dotfiles/scripts/meminfo.sh

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2021-11-13 19:22:38 +01:00
#!/bin/bash
# Script to show meminfo
# Created by q3aql (q3aql@duck.com)
# Licensed by GPL v.2
# Date: 10-01-2020
# --------------------------------------
VERSION="1.0"
# Configuration variables
memfile="/proc/meminfo"
size="G" # Change to M for MiB
# Check if calc is installed
calc -version &> /dev/null
error=${?}
if [ ${error} -ne 0 ] ; then
echo ""
echo " meminfo v$VERSION"
echo " ------------"
echo ""
echo " The command 'calc' is not installed!"
echo ""
echo " You can install it with:"
echo " sudo apt-get install apcalc"
echo ""
exit
fi
# Variables
memTotal=$(cat ${memfile} | grep -i "memtotal:" | head -1 | tr -s " " | cut -d " " -f 2)
memActive=$(cat ${memfile} | grep -i "memavailable:" | head -1 | tr -s " " | cut -d " " -f 2)
memActive=$(expr ${memTotal} - ${memActive})
# Variables to calculate
memTotalM=$(expr ${memTotal} / 1024 )
memActiveM=$(expr ${memActive} / 1024)
memPercentage=$(calc ${memActive} / ${memTotal} \* 100)
memTotalG=$(calc ${memTotalM} / 1024 | tr -s " " | cut -c1-5)
memActiveG=$(calc ${memActiveM} / 1024 | tr -s " " | cut -c1-5)
# Variables to show
showMemPercentage=$(echo ${memPercentage} | cut -d "~" -f 2 | cut -d "." -f 1)
if [ "${size}" == "G" ] ; then
showMemTotal="${memTotalG} GiB"
showMemActive="${memActiveG} GiB"
elif [ "${size}" == "M" ] ; then
showMemTotal="${memTotalM} MiB"
showMemActive="${memActiveM} MiB"
else
showMemTotal="${memTotalG} GiB"
showMemActive="${memActiveG} GiB"
fi
# Show percentage bar
if [ ${showMemPercentage} -ge 3 ] ; then
showMemPercentageBar="="
fi
if [ ${showMemPercentage} -ge 12 ] ; then
showMemPercentageBar="==="
fi
if [ ${showMemPercentage} -ge 25 ] ; then
showMemPercentageBar="====="
fi
if [ ${showMemPercentage} -ge 35 ] ; then
showMemPercentageBar="======"
fi
if [ ${showMemPercentage} -ge 40 ] ; then
showMemPercentageBar="======="
fi
if [ ${showMemPercentage} -ge 45 ] ; then
showMemPercentageBar="========"
fi
if [ ${showMemPercentage} -ge 50 ] ; then
showMemPercentageBar="=========="
fi
if [ ${showMemPercentage} -ge 62 ] ; then
showMemPercentageBar="============="
fi
if [ ${showMemPercentage} -ge 75 ] ; then
showMemPercentageBar="==============="
fi
if [ ${showMemPercentage} -ge 85 ] ; then
showMemPercentageBar="================="
fi
if [ ${showMemPercentage} -ge 90 ] ; then
showMemPercentageBar="=================="
fi
if [ ${showMemPercentage} -ge 95 ] ; then
showMemPercentageBar="==================="
fi
if [ ${showMemPercentage} -ge 100 ] ; then
showMemPercentageBar="===================="
fi
# Show results
if [ "$1" == "-t" ] ; then
echo ${showMemTotal}
elif [ "$1" == "-a" ] ; then
echo ${showMemActive}
elif [ "$1" == "-p" ]; then
echo ${showMemPercentage}%
elif [ "$1" == "-b" ]; then
echo ${showMemPercentageBar}
else
showMemTotalNoSpaces=$(echo ${showMemTotal})
showMemActiveNoSpaces=$(echo ${showMemActive})
echo ""
echo " meminfo v$VERSION"
echo " ------------"
echo ""
echo " MemTotal = ${showMemTotalNoSpaces}"
echo " MemActive = ${showMemActiveNoSpaces}"
echo ""
echo " MemPercentage Use:"
echo " ${showMemPercentageBar} ${showMemPercentage}%"
echo ""
echo " Available commands:"
echo ""
echo " meminfo.sh -t | Show MemTotal"
echo " meminfo.sh -a | Show MemActive"
echo " meminfo.sh -p | Show MemPercentage"
echo " meminfo.sh -b | Show MemPercentage Bar"
echo ""
echo " Note: Conky require 'maximum_width = 240'"
echo ""
fi