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The GNU Awk User's Guide

13.3 Data File Management

This section presents functions that are useful for managing command-line data files.

13.3.1 Noting Data File Boundaries		A function for handling data file transitions.
13.3.2 Rereading the Current File		A function for rereading the current file.
13.3.3 Checking for Readable Data Files		Checking that data files are readable.
13.3.4 Treating Assignments as File Names		Treating assignments as file names.