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Index: S

• operator
• • example of
  • • The Final Programs
    • Globbing
  • making basename of file and : File and Directory Manipulation
  • substitute operator : Substitutions
• -s operator : The -x File Tests
• option, tr( ) : Transliteration
• s, in regular expressions : Single-Character Patterns
• scalar assignment, used as a value : Scalar Operators and Functions
• scalar context
• • Assignment
  • Scalar and List Context
  • readdir( ) : Reading a Directory Handle
• scalar data : What Is Scalar Data?
• scalar values, assigned to array variables : Assignment
• scalar variables
• • Asking Questions and Remembering the Result
  • Scalar Variables
  • operators for : Scalar Operators and Functions
• scientific notation, in floating-point numbers : Float Literals
• Scooby Doo, pronouncing "Windex" : Finding a Substring
• secret words, guessing : Guessing the Secret Word
• security : Security Matters
• seek( ) : Fixed-Length Random-Access Databases
• select( ) : Using select to Change the Filehandle
• • return value of : Using select to Change the Filehandle
• Semaphore module : Win32 Extensions
• semicolon (;), as statement terminator : The "Hello, world" Program
• sequence, in regular expressions : Sequence
• Service module : Win32 Extensions
• SetCwd module : Win32 Extensions
• SetFileAttributes method : Modifying Permissions
• setting Registry values : Setting Registry Values
• SetValue( ) : Setting Registry Values
• SetValueEx( ) : Setting Registry Values
• shebang line : Basic Concepts
• shell, avoiding for new processes : Using system and exec
• shift( ) : The shift and unshift Functions
• ShortCut module : Win32 Extensions
• single-quoted strings : Single-Quoted Strings
• skiing : Stroll Through Perl
• slash : Using Pathnames and Filenames
• slices
• • of array : Array Element Access
  • on literal lists : Array Element Access
  • variable interpolation in strings : Variable Interpolation of Arrays
• Socket module : Networking Clients
• sockets : Networking Clients
• sort( )
• • Maintaining a Last-Good-Guess Database
  • The sort Function
  • controlling sort order of : Advanced Sorting
  • example of
  • • Directory Access
    • Other Data Transformation
  • example of : Directory Access
• sort comparison routines : Advanced Sorting
• • using array lookups : Advanced Sorting
• sorting
• • advanced : Advanced Sorting
  • example of numeric : Advanced Sorting
• Sound module : Win32 Extensions
• space
• • between array values when interpolated : Variable Interpolation of Arrays
  • in regular expressions : Single-Character Patterns
• spaceship (<=>) operator : Advanced Sorting
• • example of : Database Manipulation
• Spawn module : Win32 Extensions
• split( ) : The split Function
• • example of : Invoking a Format
• spotted owls : Removing a File
• sprintf( ) : Formatting Data with sprintf( )
• • compared with pack( ) : Packing and Unpacking Binary Data
  • example of : Numeric Fields
• Sprite : Double-Quoted Strings
• square brackets ([ ]), in regular expressions : Single-Character Patterns
• standard distribution, Perl : Standard Perl Distribution
• standard error of command in backquotes : Using Backquotes
• standard input
• • example of using : <STDIN> as a Scalar Value
  • of command in backquotes : Using Backquotes
  • reading from : Input from STDIN
• Standard Modules : Standard Modules
• standard output
• • example of using : Output with print
• stat( ) : The stat Function
• statement block
• • (see also blocks)
  • Adding Choices
  • Statement Blocks
• STDERR
• • Moving the Secret Word List into a Separate File
  • What Is a Filehandle?
• STDIN
• • Asking Questions and Remembering the Result
  • Moving the Secret Word List into a Separate File
  • Input from STDIN
  • What Is a Filehandle?
  • in array context : <STDIN> as an Array
  • • example of : Basic I/O
  • example of
  • • The Final Programs
    • Input from STDIN
    • The last Statement
  • as scalar value : <STDIN> as a Scalar Value
  • as target of a match : Selecting a Different Target (the =~ Operator)
  • undef return value and : The Undefined Value
• STDOUT
• • Moving the Secret Word List into a Separate File
  • What Is a Filehandle?
• string concatenation : Operators for Strings
• string operators : Operators for Strings
• strings
• • What Is Scalar Data?
  • Strings
  • automatic conversion to numbers : Conversion Between Numbers and Strings
  • counting characters in : Transliteration
  • deleting characters from : Transliteration
  • length of : Strings
  • literal representation of : Strings
  • pathnames in : Double-Quoted Strings
  • removing last character : The chop( ) and chomp( ) Functions
• sub keyword
• • Making It a Bit More Modular
  • Defining a User Function
  • example of
  • • Functions
    • The Final Programs
• subkeys : (see keys, registry)
• subroutine definitions
• • example of : Functions
  • location of in file : Making It a Bit More Modular
  • location of in text : Defining a User Function
  • re-defining : Defining a User Function
• subroutines
• • Making It a Bit More Modular
  • Defining a User Function
  • arguments : Arguments
  • invoking : Invoking a User Function
  • lack of locals : Defining a User Function
  • nested invocation of : Invoking a User Function
  • return values of : Return Values
  • scope of variables : Defining a User Function
• subscript reference, introduced : More than One Secret Word
• subscripts
• • array expressions : Array Element Access
  • with array elements : Array Element Access
• substitute operator
• • Making It Fair for the Rest
  • Simple Uses of Regular Expressions
  • Substitutions
• substr( ) : Extracting and Replacing a Substring
• • example of : Other Data Transformation
  • variable as first argument : Extracting and Replacing a Substring
• substrings, finding : Finding a Substring
• subtraction, operator for : Operators for Numbers
• subtrees, Registry : The Registry Structure
• symlink( ) : File and Directory Manipulation
• system( ) : Using system and exec
• • list of arguments to : Using system and exec
  • PATH : Using system and exec

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