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POSIX does permit ${10}, ${11}, etc. - https://github.com/koalaman/shellcheck/issues/621

Eliah Kagan
2019-07-30 01:37:21 -04:00
parent 434a724627
commit 454dfb5980
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SC1037.md

@@ -20,8 +20,6 @@ For legacy reasons, `$10` is interpreted as the variable `$1` followed by the li
Curly braces are needed to tell the shell that both digits are part of the parameter expansion.
Please note that accessing any positional parameters beyond `$9` using `${num}` is non-POSIX.
### Exceptions
If you wanted the trailing digits to be literal, `${1}0` will make this clear to both humans and shellcheck.