# Find process and filter.
# Usage: ps [PROCESS]
function ps() {
	local process="${1}"

	if [[ "${process}" = "" ]]; then
		/usr/bin/env ps aux
	else
		/usr/bin/env ps aux | sed -n -e "1p" -e "/${process}/Ip" | sed -e "/sed -n -e 1p -e/d"
	fi
}