added motd files

Author: shurane

motd/20-sysinfo

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# see https://github.com/yboetz/motd/blob/master/20-sysinfo
+# get load averages
+IFS=" " read LOAD1 LOAD5 LOAD15 <<<$(cat /proc/loadavg | awk '{ print $1,$2,$3 }')
+# get free memory
+IFS=" " read USED FREE TOTAL <<<$(free -htm | grep "Mem" | awk {'print $3,$4,$2'})
+# get processes
+PROCESS=`ps -eo user=|sort|uniq -c | awk '{ print $2 " " $1 }'`
+PROCESS_ALL=`echo "$PROCESS"| awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'`
+PROCESS_ROOT=`echo "$PROCESS"| grep root | awk {'print $2'}`
+PROCESS_USER=`echo "$PROCESS"| grep -v root | awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'`
+# get processors
+PROCESSOR_NAME=`grep "model name" /proc/cpuinfo | cut -d ' ' -f3- | awk {'print $0'} | head -1`
+PROCESSOR_COUNT=`grep -ioP 'processor\t:' /proc/cpuinfo | wc -l`
+# get temp
+TEMP=`vcgencmd measure_temp | cut -d "=" -f 2`
+
+W="\e[0;39m"
+G="\e[1;32m"
+R="\e[1;31m"
+Y="\e[0;33m"
+
+echo -e "
+${W}system info:
+$W  Distro......: $W`cat /etc/*release | grep "PRETTY_NAME" | cut -d "=" -f 2- | sed 's/"//g'`
+$W  Kernel......: $W`uname -sr`
+
+$W  Uptime......: $W`uptime -p`
+$W  Temp........: $Y$TEMP$W
+$W  Load........: $G$LOAD1$W (1m), $G$LOAD5$W (5m), $G$LOAD15$W (15m)
+$W  Processes...: $G$PROCESS_ROOT$W (root), $G$PROCESS_USER$W (user), $G$PROCESS_ALL$W (total)
+
+$W  CPU.........: $W$PROCESSOR_NAME ($G$PROCESSOR_COUNT$W vCPU)
+$W  Memory......: $G$USED$W used, $G$FREE$W free, $G$TOTAL$W total$W"

motd/35-diskspace

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# see https://github.com/yboetz/motd/blob/master/35-diskspace
+# 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 -x overlay --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

motd/README.md

@@ -0,0 +1,4 @@
+
+Much of this was inspired by https://github.com/yboetz/motd
+
+Raspberry Pi returns the CPU temp via `vcgencmd measure_temp`