Or some awk: Code: cat /proc/uptime | awk '{printf "%d days, %.2d:%.2d\n",int($1/86400),int($1%86400/3600),int($1%3600/60)}' /P
cat /proc/uptime | awk '{printf "%d days, %.2d:%.2d\n",int($1/86400),int($1%86400/3600),int($1%3600/60)}'
awk '{printf "%d days, %.2d:%.2d\n",int($1/86400),int($1%86400/3600),int($1%3600/60)}' /proc/uptime
awk '{if (int($1/86400)>0){printf "%d days, ",int($1/86400)};printf "%.2d:%.2d\n",int($1%86400/3600),int($1%3600/60)}' /proc/uptime