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=== Copy including hidden files ===
== Copy including hidden files ==
* ''Last tested on Ubuntu 14.04.2 LTS (trusty)''
* ''Last tested on Ubuntu 14.04.2 LTS (trusty)''
<source lang="bash" highlight="1">
<source lang="bash">
$ cp -r folder1/. target/
$ cp -r folder1/. target/
</source>
== Setting a default group for a folder ==
* ''Last tested on Ubuntu 16.04 LTS (xenial)''
This is to set permission for an '''existing''' folder for collaboration.  This assumes the group name to be <span class="package">dev</span>, and the folder to be <span class="shell">/srv/www/project</span>.
This sets <code>setgid</code> bit on the folder.
<source lang="bash">
$ sudo find /srv/www/project -type d -exec chgrp dev {} +
$ sudo find /srv/www/project -type d -exec chmod g+s {} +
</source>
Make it writable by the group.
<source lang="bash">
$ sudo chmod -R g+w /srv/www/project
</source>
These commands should be executed for a '''new''' folder.
<source lang="bash">
$ sudo chgrp dev /srv/www/project
$ sudo chmod g+s /srv/www/project
</source>
</source>