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Linux Date的用法-shell script

可在shell script 編寫如下

DTSTR=$(date "+%Y/%m/%d %H:%M")

echo $DTSTR

Linux-關閉開機時自動FSCK

vi /etc/fstab

/dev/disk/by-id/scsi-36001438005df72450000800000070000-part1 /Log01_Archive ext3 acl,user_xattr 1 0

將最後一位數字改為0

Nagios to Mail to SMS Script

#!/bin/bash

#cat > /tmp/nagiosalert.tmp

#kill minicom process

cd ~

#Add mobile phone NO.

phone=(0123456789 09123456789)

#Nagios alert messages

    SOURCE_IP=$(cat /tmp/nagiosalert.tmp |grep Address |cut -d: -f 2)

SOURCE_IP=`sed -n '/Address/s/Address://p' /tmp/nagiosalert.tmp`

DIP=`sed -n '/Address/s/Address://p' /tmp/nagiosalert.tmp`

SOURCE_USER_NAME="Nagios"

SOURCE_HOST_NAME=`sed -n '/Host/s/Host://p' /tmp/nagiosalert.tmp`

DTSTR=`date`

ET=$(date -d "$DTSTR" +%F~%T~24~+0800)

DEVICE_EVT_TIME=$(date -d "$DTSTR" +%s)000

#MESSAGE="Device=$SOURCE_HOST_NAME,IP Address=$SOURCE_IP.Device Down"

MESSAGE="Alert Messages!!Host is $SOURCE_HOST_NAME,IP Address is $SOURCE_IP.Host Down or Unreachable!!"

#check sms.txt , if sms.txt exit,the script sleep 30 second, if sms.txt not exit , the will keep going..

while [ -e /tmp/sms.txt ]

do

sleep 30

done

#send sms messages, each messages will delay 5 second!

echo $MESSAGE > /tmp/sms.txt

for ((i=0; i<${#phone[@]}; i++)); do

echo -en "AT+CMGF=1\r" > /dev/ttys0

echo -en "AT+CMGS=\"${phone[$i]}\"\r" > /dev/ttyS0

echo -en "$MESSAGE \032" > /dev/ttyS0

sleep 5

done

rm -rf /tmp/sms.txt

 

exit

Backup Cacti and Nagios

#!/bin/sh

date=`date +%Y-%m-%d`

#backup cacti

tar -czvf /backup/"$date".cacti.tar.gz /srv/www/htdocs/cacti

yes | mysqldump -uroot -pnovellTW -l --add-drop-table cacti > /backup/"$date".mysql.cacti

#backup nagios

tar -czvf /backup/"$date".nagios-cfg.tar.gz /etc/nagios

tar -czvf /backup/"$date".nagios-web.tar.gz /usr/share/nagios

#yes | mysqldump -uroot -pnovellTW -l --add-drop-table nagios > /backup/"$date".mysql.nagios

關閉FSCK

tune2fs -l /dev/sda1

...

Mount count: 2

Maximum mount count: 25

...

To turn off this check set the maximum count to 0 with the '-c' option.

 
 

# tune2fs -c 0 /dev/sda1

If you do not want to completely disable the file system checking, you can also increase the maximum count.

 
 

# tune2fs -c 100 /dev/sda1

####

tune2fs -c 0 -i 0d /dev/xxxx

Iptable redirector

iptables -t nat -A PREROUTING -p udp --destination-port 514 -j REDIRECT --to-ports 1514