A numeric constant stands for a number. It can be an integer, a decimal fraction, or a number in an exponential notation. Some examples of numeric constant values are as follows:

*100**1.10**1.05e+2**1.05e-1*

Any nonzero numeric value in AWK is true in the case of expression evaluation, and zero is false. For example:

$ vi numeric.awkBEGIN{if ( 1 )print "numeric 1 "if ( 1.234 )print "numeric 1.234"if ( 1.234e )print "numeric 1.234e"if ( 0 )print "false"}$ awk -f numeric.awk

The output of the execution of the preceding code is as follows:

numeric 1numeric 1.234numeric 1.234e