4 ms·
It's not quite the same as `cp -r`. Tar will create the directories if necessary, but it will also drop the files into an existing folder hierarchy. So you coul
by pjungwir 11y ago
It's not quite the same as `cp -r`. Tar will create the directories if necessary, but it will also drop the files into an existing folder hierarchy. So you could use it to create/update a few entries in an existing tree of files. For instance you could deploy updates to a website like this (locally):
cd ~/src/mysite && tar cf - . | (cd /var/www/public_html && tar xvf -)
or this (remotely):
cd ~/src/mysite && tar czf - . | ssh mysite 'tar xvzf - -C /var/www/public_html'
I would probably actually use rsync for this, but there have been times the tar approach came in handy.
A long time ago, in the dark ages of version control, I used to use tar for rollback-able deployments: I would create a tarball of the files in development to be deployed, and I would create a tarball of the files in production to be overwritten. Then I could just explode one tarball to deploy and the other to rollback. Not something I'd do today, but we didn't always have such nice tools. :-)