# phpman > man > projects(5)

[projects(5)](https://www.chedong.com/phpMan.php/man/projects/5/markdown)                              File Formats Manual                             [projects(5)](https://www.chedong.com/phpMan.php/man/projects/5/markdown)



## NAME
       projects - persistent project root definition

## DESCRIPTION
       The  _/etc/projects_  file provides a mapping between numeric project identifiers and those di‐
       rectories which are the roots of the quota tree.  Its format is simply:


            # comments are hash-prefixed
            # ...
            10:/export/cage
            42:/var/log

       The _/etc/projects_ file is optional, instead **xfs**___**[quota**(8)](https://www.chedong.com/phpMan.php/man/quota/8/markdown) can be used with the **-p** argument  to
       specify a project root directly for each operation.


## SEE ALSO
       **xfs**___**[quota**(8)](https://www.chedong.com/phpMan.php/man/quota/8/markdown), [**xfsctl**(3)](https://www.chedong.com/phpMan.php/man/xfsctl/3/markdown), [**projid**(5)](https://www.chedong.com/phpMan.php/man/projid/5/markdown).



                                                                                         [projects(5)](https://www.chedong.com/phpMan.php/man/projects/5/markdown)