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#!/bin/bash
#function memory-usage() {
# if [ "$(which bc)" ]; then
# # Display used, total, and percentage of memory using the free command.
# read used total <<< $(free -m | awk '/Mem/{printf $2" "$3}')
# # Calculate the percentage of memory used with bc.
# percent=$(bc -l <<< "100 * $total / $used")
# # Feed the variables into awk and print the values with formating.
# awk -v u=$used -v t=$total -v p=$percent 'BEGIN {printf "%s/%s %.1f% ", t, u, p}'
# #awk -v u=$used -v p=$percent 'BEGIN {printf "%s %.1f% ", u, p}'
# fi
#}
#
#function main() {
# # Comment out any function you do not need.
# memory-usage
#}
#
## Calling the main function which will call the other functions.
#main
getCPU=$[100-$(vmstat 1 2|tail -1|awk '{print $15}')]
# grab the second line of the ouput produced by the command: free -g (displays output in Gb)
getMem=$(free -h | sed -n '2p')
getMemPct=$(free -g | sed -n '2p')
#split the string in secondLine into an array
read -ra ADDR <<< "$getMem"
read -ra ADDRPct <<< "$getMemPct"
#get the total RAM from array
totalRam="${ADDR[1]//[^0-9.0-9]/}"
totalRamPct="${ADDRPct[1]}"
#get the used RAM from array
usedRam="${ADDR[2]//[^0-9.0-9]/}"
usedRamPct="${ADDRPct[2]}"
# calculate and display the percentage
pct="$(($usedRamPct*100/$totalRamPct))"
#echo "$pct%"
usage="$usedRam/$totalRam"
#echo "cpu:$getCPU% | mem:$pct% ($usage""G)"
echo "cpu:$getCPU% | mem:$pct% |"
#if
# [[ `tmux show-option -w status-right` ]];
#then
# echo ""
# echo "cpu:$getCPU% | mem:$pct% |"
#else
#fi
# tmux set -ag status-right "#[fg=#50fa7b,bg=default] #{?client_prefix,#[reverse] Prefix #[noreverse] ,} #[bg=default,fg=#50fa7b]#[bg=#50fa7b,fg=black]#( ~/.config/tmux/right-status.sh ) %H:%M | %d-%b-%y "
# tmux set -ag status-right "#[fg=#50fa7b,bg=default] #{?client_prefix,#[reverse] Prefix #[noreverse] ,} #[bg=default,fg=#50fa7b]#[bg=#50fa7b,fg=black] %H:%M | %d-%b-%y "
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