2021-12-11 15:02:56 +01:00
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#!/bin/bash
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2022-10-07 00:24:37 +02:00
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# Configuration variables
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memfile="/proc/meminfo"
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size="G" # Change to M for MiB
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# Variables
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memTotal=$(cat ${memfile} | grep -i "memtotal:" | head -1 | tr -s " " | cut -d " " -f 2)
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memActive=$(cat ${memfile} | grep -i "memavailable:" | head -1 | tr -s " " | cut -d " " -f 2)
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memActive=$(expr ${memTotal} - ${memActive})
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# Variables to calculate
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memTotalM=$(expr ${memTotal} / 1024 )
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memActiveM=$(expr ${memActive} / 1024)
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if [ -f /usr/bin/calc ] ; then
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memPercentage=$(calc ${memActive} / ${memTotal} \* 100)
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memTotalG=$(calc ${memTotalM} / 1024 | tr -s " " | cut -c1-5)
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memActiveG=$(calc ${memActiveM} / 1024 | tr -s " " | cut -c1-5)
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else
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memPercentage=$(expr ${memActive} / ${memTotal} \* 100)
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memTotalG=$(expr ${memTotalM} / 1024 | tr -s " " | cut -c1-5)
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memActiveG=$(expr ${memActiveM} / 1024 | tr -s " " | cut -c1-5)
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fi
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# Variables to show
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showMemPercentage=$(echo ${memPercentage} | cut -d "~" -f 2 | cut -d "." -f 1)
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if [ "${size}" == "G" ] ; then
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showMemTotal="${memTotalG}Gi"
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showMemActive="${memActiveG}Gi"
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elif [ "${size}" == "M" ] ; then
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showMemTotal="${memTotalM}Mi"
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showMemActive="${memActiveM}Mi"
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else
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showMemTotal="${memTotalG}Gi"
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showMemActive="${memActiveG}Gi"
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fi
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memshowactive=$(echo ${showMemActive})
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memshowtotal=$(echo ${showMemTotal})
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echo " ${memshowactive} / ${memshowtotal}"
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