GPFS: Administration and Programming Reference - IRA Home

#owner:guest
#group:usr
user::rwxc
group::rwx- #effective:rw--
other::--x-
mask::rw-c
user:alpha:rwxc #effective:rw-c
group:audit:rwx- #effective:rw--
group:system:-w--
Although you can issue the mmputacl command without using the -i option to specify an ACL input file,
and make ACL entries through standard input, you will probably find the -i option more useful for avoiding
errors when creating a new ACL.
See the “mmputacl Command” on page 233 and the “mmgetacl Command” on page 185 for complete
usage information.
Displaying traditional GPFS access control lists
Use the mmgetacl command to display the access ACL of a file or subdirectory, or the default ACL of a
directory. For example, to display the ACL for the file project2.history, enter:
mmgetacl project2.history
The information sent to standard output is similar to:
#owner:guest
#group:usr
user::rwxc
group::rwx- #effective:rw--
other::--x-
mask::rw-c
user:alpha:rwxc #effective:rw-c
group:audit:rwx- #effective:rw--
group:system:-w--
The first two lines are comments displayed by the mmgetacl command, showing the owner and owning
group. All entries containing permissions that are not allowed (because they are not set in the mask entry)
display with a comment showing their effective permissions.
See the “mmgetacl Command” on page 185 for complete usage information.
Applying an existing traditional GPFS access control list
To apply the same traditional ACLs from one file or directory to another:
1. Issue the mmgetacl command with the -o option to place the information in an output file.
2. Apply the ACLs to the new file or directory by issuing the mmputacl command with the -i option.
For example, use the -o option to specify a file to which the ACL is written:
mmgetacl -o old.acl project2.history
Then, to assign the same permissions to another file, project.notes, enter:
mmputacl -i old.acl project.notes
To confirm the changes, enter:
mmgetacl project.notes
The information sent to standard output is similar to:
#owner:guest
#group:usr
user::rwxc
Chapter 6. Managing GPFS access control lists and NFS export 47