(gawk) Built-in Variables

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 Built-in Variables
 ******************
 
    Most `awk' variables are available for you to use for your own
 purposes; they never change except when your program assigns values to
 them, and never affect anything except when your program examines them.
 However, a few variables in `awk' have special built-in meanings.  Some
 of them `awk' examines automatically, so that they enable you to tell
 `awk' how to do certain things.  Others are set automatically by `awk',
 so that they carry information from the internal workings of `awk' to
 your program.
 
    This chapter documents all the built-in variables of `gawk'.  Most
 of them are also documented in the chapters describing their areas of
 activity.
 

Menu

 
* User-modified               Built-in variables that you change to control
                                 `awk'.
* Auto-set                    Built-in variables where `awk' gives you
                                 information.
* ARGC and ARGV               Ways to use `ARGC' and `ARGV'.
 

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