Gawk/Built 002din

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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.

• Calling Built-in		How to call built-in functions.
• Numeric Functions		Functions that work with numbers, including int(), sin() and rand().
• String Functions		Functions for string manipulation, such as split(), match() and sprintf().
• I/O Functions		Functions for files and shell commands.
• Time Functions		Functions for dealing with timestamps.
• Bitwise Functions		Functions for bitwise operations.
• Type Functions		Functions for type information.
• I18N Functions		Functions for string translation.