A numeric constant stands for a number. This number can be an
integer, a decimal fraction, or a number in scientific (exponential)
notation.(20)
Here are some examples of numeric constants that all
have the same value:
105
1.05e+2
1050e-1
A string constant consists of a sequence of characters enclosed in
double-quotation marks. For example:
"parrot"
represents the string whose contents are `parrot'. Strings in
gawk can be of any length, and they can contain any of the possible
eight-bit ASCII characters including ASCII NUL (character code zero).
Other awk
implementations may have difficulty with some character codes.
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