Add motd.sh

motd.sh

@@ -0,0 +1,105 @@
+#!/bin/bash
+
+### Time and date ###
+echo -e "$(date)"
+
+echo -e
+
+
+### Hostname ###
+echo -e "$(/usr/bin/env figlet "$(hostname)" | /usr/bin/env lolcat -f -F 0.05 -S 50)"
+
+
+echo -e
+
+
+### System info ###
+echo -e "`cat /etc/*release | grep "PRETTY_NAME" | cut -d "=" -f 2- | sed 's/"//g'` | Kernel: `uname -r`
+Uptime: `uptime -p | sed 's/up //'`"
+
+
+### Services ###
+# set column width
+COLUMNS=1
+# colors
+green="\e[1;32m"
+red="\e[1;31m"
+undim="\e[0m"
+
+services=("docker" "mariadb" "cronie")
+# sort services
+IFS=$'\n' services=($(sort <<<"${services[*]}"))
+unset IFS
+
+service_status=()
+# get status of all services
+for service in "${services[@]}"; do
+    service_status+=($(systemctl is-active "$service"))
+done
+
+out=""
+for i in ${!services[@]}; do
+    # color green if service is active, else red
+    if [[ "${service_status[$i]}" == "active" ]]; then
+        out+="${services[$i]}:,${green}${service_status[$i]}${undim},"
+    else
+        out+="${services[$i]}:,${red}${service_status[$i]}${undim},"
+    fi
+    # insert \n every $COLUMNS column
+    if [ $((($i+1) % $COLUMNS)) -eq 0 ]; then
+        out+="\n"
+    fi
+done
+out+="\n"
+
+printf "\nServices:\n"
+printf "$out" | column -ts $',' | sed -e 's/^/  /'
+
+
+### Disk space ###
+# config
+max_usage=90
+bar_width=50
+# colors
+white="\e[39m"
+green="\e[1;32m"
+red="\e[1;31m"
+dim="\e[2m"
+undim="\e[0m"
+
+# disk usage: ignore zfs, squashfs & tmpfs
+mapfile -t dfs < <(df -H -x zfs -x squashfs -x tmpfs -x devtmpfs --output=target,pcent,size | tail -n+2)
+printf "\nDisk usage:\n"
+
+for line in "${dfs[@]}"; do
+    # get disk usage
+    usage=$(echo "$line" | awk '{print $2}' | sed 's/%//')
+    used_width=$((($usage*$bar_width)/100))
+    # color is green if usage < max_usage, else red
+    if [ "${usage}" -ge "${max_usage}" ]; then
+        color=$red
+    else
+        color=$green
+    fi
+    # print green/red bar until used_width
+    bar="[${color}"
+    for ((i=0; i<$used_width; i++)); do
+        bar+="="
+    done
+    # print dimmmed bar until end
+    bar+="${white}${dim}"
+    for ((i=$used_width; i<$bar_width; i++)); do
+        bar+="="
+    done
+    bar+="${undim}]"
+    # print usage line & bar
+    echo "${line}" | awk '{ printf("%-31s%+3s used out of %+4s\n", $1, $2, $3); }' | sed -e 's/^/  /'
+    echo -e "${bar}" | sed -e 's/^/  /'
+done
+
+
+### Welcome message ###
+LAST_LOGIN=$(last -w | grep arisu | head -2 | tail -1)
+echo -e
+echo -e "Welcome to $(hostname), $(whoami)!
+Last login: $(echo "$LAST_LOGIN" | awk '{for(i=4;i<=NF;i++) print $i}' | paste -sd ' ') from $(echo "$LAST_LOGIN" | awk '{print $3}')"