2. ใส่ #! /bin/sh upSeconds=`/usr/bin/cut -d. -f1 /proc/uptime` secs=$(($upSeconds%60)) mins=$(($upSeconds/60%60)) hours=$(($upSeconds/3600%24)) days=$(($upSeconds/86400)) UPTIME=`printf "%d days, %02dh %02dm %02ds " "$days" "$hours" "$mins" "$secs"` echo "\033[0;32m .~~. .~~. \033[0;37m`date +"%A, %e %B %Y, %R"`\033[0;32m '. \ ' ' / .' \033[0;37m`uname -srmo`\033[0;31m .~ .~~~..~. \033[0;37m\033[0;31m : .~.'~'.~. : \033[0;37mUptime.............: $UPTIME\033[0;31m ~ ( ) ( ) ~ \033[0;37mMemory.............: $((`cat /proc/meminfo | grep MemFree | awk {'print $2'}`/1024))MB (Free) / $((`cat /proc/meminfo | grep MemTotal | awk {'print $2'}`/1024))MB (Total)\033[0;31m ( : '~'.~.'~' : ) \033[0;37mRunning Processes..: `ps ax | wc -l | tr -d " "`\033[0;31m ~ .~ ( ) ~. ~ \033[0;37m\033[0;31m ( : '~' : ) \033[0;37mIP Addresses.......: `/sbin/ifconfig | /bin/grep "Bcast:" | /usr/bin/cut -d ":" -f 2 | /usr/bin/cut -d " " -f 1` / `wget -q -O - http://icanhazip.com/ | tail`\033[0;31m '~ .~~~. ~' \033[0;37mTemperature........: `vcgencmd measure_temp | sed "s/temp=//"`\033[0;31m '~' \033[0;37m" > /etc/motd
3. sudo chmod +x /root/update_motd.sh
4.sudo ./update_motd.sh
5. เพิ่มใน cron ให้ทำงานตลอด
crontab -e
5 * * * * /root/update_motd.sh
#ให้ทำงานทุก 5 นาที
ที่มา http://www.pihomeserver.fr/en/2013/04/29/personnaliser-votre-message-de-connexion-ssh-avec-motd/
อธิบาย
http://www.mewbies.com/how_to_customize_your_console_login_message_tutorial.htm
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