Change welcome message in Ubuntu

README.md

Change welcome message in Ubuntu

$ sudo apt-get install figlet lolcat strace
$ sudo mv /etc/update-motd.d/00-header /etc/update-motd.d/00-header-old
$ sudo chmod -x /etc/update-motd.d/*
$ sudo touch /etc/update-motd.d/00-header
$ sudo chmod +x /etc/update-motd.d/00-header
$ sudo vi /etc/update-motd.d/00-header

#!/bin/sh

# redirect errors to stdout -- just in case
exec 2>&1

[ -r /etc/lsb-release ] && . /etc/lsb-release

if [ -z "$DISTRIB_DESCRIPTION" ] && [ -x /usr/bin/lsb_release ]; then
   # Fall back to using the very slow lsb_release utility
   DISTRIB_DESCRIPTION=$(lsb_release -s -d)
fi

# lolcat MIGHT NOT BE IN $PATH YET, SO BE EXPLICIT
LOLCAT=/usr/games/lolcat

# UPPERCASE HOSTNAME, APPLY FIGLET FONT "block" AND CENTERING
INFO_HOST=$(echo $(hostname) | awk '{print toupper($0)}' | figlet -tc -f block)

# GET OS/ARCH/DATE, APPLY FIGLET FONT "term" AND CENTERING
INFO_OS=$(printf "%s (%s)\n%s" "$DISTRIB_DESCRIPTION" "$(uname -r)" "$(date)" | figlet -tc -f term)

# RUN IT ALL THROUGH lolcat FOR COLORING
# NOTE: needs -f to force color output since intermediate file is not a TTY
printf "%s\n%s\n" "$INFO_HOST" "$INFO_OS" | $LOLCAT -f