tmux-kanagawa/scripts/cpu_info.sh

#!/usr/bin/env bash
# setting the locale, some users have issues with different locales, this forces the correct one
export LC_ALL=en_US.UTF-8

current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $current_dir/utils.sh

get_percent()
{
  case $(uname -s) in
    Linux)
      percent=$(LC_NUMERIC=en_US.UTF-8 top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1"%"}')
      normalize_percent_len $percent
      ;;

    Darwin)
      cpuvalue=$(ps -A -o %cpu | awk -F. '{s+=$1} END {print s}')
      cpucores=$(sysctl -n hw.logicalcpu)
      cpuusage=$(( cpuvalue / cpucores ))
      percent="$cpuusage%"
      normalize_percent_len $percent
      ;;

    CYGWIN*|MINGW32*|MSYS*|MINGW*)
      # TODO - windows compatability
      ;;
  esac
}

main()
{
  # storing the refresh rate in the variable RATE, default is 5
  RATE=$(get_tmux_option "@dracula-refresh-rate" 5)
  cpu_label=$(get_tmux_option "@dracula-cpu-usage-label" "CPU")
  cpu_percent=$(get_percent)
  echo "$cpu_label $cpu_percent"
  # echo "$current_dir"
  sleep $RATE
}

# run main driver
main