Functions (The GNU Awk User’s Guide)
From Get docs
Gawk/docs/latest/Functions
Next: Library Functions, Previous: Arrays, Up: Top [Contents][Index]
9 Functions
This chapter describes awk
’s built-in functions, which fall into three categories: numeric, string, and I/O. gawk
provides additional groups of functions to work with values that represent time, do bit manipulation, sort arrays, provide type information, and internationalize and localize programs.
Besides the built-in functions, awk
has provisions for writing new functions that the rest of a program can use. The second half of this chapter describes these user-defined functions. Finally, we explore indirect function calls, a gawk
-specific extension that lets you determine at runtime what function is to be called.
• Built-in | Summarizes the built-in functions. | |
• User-defined | Describes User-defined functions in detail. | |
• Indirect Calls | Choosing the function to call at runtime. | |
• Functions Summary | Summary of functions. |