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Index: I

• -i command option, for inplace editing : Variable-Length ( Text) Databases
• -i flag (ignore case)
• • Ignoring Case
  • Substitutions
• if modifier : Expression Modifiers
• if statement : The if/unless Statement
• • example of
  • • Making It a Bit More Modular
    • The Final Programs
    • The if/unless Statement
    • The keys Function
  • introduced : Adding Choices
  • not counting as looping block : The next Statement
  • unless modifier
  • • Expression Modifiers
    • Slight Diversion: die
• IGNORE value (%SIG) : Sending and Receiving Signals
• ignoring case
• • example of : Handling Varying Input Formats
  • in substitution : Substitutions
  • with i flag : Ignoring Case
• import tags : Less Typing
• indentation, in Perl programs : Basic Concepts
• index( ) operator : Finding a Substring
• • third parameter of : Finding a Substring
• indirect filehandles : Globbing
• infinite loops : The redo Statement
• inplace editing : Variable-Length ( Text) Databases
• int( ) operator : The -x File Tests
• integers
• • All Numbers Use the Same Format Internally
  • Integer Literals
• interpreted language, Perl as a : Basic Concepts
• interprocess communication, with signals : Sending and Receiving Signals
• invoking a format : Invoking a Format
• invoking a subroutine : Invoking a User Function

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