sed -i ’s/product1.php/product.php/g’ *.php

In the command above  “product1.php” is replaced with “product.php” across all files with extension “.php” within the project folder.

  * .at matches any three-character string ending with "at",

      including "hat", "cat", and "bat".

  * [hc]at matches "hat" and "cat".
  * [^b]at matches all strings matched by .at except "bat".
  * ^[hc]at matches "hat" and "cat", but only at the beginning

     of the string or line.
  * [hc]at$ matches "hat" and "cat", but only at the end

     of the string or line.
  * \[.\] matches any single character surrounded by "[" and "]"

       since the brackets are escaped, for      example: "[a]" and "[b]".
  * [hc]+at matches "hat", "cat", "hhat", "chat", "hcat",

       "ccchat", and so on, but not "at".
  * [hc]?at matches "hat", "cat", and "at".
  * [hc]*at matches "hat", "cat", "hhat", "chat", "hcat", "ccchat",

       "at", and so on.
  * cat|dog matches "cat" or "dog".

#!/bin/bash
cd /ct20/uploads/backup/
NOW=$(date +”%m-%d-%Y”)
tar -cjf backupsite_$NOW.bz2 /opt/www/ct20
tar -cjf backupcms_$NOW.bz2 /opt/www/cms
tar -cjf mysqlbackup_$NOW.bz2 /opt/lib/mysql

DB_LIST=”$(mysql -u root -Bse ’show databases’ | egrep -v ‘information_schema|mysql|test’)”
for db in ${DB_LIST[@]}
do
TABLENAMES=”$(mysql -u root $db -Bse ’show tables’)”
echo “Database: “$db
for TABLENAME in ${TABLENAMES[@]}
do
mysql -u root $db -Bse “optimize TABLE $TABLENAME;”
echo $TABLENAME” table has been optimized”
done
echo $db – $TABLENAME “Optimized has been completed”
done
echo “All Databases have been successfully Optimized”

DB_LIST=”$(mysql -u root -Bse ’show databases’ | egrep -v ‘information_schema|mysql|test’)”
for db in ${DB_LIST[@]}
do
TABLENAMES=”$(mysql -u root $db -Bse ’show tables’)”
echo “Database: “$db
for TABLENAME in ${TABLENAMES[@]}
do
mysql -u root $db -Bse “Analyze TABLE $TABLENAME;”
echo $TABLENAME “Analyze has been done”
done
echo $db – $TABLENAME “Analyzis has been completed”
done
echo “All Databases have been successfully Optimized”

cd /var/log/httpd
NOW=$(date +”%m-%d-%Y”)
mv mobile-error_log mobile-error_log-$NOW
mv mobile-access_log mobile-access_log-$NOW
/etc/init.d/httpd graceful
sleep 5
tar -cvjf /opt/logbackup/logs-$NOW.bz2 mobile-error_log-$NOW mobile-access_log-$NOW
scp mobile-access_log-$NOW domU-12-31-39-07-75-63:/clt20/uploads/mobilelog/
rm -f mobile-error_log-$NOW mobile-access_log-$NOW

Remember we have exchanged the authentication key between the two servers.

Following command is used for remote syncing of a folder on two remote servers:

/usr/local/bin/rsync -avz -e ssh /opt/www/cms/imagedata/2009/oct/ webdoc@domU-12-31-39-03-09-20:/opt/www/clt20/imagedata/2009/oct/

To rsync a particular file use:

/usr/local/bin/rsync -avz -e ssh /opt/www/clt20/rss.xml webdoc@domU-12-31-39-03-09-20:/opt/www/clt20/

Here is the crontab code:
# start apache on reboot
@reboot mount -t ext3 /dev/sdf /opt/
@reboot /etc/init.d/httpd start
# start mysqld on reboot
@reboot /etc/init.d/mysqld start
*/10 * * * * /usr/bin/php /opt/www/cron/getlivestat.php
10 * * * * /usr/bin/php /opt/www/cron/generaterss.php
25 14 * * * /opt/www/cron/rotatelogs.sh
*/02 * * * * sh /opt/www/cron/imagedata_upload.sh >> /opt/www/cron/imagedataoutput.log

To set crontab for a particular user like webdoc, use command :
crontab -e -u webdoc

Syntax Description:

*     *     *   *    *        command to be executed
-     -     -   -    -
|     |     |   |    |
|     |     |   |    +----- day of week (0 - 6) (Sunday=0)
|     |     |   +------- month (1 - 12)
|     |     +--------- day of        month (1 - 31)
|     +----------- hour (0 - 23)
+------------- min (0 - 59)

Example:
1. Set a crontab to execute a php file everyday at 0:10 am:

10 0 * * * /usr/bin/php /opt/www/html/mpplmatrix/upd_database.php >> /var/log/apache2/matrix_cron.log

%s/\/images\//http:\/\/images.satishgaudo.com\/images\//g

%s/\/js\//http:\/\/images.satishgaudo.com\/js\//g

%s/\/css\//http:\/\/images.satishgaudo.com\/css\//g