z/OS UNIX System Services › Manage UNIX with UNIXPRIV Class Profiles › Specify the Group Owner for New UNIX Files

Specify the Group Owner for New UNIX Files

When a new UNIX file is created:

• The owning UID is initialized from the effective UID of the creating process
• The owning GID is copied from the parent directory

The POSIX standard allows the owning GID to be taken from either the parent directory or the effective GID of the creating process.

To specify that the group owner of a new UNIX file comes from the effective GID of the creating process, define the FILE.GROUPOWNER.SETGID resource in the UNIXPRIV class.

To set up the FILE.GROUPOWNER.SETGID resource enter:

TSS ADD(UNIXDEPT) UNIXPRIV(FILE.GROUPOWNER.SETGID)

To specify that the group owner of new objects within the file system comes from the parent directory, turn on the set-gid bit of its root directory when a new file system is mounted.