SVN for /etc

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Subversion also known as SVN is a version control system. Normally users 'checkout' data from a central repository to a local 'working copy'. However it can be setup to allow version control for files /etc .

Installation

sudo svnadmin create /svn
sudo chmod -R go-rwx /svn/
sudo svn mkdir file:///svn/etc -m"creating empty dir for svn"
cd /etc
sudo svn checkout file:///svn/etc .
sudo rm -R .svn/
sudo svn checkout file:///svn/etc .
sudo svn add *
sudo svn commit -m"initial commit of /etc"
This creates an SVN repository /svn/etc with the working copy being /etc itself. Edit files as would be done normally and 'commit' them to the repository to allow them to be version-controlled:
sudo svn commit file
To revert a file back to a previous revision for instance:
sudo svn update -r 2 hosts

See Also

http://ariejan.net/2007/07/04/how-to-resolve-subversion-conflicts/

http://svnbook.red-bean.com/en/1.2/svn.branchmerge.commonuses.html#svn.branchmerge.commonuses.undo

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