9.1 Built-in Functions

Built-in functions are always available for your awk program to call. This section defines all the built-in functions in awk; some of these are mentioned in other sections but are summarized here for your convenience.

9.1.1 Calling Built-in Functions		How to call built-in functions.
9.1.2 Numeric Functions		Functions that work with numbers, including

                                int, sin and rand.

9.1.3 String Manipulation Functions

Functions for string manipulation, such as

                                split, match and sprintf.

9.1.4 Input/Output Functions		Functions for files and shell commands.
9.1.5 Using gawk's Timestamp Functions		Functions for dealing with timestamps.
9.1.6 Using gawk's Bit Manipulation Functions		Functions for bitwise operations.
9.1.7 Using gawk's String Translation Functions		Functions for string translation.