Rsync better use for backup Post: 302787363

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Top Forums Shell Programming and Scripting Rsync better use for backup Post 302787363 by ajayram on Friday 29th of March 2013 09:26:56 AM

03-29-2013

Registered User

Rsync better use for backup

Hello,

I have a list of working directory in a remote computer acesssible through ssh and the same directory structure in my home directory of my laptop. I sometimes work on both my laptop and my this other computer.

I usually use Rsync this way to synchronize files

Code:

rsync remotehost@remoteDirectory -auzv /local Directory 
rsync -auzv  /local Directory  remotehost@remoteDirectory

I run both of these as a shell script

This seems to work fine, but the problem that I face is that if I edit a file's nae in the local Host. or delete a file in the remote Host then when I execute these two commands, I get the old files + the new files in both places.

Thus before doing rsync, I would like to (say use ls and diff) to find out which files are not present in the Local Directory but present in the Remote Directory and which files vice versa.

Then I can check for those files, delete them or not, and then do these rsync commands.

If its possible to automate these things, with some better shell scripting than just simple rsync ?

also I want to know how useful is Crontab for these kinds of work. , or can I make Crontab run when both machines are on at a particular point of time in the day / week ?

ajayram

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LEARN ABOUT DEBIAN

svn-fast-backup

svn-fast-backup(1)					      General Commands Manual						svn-fast-backup(1)

NAME

       svn-fast-backup - very fast backup for Subversion fsfs repositories.

SYNOPSIS

       svn-fast-backup [-q] [-k{N|all}] [-f] [-t] [-s] repos_path backup_dir

DESCRIPTION

       svn-fast-backup uses rsync snapshots for very fast backup of a Subversion fsfs repository at repos_path to backup_dir/repos-rev, the latest
       revision number in the repository.  Multiple fsfs backups share data via hardlinks, so old backups are almost free, since a newer  revision
       of a repository is almost a complete superset of an older revision.

       This  is  good for replacing incremental log-dump+restore-style backups because it is just as space-conserving and even faster; there is no
       inter-backup state (old backups are essentially caches); each backup directory is self-contained.  It has the same  command-line  interface
       as svn-hot-backup(1) (if you use --force), but only works for fsfs repositories.

       svn-fast-backup keeps 64 backups by default and deletes backups older than these; this can be adjusted with the -k option.

OPTIONS

       -h, --help
	      Shows some brief help text.

       -q, --quiet
	      Quieter-than-usual operation.

       -k, --keep=N
	      Keep a specified number of backups; the default is to keep 64.

       -k, --keep=all
	      Do not delete any old backups at all.

       -f, --force
	      Make a new backup even if one with the current revision exists.

       -t, --trace
	      Show actions.

       -s, --simulate
	      Don't perform actions.

AUTHOR

       Voluntary contributions made by many individuals.  Copyright (C) 2006 CollabNet.

								    2006-11-09							svn-fast-backup(1)