KarelWintersky / Debian MOTD generator

``` #!/bin/bash # /etc/update-motd.d/99-mymotd-generator # OR # /etc/profile.d/sysinfo.sh # # Text Color Variables http://misc.flogisoft.com/bash/tip_colors_and_formatting tcLtG="\033[00;37m" # LIGHT GRAY tcDkG="\033[01;30m" # DARK GRAY tcLtR="\033[01;31m" # LIGHT RED tcLtGRN="\033[01;32m" # LIGHT GREEN tcLtBL="\033[01;34m" # LIGHT BLUE tcLtP="\033[01;35m" # LIGHT PURPLE tcLtC="\033[01;36m" # LIGHT CYAN tcW="\033[01;37m" # WHITE tcRESET="\033[0m" tcORANGE="\033[38;5;209m" # Time of day HOUR=$(date +"%H") if [ $HOUR -lt 12 -a $HOUR -ge 0 ]; then TIME="morning" elif [ $HOUR -lt 17 -a $HOUR -ge 12 ]; then TIME="afternoon" else TIME="evening" fi # System uptime uptime=`cat /proc/uptime | cut -f1 -d.` upDays=$((uptime/60/60/24)) upHours=$((uptime/60/60%24)) upMins=$((uptime/60%60)) # System + Memory MEMORY_USED=`free -b | grep Mem | awk '{print $3/$2 * 100.0}'` SWAP_USED=`free -b | grep Swap | awk '{print $3/$2 * 100.0}'` NUM_PROCS=`ps aux | wc -l` # IP первого сетевого интерфейса LOCAL_IP=$(ip -4 addr show | grep -oP '(?<=inet\s)\d+\.\d+\.\d+\.\d+' | grep -v '^127\.' | head -n 1) # Имя сервера HOSTNAME=$(hostname) # ОS OS=$(grep PRETTY_NAME /etc/os-release | cut -d= -f2 | tr -d '"') # Пользователь USER_NAME=$(whoami) [ "$USER_NAME" = "root" ] && USER_NAME="${tcLtR}${USER_NAME}${tcRESET}" # Load average LOADAVG=$(awk '{print $1" "$2" "$3}' /proc/loadavg) SYS_LOADS=`cat /proc/loadavg | awk '{print $1}'` # RAM: всего и свободно (в мегабайтах) RAM_TOTAL=$(free -m | awk '/Mem:/ {print $2}') RAM_FREE=$(free -m | awk '/Mem:/ {print $7}') RAM_FREE_PCT=$(( RAM_FREE * 100 / RAM_TOTAL )) # Количество CPU CPU_COUNT=$(nproc) # Uptime UPTIME=$(uptime -p) # HDD: для корневого раздела / DISK_TOTAL_HUMAN=$(df -h / | awk 'NR==2 {print $2}') DISK_FREE_HUMAN=$(df -h / | awk 'NR==2 {print $4}') # Используем df без форматирования для процентов DISK_TOTAL=$(df -k / | awk 'NR==2 {print $2}') DISK_FREE=$(df -k / | awk 'NR==2 {print $4}') DISK_FREE_PCT=$(( DISK_FREE * 100 / DISK_TOTAL )) echo -e "$tcDkG ===============================================================" echo -e $tcLtG " Good $TIME! $tcORANGE $LOCAL_IP" echo -e $tcDkG "===============================================================" echo -e $tcLtG " - Hostname :$tcW ${$HOSTNAME}" echo -e $tcLtG " - IP Address :$tcW ${LOCAL_IP:-N/A}" echo -e $tcLtG " - User :$tcW ${USER_NAME}" echo -e $tcLtG "===============================================================" echo -e $tcLtG " - OS Release :$tcW $(lsb_release -s -d)" echo -e $tcLtG " - Kernel : `uname -a | awk '{print $1" "$3" "$12}'`" echo -e $tcLtG " - Users : Currently `users | wc -w` user(s) logged on" echo -e $tcLtG "===============================================================" echo -e $tcLtG " - Server Time : `date`" echo -e $tcLtG " - System load : ${SYS_LOADS} / ${NUM_PROCS} processes running" echo -e $tcLtG " - Load average : ${LOADAVG}" echo -e $tcLtG " - System uptime : ${upDays} days ${upHours} hours ${upMins} minutes" echo -e $tcLtG "===============================================================" echo -e $tcLtG " - CPU : ${CPU_COUNT} CPU" echo -e $tcLtG " - RAM : ${RAM_TOTAL} MB, ${RAM_FREE} MB (${RAM_FREE_PCT}%) free" echo -e $tcLtG " - HDD : ${DISK_TOTAL_HUMAN}, ${DISK_FREE_HUMAN} (${DISK_FREE_PCT}%) free" echo -e $tcLtG " - Swap used % : ${SWAP_USED}" echo -e $tcDkG "===============================================================" echo -e $tcRESET "" ```