Setting permissions

To give users read/write access to directory:

1. Set the group of all files/folders

   chgrp -R groupname .
   

2. Set all files/folders to be group writeable

   chmod -R g+rw .
   

3. Set the SetGID of all directories (so that any new files inherit the group)

   find . -type d -exec chmod g+s {} \;
   

4. Set the access control list (ACL) so that any new files are writeable by the group:

   setfacl -d -m group:groupname:rwx .
   

   On GPFS file systems, such as the Central, you will need to use mmputacl:

   mmputacl -i aclfile .
   

   where aclfile contains something like:

   #NFSv4 ACL
   #owner:spjbyrne
   #group:hpc_esm
   special:owner@:rw-c:allow:FileInherit
    (X)READ/LIST (X)WRITE/CREATE (X)APPEND/MKDIR (X)SYNCHRONIZE (X)READ_ACL  (X)READ_ATTR  (X)READ_NAMED
    (-)DELETE    (-)DELETE_CHILD (X)CHOWN        (-)EXEC/SEARCH (X)WRITE_ACL (X)WRITE_ATTR (X)WRITE_NAMED
   
   special:owner@:rwxc:allow:DirInherit
    (X)READ/LIST (X)WRITE/CREATE (X)APPEND/MKDIR (X)SYNCHRONIZE (X)READ_ACL  (X)READ_ATTR  (X)READ_NAMED
    (-)DELETE    (X)DELETE_CHILD (X)CHOWN        (X)EXEC/SEARCH (X)WRITE_ACL (X)WRITE_ATTR (X)WRITE_NAMED
   
   special:group@:rw--:allow:FileInherit
    (X)READ/LIST (X)WRITE/CREATE (X)APPEND/MKDIR (X)SYNCHRONIZE (X)READ_ACL  (X)READ_ATTR  (X)READ_NAMED
    (-)DELETE    (-)DELETE_CHILD (-)CHOWN        (-)EXEC/SEARCH (-)WRITE_ACL (-)WRITE_ATTR (-)WRITE_NAMED
   
   special:group@:rwx-:allow:DirInherit
    (X)READ/LIST (X)WRITE/CREATE (X)APPEND/MKDIR (X)SYNCHRONIZE (X)READ_ACL  (X)READ_ATTR  (X)READ_NAMED
    (-)DELETE    (X)DELETE_CHILD (-)CHOWN        (X)EXEC/SEARCH (-)WRITE_ACL (-)WRITE_ATTR (-)WRITE_NAMED
   
   special:everyone@:----:allow
    (-)READ/LIST (-)WRITE/CREATE (-)APPEND/MKDIR (X)SYNCHRONIZE (X)READ_ACL  (X)READ_ATTR  (X)READ_NAMED
    (-)DELETE    (-)DELETE_CHILD (-)CHOWN        (-)EXEC/SEARCH (-)WRITE_ACL (-)WRITE_ATTR (-)WRITE_NAMED