My original question was "how do I see who wrote a file last, not just
when."
Thanks to:
lrs_at_zk3.dec.com
Alan Davis
Allen Carpenter
Kurt Carlson
I take my hat off to lrs_at_zk3.dec.com for pointing out my error:  audit in
fact logs whether a file is opened read only, or read-write.  This solved my
problem as the ruid and euid are logged (see below).
Harold Gabel
MCI WorldCom Systems Administrator
----snip----
lrs_at_zk3.dec.com wrote:
The open audit record includes information on the open "mode" - read, 
write, trunc, creat, sync, excl, append, ....
    audit_id:    1124          ruid/euid:   1124/1124
    pid:         4278          ppid: 4273                 cttydev: (6,2)
    event:       open
    char param:  /etc/motd
    flags:       1537 : write trunc creat
    inode id:    7990          inode dev:   (19,81)       [regular file]
    object mode: 0644          
    req mode:    0600
    result:      3 (0x3)
    ip address:  
    timestamp:   Tue Jun 15 11:32:36.95 1999 EDT
    1124:1124:1124    4278   0x3                open ( /etc/motd 0x601 0600
)
Received on Tue Jun 15 1999 - 21:32:54 NZST