On Sunday, May 26, 2019 at 9:40:30 PM UTC+12, J S wrote:
> That zero works in bash is, of course, not mentioned in "man bash".
In the manual, in 3.5.3 Shell Parameter Expansion, it says:
In each of the cases below, word is subject to tilde expansion, parameter expansion, command substitution, and arithmetic expansion.
"0-9" is seen as arithmetic. "1-10" would serve, too.
Regards, John Little
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