A "Graphical" Welcome Message With Lots of Handy Info. Put It In The Bottom Of Your .bashrc

RaspberryPi_WelcomeMSG

function welcome_msg() {
    local upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
    local secs=$((upSeconds%60))
    local mins=$((upSeconds/60%60))
    local hours=$((upSeconds/3600%24))
    local days=$((upSeconds/86400))
    local UPTIME=$(printf "%d days, %02dh%02dm%02ds" "$days" "$hours" "$mins" "$secs")

    # calculate rough CPU and GPU temperatures:
    local cpuTempC
    local cpuTempF
    local gpuTempC
    local gpuTempF
    if [[ -f "/sys/class/thermal/thermal_zone0/temp" ]]; then
        cpuTempC=$(($(cat /sys/class/thermal/thermal_zone0/temp)/1000)) && cpuTempF=$((cpuTempC*9/5+32))
    fi

        if [[ -f "/opt/vc/bin/vcgencmd" ]]; then
                if gpuTempC=$(/opt/vc/bin/vcgencmd measure_temp); then
                        gpuTempC=${gpuTempC:5:2}
                    gpuTempF=$((gpuTempC*9/5+32))
                else
                        gpuTempC=""
                fi
        fi

        local df_out=()
    local line
    while read line; do
        df_out+=("$line")
    done < <(df -h)

        # get the load averages
        read one five fifteen rest < /proc/loadavg

echo "$(tput setaf 2)
   .~~.   .~~.    $(date +"%A, %e %B %Y, %r")
  '. \ ' ' / .'   $(uname -srmo)$(tput setaf 1)
   .~ .~~~..~.
  : .~.'~'.~. :   $(tput setaf 3)${df_out[0]}$(tput setaf 1)
 ~ (   ) (   ) ~  $(tput setaf 7)${df_out[1]}$(tput setaf 1)
( : '~'.~.'~' : ) $(tput setaf 7)${df_out[7]}$(tput setaf 1)
 ~ .~       ~. ~  $(tput setaf 1)Uptime.............: ${UPTIME}
  (  $(tput setaf 4) |   | $(tput setaf 7)  )  $(tput setaf 1) Memory.............: $(grep MemFree /proc/meminfo | awk {'print $2'})kB (Free) / $(grep MemTotal /proc/meminfo | awk {'print $2'})kB (Total)$
  '~         ~'  $(tput setaf 1) Load Averages......: ${one}, ${five}, ${fifteen} (1, 5, 15 min)$(tput setaf 7)
    *--~-~--*    $(tput setaf 1) Running Processes..: $(ps ax | wc -l | tr -d " ")$(tput setaf 7)
                 $(tput setaf 1) IP Address.........: $(ip route get 8.8.8.8 2>/dev/null | head -1 | cut -d' ' -f8) $(tput setaf 7)
                 $(tput setaf 1) Temperature........: CPU: $cpuTempC°C/$cpuTempF°F GPU: $gpuTempC°C/$gpuTempF°F

$(tput sgr0)"
}

welcome_msg