Motd generator - goes in /etc/periodic/15min/motd.sh

motd.sh

#!/bin/sh

UPTIME_DAYS=$(expr `cat /proc/uptime | cut -d '.' -f1` % 31556926 / 86400)
UPTIME_HOURS=$(expr `cat /proc/uptime | cut -d '.' -f1` % 31556926 % 86400 / 3600)
UPTIME_MINUTES=$(expr `cat /proc/uptime | cut -d '.' -f1` % 31556926 % 86400 % 3600 / 60)

cat > /etc/motd << EOF
  ____             _                     _
 |  _ \           | |                   | |
 | |_) | ___ _ __ | |__  _ __ ___   ___ | | __
 |  _ < / _ \ '_ \| '_ \| '__/ _ \ / _ \| |/ /
 | |_) |  __/ | | | |_) | | | (_) | (_) |   <
 |____/ \___|_| |_|_.__/|_|  \___/ \___/|_|\_\\

`hostname -f` (`ifconfig eth0 | grep "inet addr" | awk -F: '{print $2}' | awk '{print $1}'`)
`uname -v` with `uname -r`
Uptime: $UPTIME_DAYS days, $UPTIME_HOURS hours, $UPTIME_MINUTES minutes
Memory: `free -m | head -n 2 | tail -n 1 | awk {'print $2'}`M / `free -m | head -n 2 | tail -n 1 | awk {'print $4'}`M free
Swap: `free -m | tail -n 1 | awk {'print $2'}`M / `free -m | tail -n 1 | awk {'print $4'}`M free
Disk: `df -h / | awk '{ a = $2 } END { print a }'` / `df -h / | awk '{ a = $4 } END { print a }'` free
CPU Load: `cat /proc/loadavg | awk '{print $1 ", " $2 ", " $3}'`

EOF