Print a time interval given in seconds in human readable form: 2d 13h 7m 0s

gistfile1.sh

human_time() {
	seconds=$1
	d=$(( $seconds / 86400 ))
	h=$(( $seconds / 3600 % 24 ))
	m=$(( $seconds / 60 % 60 ))
	seconds=$(( $seconds % 60 ))
	for unit in d h m; do
		eval value=\$$unit
		if [ $value -gt 0 ]; then
			printing=true
		fi
		if [ "$printing" ]; then
			echo -n "$value$unit "
		fi
	done
	echo "${seconds}s"
}