# $FreeBSD: releng/12.1/bin/sh/tests/parameters/positional9.0 291903 2015-12-06 14:09:31Z jilles $ # Although POSIX leaves the result of expanding ${#@} and ${#*} unspecified, # make sure it is at least numeric. set -- bb cc ddd set -f lengths=${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}") IFS= lengths=$lengths${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}") case $lengths in *[!0-9]*) printf 'bad: %s\n' "$lengths" exit 3 ;; ????????????????*) ;; *) printf 'too short: %s\n' "$lengths" exit 3 ;; esac