Display Info About Raspberry Pi

pi_info.sh

# Cheers to the original author https://www.raspberrypi.org/forums/viewtopic.php?t=23440
function pi_info_uptime() {
  let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
  let secs=$((${upSeconds}%60))
  let mins=$((${upSeconds}/60%60))
  let hours=$((${upSeconds}/3600%24))
  let days=$((${upSeconds}/86400))
  printf "%d days, %d hours, %d minutes, %d seconds" "$days" "$hours" "$mins" "$secs"
}

function pi_info_clock_mhz() {
  clock=`sudo cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq`
  clock_mhz=`expr ${clock} / 1000`
  max_clock=`sudo cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq`
  throttled=`if [ $max_clock -gt $clock ]; then echo "(throttled)"; fi`
  echo ${clock_mhz} Mhz ${throttled}
}

function pi_info_mem_used() {
  mem_total=`cat /proc/meminfo | grep MemTotal | awk {'print $2'}`
  mem_total_gb=`python -c "print round(${mem_total} / 1000000.0, 2)"`
  mem_free=`cat /proc/meminfo | grep MemAvailable | awk {'print $2'}`
  mem_free_gb=`python -c "print round(${mem_free} / 1000000.0, 2)"`
  mem_used_gb=`python -c "print round((${mem_total} - ${mem_free}) / 1000000.0, 2)"`
  echo ${mem_used_gb} / ${mem_total_gb}GB Used
}

function pi_info_temp() {
  echo `/opt/vc/bin/vcgencmd measure_temp | cut -d'=' -f 2`
}

function pi_info_running_processes() {
  echo `ps ax | wc -l | tr -d " "`
}

function pi_info_ip_address() {
  echo `hostname -I | cut -d' ' -f 1`
}

function pi_info_wifi_strength() {
  link_quality=`iwconfig wlan0 | grep "Link Quality" | cut -d"=" -f 2 | cut -d " " -f 1`
  echo `python -c "print('%d%%' % round(${link_quality}.0 * 100))"`
}

function pi_info_free_disk_space() {
  df -h | grep "^/dev" | while read line; do
    drive=`echo $line | tr -s ' ' | cut -d' ' -f 6`
    space=`echo $line | tr -s ' ' | cut -d' ' -f 4`
    echo "${drive} (${space})"
  done | tr -s "\n" "," | sed -e 's/,/, /g'
}

function pi_info_fan_status() {
  status=`python -c "from fanshim import FanShim; print FanShim().get_fan()"`
  if [ "$status" -eq "1" ]; then echo "on"; else echo "off"; fi
}

function pi_info() {
  read one five fifteen rest < /proc/loadavg

  echo "$(tput setaf 2)
     .~~.   .~~.    `date +"%A, %e %B %Y, %r"`
    '. \ ' ' / .'   `uname -srmo`$(tput setaf 1)
     .~ .~~~..~.
    : .~.'~'.~. :   Uptime.............: `pi_info_uptime`
   ~ (   ) (   ) ~  CPU................: Temp: `pi_info_temp`, Clock: `pi_info_clock_mhz`, Fan: `pi_info_fan_status`
  ( : '~'.~.'~' : ) Workload...........: Load: ${one}, ${five}, ${fifteen} (1, 5, 15 min), Running Processes: `pi_info_running_processes`
   ~ .~ (   ) ~. ~  Memory.............: `pi_info_mem_used`
    (  : '~' :  )   Network............: IP: `pi_info_ip_address`, WiFi Strength: `pi_info_wifi_strength`
     '~ .~~~. ~'    Free Disk Space....: `pi_info_free_disk_space`
         '~'
  $(tput sgr0)"
}

pi_info

Tested on Raspberry Pi 4