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echo '#!/bin/sh
2

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[ -r /etc/lsb-release ] && . /etc/lsb-release
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5
if [ -x /usr/bin/lsb_release ]; then
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        # Fall back to using the very slow lsb_release utility
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        LSBI=$(lsb_release -s -i)
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        LSBR=$(lsb_release -s -r)
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fi
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printf "Welcome to %s %s (%s %s %s)\n" "$LSBI" "$LSBR" "$(uname -o)" "$(uname -r)" "$(uname -m)"
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' | sudo tee /etc/update-motd.d/00-header
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sudo chmod +x /etc/update-motd.d/00-header

1
Welcome to Debian 12 (GNU/Linux 6.1.0-23-amd64 x86_64)

1
echo '#!/bin/sh
2

3
[ -r /etc/lsb-release ] && . /etc/lsb-release
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5
if [ -x /usr/bin/lsb_release ]; then
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        # Fall back to using the very slow lsb_release utility
7
        LSBI=$(lsb_release -s -i)
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        LSBR=$(lsb_release -s -r)
9
fi
10

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printf "# Welcome to \033[1;36m%s,\033[0m you are logged in as \033[1;20m%s\033[0m\n" "$(hostname -s)" "$(whoami)"
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printf "# This system is running \033[1;32m%s %s\033[0m (\033[1;33m%s %s %s\033[0m)\n" "$LSBI" "$LSBR" "$(uname -o)" "$(uname -r)" "$(uname -m)"
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free -m | awk '\''NR==2 {printf "# Memory usage: \033[1;35m%.1fGB/%.1fGB %.2f%%\033[0m  ", $3/1000,$2/1000,$3*100/$2}'\''
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df -h | awk '\''$NF=="/" {printf "  Disk usage: \033[1;35m%.1fGB/%.1fGB %s\033[0m\n", $3,$2,$5}'\''
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' | sudo tee /etc/profile.d/motd.sh > /dev/null
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sudo chmod +x /etc/profile.d/motd.sh

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# Welcome to Debian, you are logged in as root
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# This system is running Debian 12 (GNU/Linux 6.1.0-32-amd64 x86_64)

1
echo "
2
Welcome to $(lsb_release -s -i) ($(uname -o)) Server!
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" | sudo tee /etc/motd > /dev/null

1
Welcome to Debian (GNU/Linux) Server!