Date: 2024jun27 Language: bash Q. Linux: bash script to get number of hours a machine has been up A. Rather than parsing the output of the `uptime` command we get the info from /proc/uptime. Its in seconds. So get hours we divide by 3600 (the number of seconds in an hour).

#!/bin/sh # /proc/uptime gives something like 1234.45 12345.67 # We truncate at the first decimal to get the integer number of up seconds seconds=$(sed -e 's/\..*//' < /proc/uptime) hours=$(( seconds / 3600 )) echo hours=$hours