Arrays in awk

An array is a table of values, called elements. The elements of an array are distinguished by their indices. Indices may be either numbers or strings. awk maintains a single set of names that may be used for naming variables, arrays and functions (see section User-defined Functions). Thus, you cannot have a variable and an array with the same name in the same awk program.

• Array Intro: Introduction to Arrays
• Reference to Elements: How to examine one element of an array.
• Assigning Elements: How to change an element of an array.
• Array Example: Basic Example of an Array
• Scanning an Array: A variation of the for statement. It loops through the indices of an array's existing elements.
• Delete: The delete statement removes an element from an array.
• Numeric Array Subscripts: How to use numbers as subscripts in awk.
• Uninitialized Subscripts: Using Uninitialized variables as subscripts.
• Multi-dimensional: Emulating multi-dimensional arrays in awk.
• Multi-scanning: Scanning multi-dimensional arrays.

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