motd for logins. Just put in /etc/profile.d/

motd.sh

#!/bin/bash
freemem=`cat /proc/meminfo|grep 'MemF'| awk '{print int($2/1024)}'`
totalmem=`cat /proc/meminfo|grep 'MemT'| awk '{print int($2/1024)}'`
usedmem=`echo $totalmem-$freemem | bc`

echo -e "
                     \033[1;34mHi $USER!\033[0;37m
 \033[0;90m+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 \033[0;90m+  \033[1;94mHostname....: \033[36m$(hostname)
 \033[0;90m+  \033[1;94mKernel......: \033[36m$(uname -r)
 \033[0;90m+  \033[1;94mUptime......: \033[36m$(uptime -p) \e[0m- \033[32m$(uptime -s)
 \033[0;90m+  \033[1;94mCPU Temp....: \033[36m$(cat /sys/devices/platform/coretemp.0/hwmon/hwmon2/temp2_input | cut -c1-2)°C
 \033[0;90m+  \033[1;94mMemory Used.:\033[36m $usedmem MB \e[0m/ \033[32m$totalmem MB
 \033[0;90m+  \033[1;94mDisk........: \033[36m$(df -h | grep "sda1" | awk '{print $3}' | sed 's/.$//') GB \e[0m/ \033[32m$(df -h | grep "sda1" | awk '{print $2}' | sed 's/.$//') GB
 \033[0;90m+  \033[1;94mLoad........: \033[36m$(cat /proc/loadavg | awk '{print $1}')\e[0m \033[32m$(cat /proc/loadavg | awk '{print $2}')\e[1m \033[36m$(cat /proc/loadavg | awk '{print $3}')
 \033[0;90m+  \033[1;94mProcesses...: \033[36m$(ps -ef | wc -l | sed -e 's/^[ \t]*//') Total \e[0m- \033[32m$(ps -u "$(echo $(w -h | cut -d ' ' -f1 | sort -u))" o user= | sort | uniq -c | sort -rn | awk '{print $1}' | sed -e 's/^[ \t]*//') $USER
 \033[0;90m+  \033[1;94mIP Address..: \033[36m$(hostname -i)
 \033[0;90m++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 "

motd_rpi.sh

#!/bin/bash
freemem=`cat /proc/meminfo|grep 'MemF'| awk '{print int($2/1024)}'`
totalmem=`cat /proc/meminfo|grep 'MemT'| awk '{print int($2/1024)}'`
usedmem=`echo $totalmem-$freemem | bc`

echo -e "
                     \033[1;34mHi $USER!\033[0;37m
 \033[0;90m+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 \033[0;90m+  \033[1;94mHostname....: \033[36m$(hostname)
 \033[0;90m+  \033[1;94mKernel......: \033[36m$(uname -r)
 \033[0;90m+  \033[1;94mUptime......: \033[36m$(uptime -p) \e[0m- \033[32m$(uptime -s)
 \033[0;90m+  \033[1;94mCPU Temp....: \033[36m$(/opt/vc/bin/vcgencmd measure_temp | cut -c 6-9)°C
 \033[0;90m+  \033[1;94mMemory Used.:\033[36m $usedmem MB \e[0m/ \033[32m$totalmem MB
 \033[0;90m+  \033[1;94mDisk........: \033[36m$(df -h | grep "root" | awk '{print $3}' | sed 's/.$//') GB \e[0m/ \033[32m$(df -h | grep "root" | awk '{print $2}' | sed 's/.$//') GB
 \033[0;90m+  \033[1;94mLoad........: \033[36m$(cat /proc/loadavg)
 \033[0;90m+  \033[1;94mProcesses...: \033[36m$(ps -ef | wc -l | sed -e 's/^[ \t]*//') Total \e[0m- \033[32m$(ps -u "$(echo $(w -h | cut -d ' ' -f1 | sort -u))" o user= | sort | uniq -c | sort -rn | awk '{print $1}' | sed -e 's/^[ \t]*//') $USER
 \033[0;90m+  \033[1;94mIP Address..: \033[36m$(hostname -i)
 \033[0;90m+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\e[0m
 "