Not fancier, just a bash-ism that may not work with some other shells. [bash] https://www.gnu.org/software/bash/manual/html_node/Command-Substitution.html http

Not fancier, just a bash-ism that may not work with some other shells. [bash] https://www.gnu.org/software/bash/manual/html_node/Command-Substitution.html https://www.gnu.org/software/bash/manual/html_node/Command-S... [posix] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_03 http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3...