projects - persistent project root defintion
The /etc/projects file provides a mapping between numeric project
identifiers and those directories 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) can be used
with the -p argument to specify a project root directly for each
operation.
xfs_quota(8), xfsctl(3), projid(5).
projects(5)