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Built-in Functions

   "Built-in" functions are always available for your `awk' program to
call.  This minor node 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.
I18N Functions
Functions for string translation.

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