Built-in Functions

Built-in functions are functions that are always available for your awk program to call. This chapter defines all the built-in functions in awk; some of them are mentioned in other sections, but they are summarized here for your convenience. (You can also define new functions yourself. See section User-defined Functions.)

• 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 time stamps.

Go to the first, previous, next, last section, table of contents.