#! /bin/bash 

upt="$(uptime --pretty | sed -e 's/up //g' -e 's/ days/d/g' -e 's/ day/d/g' -e 's/ hours/h/g' -e 's/ hour/h/g' -e 's/ minutes/m/g' -e 's/, / /g')"
echo -e "$upt "