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#!/usr/bin/env bash
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ft_seconds=$(cat /proc/uptime | awk '{print $1}' | xargs printf '%d' 2>/dev/null) # floored int total
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ft_minutes=$(($ft_seconds/60))
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ft_hours=$(($ft_minutes/60))
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echo $ft_hours $ft_minutes $ft_seconds
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if [[ $ft_hours -gt 0 ]] ; then
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# display with leading hours
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rem_mins=$(($ft_minutes % 60)) # get remaining mins
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printf '%dH %dM' $ft_hours $rem_mins
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else
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# display with leading minutes
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rem_secs=$(($ft_seconds % 60)) # get remaining mins
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printf '%dM %dS' $ft_minutes $rem_secs
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fi
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