======スクリプト集======

=====定期的reboot=====

sudo crontab -e
<code>
30 2 * * * /root/bin/maintenance_reboot > /dev/null 2>&1
</code>

<code>
# touch  /var/log/maintenance_reboot.log
# chmod 644  /var/log/maintenance_reboot.log
# vi /root/bin/maintenance_reboot
</code>

maintenance_reboot
<code bash maintenance_reboot.bash>
#!/bin/bash
logmsg() {
  echo $1 >> /var/log/maintenance_reboot.log
  echo $1
}
msg="`date` uptime: `cat /proc/uptime | awk '{print $1 / 60 }'` : reboot "
/root/bin/mailnotify
sleep 30
if [ "${1}" = "-t"  ] ;then
        logmsg "$msg (test)"
else
        logmsg "$msg (execute)"
#        /sbin/shutdown -r 1
fi
</code>

=====mailnotify=====

====スクリプト====
<code bash mailnotify.bash>
#!/bin/bash
subject="maintenance report (`date '+%Y/%m/%d %T'`)"
msg="$subject"
msg="$msg\nuptime: `cat /proc/uptime | awk '{print $1 / 60}'` min"
tmp=""
for i in `/sbin/ifconfig | /bin/grep "Link encap:" | /usr/bin/awk '{print $1}'`;
  do tmp="$tmp$i:`/sbin/ifconfig $i | \\
        /bin/sed 's/inet addr:/inet addr: /' | \\
        /bin/grep "inet addr:" | \\
        /usr/bin/awk '{print $3}'`, ";
done
msg="$msg\n$tmp"
msg="$msg\n----"
msg="$msg\n`cat /var/log/messages`"
#echo -e "$msg"
#echo -e "$msg" | /usr/bin/mail -s "$subject" root
echo -e "$msg" | /usr/bin/mail -s "$subject" hiroshi.yamada@gmail.com
</code>

====mail設定====
http://blog.muchuu.net/post/113402952220/

postfixよりnullmailの方が簡単

<code>
# apt-get install nullmailer mailutils
# vi /etc/nullmailer/remotes
smtp.gmail.com smtp --port=465 --auth-login --user=namahamu.hiroshi@gmail.com --pass=h1r0sh1n0m0h03u --ssl

# chown mail:mail /etc/nullmailer/remotes (不要？)
# chmod 600 /etc/nullmailer/remotes

# /etc/init.d/nullmailer restart
<code>

vi /etc/rsyslog.conf
<code>
#daemon.*;mail.*;\
#    news.err;\
#    *.=debug;*.=info;\
#    *.=notice;*.=warn    |/dev/xconsole
</code>

=====コンソール文字出力=====

関連URL
  *http://www.m-bsys.com/linux/echo-color-1
  *http://d.hatena.ne.jp/foussin/20140503/1399122536

基本
  # echo > /dev/tty1

赤色
  # c > /dev/tty1

クリア
  # echo -e "\e[2J" > /dev/tty1

カーソル位置
  # echo -e "\e[0;0H " > /dev/tty1

クリア (カーソル位置も初期化)
  # echo -e "\e[2J\e[0;0H" > /dev/tty1

=====fbclock=====
# apt-get install sysvbanner

vi fbclock
<code bash fbclock.bash>
#!/bin/bash
while true;
do
        # echo `date` > /dev/tty1
        echo -e "\e[2J\e[0;0H" > /dev/tty1
        banner `date +%H%M%S` > /dev/tty1
        sleep 1
done
</code>

=====cleanlog=====

<code bash cleanlog.bash>
#!/bin/bash
file_clean() {
  if [ -f $1 ]; then
    #:> $1
    cp /dev/null $1
  fi
}

find /var/log -name "*.?" -type f -exec rm -f {} \;
find /var/log -name "*.gz" -type f -exec rm -f {} \;
find /var/log -name "*.old" -type f -exec rm -f {} \;

find /var/log -type f -exec cp /dev/null {} \;

find /home -name ".bash_history" -type f -exec cp /dev/null {} \;
find /root -name ".bash_history" -type f -exec cp /dev/null {} \;
</code>