Index
Symbols
- ! (negation operator), The unless Control Structure
- # (pound sign), What’s Inside That Program?, Adding Whitespace with /x
- #! (shebang) line, What’s Inside That Program?
- $ (dollar sign), A Simple Program, Scalar Variables, Interpolation of Scalar Variables into Strings
- $! special variable, Fatal Errors with die, File Test Operators, Changing the Directory
- $" special variable, Output to Standard Output
- $$ special variable, Using Backquotes to Capture Output
- $' special variable, The Automatic Match Variables
- $= special variable, Subroutine Signatures
- $? special variable, Processes as Filehandles
- $@ special variable, More Advanced Error Handling
- $HOME shell variable, The system Function
- $_ special variable, Perl’s Favorite Default: $_, Sequences, Beginning and End-of-Line Anchors
- $` special variable, The Automatic Match Variables
- $| special variable, Changing the Default Output Filehandle
- % (modulus operator), Numeric Operators
- % (percent sign), Formatted Output with printf-Arrays and printf, The Hash as a Whole
- & (ampersand), Subroutines, Omitting the Ampersand-Omitting the Ampersand
- & (bitwise-and operator), Bitwise Operators
- && (logical AND operator), Logical Operators
- ' (apostrophe), Hash Element Interpolation
- ' (single quote), Single-Quoted String Literals
- () parentheses
- capture groups, Grouping in Patterns-Grouping in Patterns
- match variables and, The Match Variables-The Automatic Match Variables
- noncapturing, Noncapturing Parentheses, The split Operator
- order of precedence, Operator Precedence ...
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