Hi Cédric, Cédric Martínez Campos wrote:
> $ echo $((08+1)) > bash: 08: too big element for the base (the error element is "08") > [translated from spanish] Strings of digits starting with a '0' in an arithmetic expansion are octal numbers. The bash FAQ[*] has some details. Hope that helps, Jonathan [*] http://tiswww.case.edu/php/chet/bash/FAQ question E8 ("Why does the arithmetic evaluation code complain about `08'?")