wurm-skill-rate.sh

#!/bin/bash
#$watch -n 1 -t sh ./wurm-skill-rate.sh

#SKILL NAME
skill="Shield smithing"
#PLAYER NAME
pnam="kaelygon"

#How many skill updates is wanted to be averaged?
suavg=10
#Decimal places (flored)
precis=4

#---------

#Wurm logs path
logs=~/".wurm/players/${pnam}/logs"
#Newest _Skills.*txt
file=$( ls -t "${logs}/_Skills"*txt | head -n1 )

#Find latest session
lastlog=$(grep "Logging started" "${file}" | tail -n1)

#sed print only after current session | grep only wanted skill | take last $suavg skill updates
olog="$( sed -n "/$lastlog/,\$p" "${file}" | grep -i "] $skill i" | tail -n $((${suavg}+1)))"

if [ -z "$olog" ]; then
    echo "No skill updates found for $skill"
fi

#Count new lines for valid found skill updates count
sucnt=$(($(echo "${olog}" | wc -l)-1))


#Get last word (level) of first and last skill updates
stlvl="$(echo "${olog}" | head -n1 | grep -oE '[^ ]+$')"
ndlvl="$(echo "${olog}" | tail -n1 | grep -oE '[^ ]+$')"

#Skill gain delta
gain=$(bc -l <<< "$ndlvl - $stlvl")


#Get first word (time) of first and last time stamps
sttime="$(echo "${olog}" | head -n1 | cut -d ' ' -f1)"
#ndtime="$(echo "${olog}" | tail -n1 | cut -d ' ' -f1)"

#Time stamps to seconds ; exclude [ and ]
sttime="$(echo "${sttime}" | sed 's/\[//;s/\]//' | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }')"
#ndtime="$(echo "${ndtime}" | sed 's/\[//;s/\]//' | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }')"
ndtime=" $( date +%T | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }' ) "

#if skill updates happened past midnight, add 24hr to ndtime for correct time delta
ndtime=$( bc -l <<< "$ndtime + ($ndtime < $sttime)*24*60*60" )

#Time delta
tdelta=$( bc -l <<< "$ndtime - $sttime" )

#Skill gain rate
sgrate=$( printf "%.${precis}f" $(bc -l <<< "$gain*3600/$tdelta") )


#DEBUGS
#echo "file $file"
#echo "$lastlog"
#echo "gain $stlvl-$ndlvl=$gain"
#echo "tdelta $ndtime-$sttime=$tdelta"
#echo "sgrate $sgrate"

echo "(${sucnt}SU ${tdelta}s) ${skill} avg ${sgrate} LvL/Hr"
#sweet spot
echo SS $(printf "%.${precis}f" $(bc -l <<< "$ndlvl*0.77+23") )