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Top Forums Shell Programming and Scripting Help with Backup Shell Script Post 302555165 by harry289 on Wednesday 14th of September 2011 04:41:21 AM
Old 09-14-2011
hi pludi,

as I mention earlier, I dont have any knowledge on scripting and I understand that its a mandatory that a linux admin must be aware of any 1 scripting lang. I have started learning the basics of shell scripting just couple of days back.

For taking internal backups, I came up with 2 scripts

1)

Code:
 /bin/scripts/back.sh
   
  #! /bin/bash
  echo Backup Started `date` >> ~/backuplog
  mkdir /tempstorage/`date +%Y%m%d`
  tar -czf /tempstorage/`date +%Y%m%d`/cloud.tar.gz /cloud
  echo Backup Completed `date` >> ~/backuplog

I was advised to use variables from my Senior

2)

Code:
#!/bin/sh

# What to backup.
backup_files="/tmp"

# Where to backup to.
dest="/backup"

# Create archive filename.
day=$(date +%A)
hostname=$(hostname -s)
archive_file="$hostname-$day.tgz"

# Print start status message.
echo "Backing up $backup_files to $dest/$archive_file"
date
echo

# Backup the files using tar.
tar czf $dest/$archive_file $backup_files

# Print end status message.
echo
echo "Backup finished"
date

# Long listing of files in $dest to check file sizes.
ls -lh $dest

Since its an urgent task and I am suppose to complete my task in next 2 days, I dont have much time to learn it and write, Can you please help me out this time, so that I will start learning them perfectly from scratch. I am just starting with the book "Learning the bash Shell: Unix Shell Programming... by Cameron Newham" please do advice if there are any other good book for beginners (who dont have programming knowledge earlier).

thanks

Last edited by pludi; 09-14-2011 at 05:50 AM..
 

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BDB.DB0(5)							AFS File Reference							BDB.DB0(5)

NAME
       bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log

DESCRIPTION
       The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross-
       indexed records of the tapes created and volumes dumped using the Backup System commands.

       The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an
       operation is interrupted, the Backup Server replays the log to complete the operation.

       Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup
       Server.	When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its
       copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database
       technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number.

       Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape
       on a regular basis, using the UNIX tar command or another local disk backup utility.

SEE ALSO
       backup(8), backup_savedb(8), buserver(8)

COPYRIGHT
       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26								BDB.DB0(5)
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