and Group Information

servers, CGI programs and : 19.2. Your CGI Program in Context

setenv command, emulating : 14.1. Using system and exec

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

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

shell scripts : 1.4. Basic Concepts

converting to Perl (ha!) : 18.3. Converting Shell Programs to Perl

shells, avoiding for new processes : 14.1. Using system and exec

shift( ) operator : 3.4.4. The shift and unshift Functions

default of @ARGV and : A.12. Chapter 13, File and Directory Manipulation
example of : A.12. Chapter 13, File and Directory Manipulation

:shortcuts import tag : 19.5. Less Typing

%SIG variable : 14.6. Sending and Receiving Signals

SIGINT (signal name) : 14.6. Sending and Receiving Signals

signals : 14.6. Sending and Receiving Signals

catching : 14.6. Sending and Receiving Signals
ignoring : 14.6. Sending and Receiving Signals
restoring default action of : 14.6. Sending and Receiving Signals
sending : 14.6. Sending and Receiving Signals

Simple module : 19.10.3. Web Automation with LWP

single-quoted strings : 2.3.1. Single-Quoted Strings

skiing : 1.5. A Stroll Through Perl

slices

array : 3.4.2. Array Element Access
on literal lists : 3.4.2. Array Element Access
variable interpolation in strings and : 3.7. Variable Interpolation of Arrays

sort comparison routines : 15.4. Advanced Sorting

using array lookups : 15.4. Advanced Sorting

sort( ) operator

1.5.16. Maintaining a Last-Good-Guess Database

3.4.6. The sort Function

controlling sort order of : 15.4. Advanced Sorting

example of

A.11. Chapter 12, Directory Access
A.14. Chapter 15, Other Data Transformation
A.15. Chapter 16, System Database Access
16.1. Getting Password and Group Information

sorting

advanced : 15.4. Advanced Sorting
example of numeric : 15.4. Advanced Sorting

space : (see whitespace)

spaceship (<=>) operator : 15.4. Advanced Sorting

example of : A.16. Chapter 17, User Database Manipulation

split( ) operator : 7.6.1. The split Function

example of

A.10. Chapter 11, Formats
A.13. Chapter 14, Process Management
11.3. Invoking a Format

sprintf( ) operator : 15.3. Formatting Data with sprintf( )

compared with pack( ) : 16.2. Packing and Unpacking Binary Data
example of : 11.4.2. Numeric Fields

Sprite : 2.3.2. Double-Quoted Strings

square brackets ([ ]), in regular expressions : 7.3.1. Single-Character Patterns

srand( ) operator, example of : 3.8. Exercises

:standard import tag : 19.5. Less Typing

standard error

of command in backquotes : 14.2. Using Backquotes
merging with standard output, in backquotes : 14.2. Using Backquotes
processes open for writing and : 14.3. Using Processes as Filehandles

standard input : (see STDIN)

standard output : (see STDOUT)

stat( ) operator : 10.6. The stat and lstat Functions

statement block

(see also blocks)
1.5.3. Adding Choices
4.1. Statement Blocks

STDERR : 10.1. What Is a Filehandle?

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

STDIN

1.5.2. Asking Questions and Remembering the Result

1.5.10. Moving the Secret Word List into a Separate File

6.1. Input from STDIN

10.1. What Is a Filehandle?

in array context

A.5. Chapter 6, Basic I/O
3.6. <STDIN> as an Array

of command in backquotes : 14.2. Using Backquotes

example of

1.5.17. The Final Programs
6.1. Input from STDIN
9.1. The last Statement

example of using : 2.7. <STDIN> as a Scalar Value

reading from : 6.1. Input from STDIN

as scalar value : 2.7. <STDIN> as a Scalar Value

as target of match : 7.4.1. Selecting a Different Target (the =~ Operator)

undef return value and : 2.9. The Undefined Value

STDOUT

1.5.10. Moving the Secret Word List into a Separate File
10.1. What Is a Filehandle?
example of using : 2.8. Output with print
processes open for writing and : 14.3. Using Processes as Filehandles

Stein, Lincoln : 19.1. The CGI.pm Module

string comparison operators : 2.4.2. Operators for Strings

string concatenation : 2.4.2. Operators for Strings

string operators : 2.4.2. Operators for Strings

string repetition operator : 2.4.2. Operators for Strings

strings

2.1. What Is Scalar Data?
2.3. Strings
automatic conversion to numbers and : 2.4.4. Conversion Between Numbers and Strings
counting characters in : 15.5. Transliteration
deleting characters from : 15.5. Transliteration
length of : 2.3. Strings
literal representation of : 2.3. Strings
query strings : 19.2. Your CGI Program in Context
removing last character : 2.6.3. The chop and chomp Functions

sub keyword

1.5.9. Making It a Bit More Modular

8.1. Defining a User Function

example of

A.7. Chapter 8, Functions
1.5.17. The Final Programs

submit button : 19.6. Form Generation

subroutine definitions

example of : A.7. Chapter 8, Functions
location of in file : 1.5.9. Making It a Bit More Modular
location of in text : 8.1. Defining a User Function
re-defining : 8.1. Defining a User Function

subroutines

1.5.9. Making It a Bit More Modular
8.1. Defining a User Function
arguments : 8.4. Arguments
invoking : 8.2. Invoking a User Function
lack of locals : 8.1. Defining a User Function
nested invocation of : 8.2. Invoking a User Function
return values of : 8.3. Return Values
scope of variables and : 8.1. Defining a User Function

subscripts

with array elements : 3.4.2. Array Element Access
array expressions and : 3.4.2. Array Element Access
references : 1.5.5. More than One Secret Word

substitute operator

1.5.8. Making It Fair for the Rest
7.2. Simple Uses of Regular Expressions
7.5. Substitutions

substr( ) operator : 15.2. Extracting and Replacing a Substring

example of : A.14. Chapter 15, Other Data Transformation
variable as first argument : 15.2. Extracting and Replacing a Substring

substrings, finding : 15.1. Finding a Substring

subtraction, operator for : 2.4.1. Operators for Numbers

support for Perl : Support

symbolic links : (see symlinks)

symlink( ) operator : 13.3.2. Creating Hard and Soft Links with Perl

compilation failure and : 13.3.2. Creating Hard and Soft Links with Perl
example of : A.12. Chapter 13, File and Directory Manipulation

symlinks : 13.3. Creating Alternate Names for a File: Linking

nested : 13.3.1. About Hard and Soft Links
operation of : 13.3.1. About Hard and Soft Links
referencing non-existing files : 13.3.1. About Hard and Soft Links

sysopen( ) : 19.8.2. Objects in CGI.pm

system( ) operator : 14.1. Using system and exec

composed of fork and exec : 14.4. Using fork
example of : A.13. Chapter 14, Process Management
list of arguments to : 14.1. Using system and exec
PATH and : 14.1. Using system and exec

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