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gawk: Typing and Comparison

 
 6.3.2 Variable Typing and Comparison Expressions
 ------------------------------------------------
 
      The Guide is definitive.  Reality is frequently inaccurate.
       -- _Douglas Adams, 'The Hitchhiker's Guide to the Galaxy'_
 
    Unlike in other programming languages, in 'awk' variables do not have
 a fixed type.  Instead, they can be either a number or a string,
 depending upon the value that is assigned to them.  We look now at how
 variables are typed, and how 'awk' compares variables.
 

Menu

 
· Variable Typing             String type versus numeric type.
· Comparison Operators        The comparison operators.
· POSIX String Comparison     String comparison with POSIX rules.
 

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