Opposite to common belief `$()` is the way to do it by the standard[0]. POSIX sh differs from Bourne shell. [0]: https://pubs.opengroup.org/onlinepubs/96999197

Opposite to common belief `$()` is the way to do it by the standard[0]. POSIX sh differs from Bourne shell. [0]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_03 https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V...