reading the section no constants:
Constants with a leading 0 are interpreted as octal numbers. A
leading
0x or 0X denotes hexadecimal. Otherwise, numbers take
the form
[base#]n, where base is a decimal number between 2 and 64
representing
the arithmetic base, and n is a number in that base. If base# is
omit-
ted, then base 10 is used. The digits greater than 9 are
represented
by the lowercase letters, the uppercase letters, @, and _,
in that
order. If base is less than or equal to 36, lowercase and
uppercase
letters may be used interchangeably to represent numbers between
10 and
35.
declare -i var
var=0x20; echo $var
32
ok, fine, now lest try decimal, digits > 9 represented by lower case, so
'a' seems like it would be used for base
var=a32 ;echo $var
0
#nope, maybe I have to have a
leading 0...
var=0a32; echo $var
-bash: 0a32: value too great for base (error token is "0a32")
#nope, maybe he mean for me to
actually use # after
the base...?
var=a#32; echo $var
-bash: a#32: syntax error: invalid arithmetic operator (error token is
"#32")
#nep!... Geez, Um, just exactly
HOW should one
determine the syntax from the above?
???
thanks (I think? though a few examples would be nice in several
areas...)...
