nohup breaks logname and tty commands

[ROTH, MATTHEW G (ATTSI)]

As we are moving from RHEL 4.x to 5.x I noticed that some scripts
started failing.

When I researched this I found that RHEL 4.x used coreutils 5.2.1 and
RHEL 5.x used coreutils 5.97.

In RHEL 4 with coreutils 5.2.1 the following works:

        $ /usr/bin/nohup /usr/bin/logname
        /usr/bin/nohup: appending output to `nohup.out'

        $ cat nohup.out
        mroth

In RHEL 5 with coreutils 5.97 the following does not work:

        $ /usr/bin/nohup /usr/bin/logname
        /usr/bin/nohup: appending output to `nohup.out'

        $ cat nohup.out
        /usr/bin/logname: no login name


I also checked the nohup in the coreutils 6.9 and it has the same
behavior.  The tty command has similar issue, not sure if other commands
are effected as well.

We are able to work around the issues but it creates more
incompatibilities between Linux and the other Unix flavors.

Thanks,


Matthew Roth
AT&T Services, Inc.
1010 Pine Street, Room 8-W-3, Saint Louis, Missouri 63101
(314) 331-9839, address@hidden