Hallo,
in playing around with digital keys (integers) which have a simple
arithmetic check property, I encountered problemsusing bash's arithmetic
expansion, when ever the used digital substrings have leading zeros. The
problem shows up already for the simplest operations, namely converting
a string argument to its numerical value, as shown below.
With thanks for your attention and best regards, Jörn Knoll
[tplx99]:/the/knoll > echo $((0123))
83
[tplx99]:/the/knoll > echo $((123))
123
[tplx99]:/the/knoll > echo $((01234))
668
[tplx99]:/the/knoll > echo $((1234))
1234
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