tmux-kanagawa/scripts/ram_info.sh

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#!/usr/bin/env bash
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# function for getting the refresh rate
get_tmux_option() {
local option=$1
local default_value=$2
local option_value=$(tmux show-option -gqv "$option")
if [ -z $option_value ]; then
echo $default_value
else
echo $option_value
fi
}
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get_percent()
{
case $(uname -s) in
Linux)
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# percent=$(free -m | awk 'NR==2{printf "%.1f%%\n", $3*100/$2}')
used_mem=$(free -g | grep Mem: | awk '{mem += $3} END {print mem}')
total_mem=$(free -h | grep Mem: | awk '{mem += $2} END {print mem}')
if (( $used_mem == 0 )); then
memory_usage=$(free -m | grep Mem: | awk '{mem += $3} END {print mem}')
echo $memory_usage\M\B/$total_mem\G\B
else
memory_usage=$(free -g | grep Mem: | awk '{mem += $3} END {print mem}')
echo $memory_usage\G\B/$total_mem\G\B
fi
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;;
Darwin)
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# percent=$(ps -A -o %mem | awk '{mem += $1} END {print mem}')
# Get used memory blocks with vm_stat, multiply by 4096 to get size in bytes, then convert to MiB
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used_mem=$(vm_stat | grep ' active\|wired ' | sed 's/[^0-9]//g' | paste -sd ' ' - | awk '{printf "%d\n", ($1+$2) * 4096 / 1048576}')
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total_mem=$(system_profiler SPHardwareDataType | grep "Memory:" | awk '{print $2 $3}')
if (( $used_mem < 1024 )); then
echo $used_mem\M\B/$total_mem
else
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memory=$(($used_mem/1024))
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echo $memory\G\B/$total_mem
fi
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;;
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FreeBSD)
# Looked at the code from neofetch
hw_pagesize="$(sysctl -n hw.pagesize)"
mem_inactive="$(($(sysctl -n vm.stats.vm.v_inactive_count) * hw_pagesize))"
mem_unused="$(($(sysctl -n vm.stats.vm.v_free_count) * hw_pagesize))"
mem_cache="$(($(sysctl -n vm.stats.vm.v_cache_count) * hw_pagesize))"
free_mem=$(((mem_inactive + mem_unused + mem_cache) / 1024 / 1024))
total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
used_mem=$((total_mem - free_mem))
echo $used_mem
if (( $used_mem < 1024 )); then
echo $used_mem\M\B/$total_mem
else
memory=$(($used_mem/1024))
echo $memory\G\B/$total_mem
fi
;;
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CYGWIN*|MINGW32*|MSYS*|MINGW*)
# TODO - windows compatability
;;
esac
}
main()
{
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# storing the refresh rate in the variable RATE, default is 5
RATE=$(get_tmux_option "@dracula-refresh-rate" 5)
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ram_percent=$(get_percent)
echo "RAM $ram_percent"
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sleep $RATE
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}
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#run main driver
main