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Description of problem:
Tasks scheduled with at are not done. 
Instead, a file named "2"
appears in the working directory.
The mail with the output of the scheduled task is send, but the content
of the mail is compose of error messages described below

Version-Release number of selected component (if applicable):
at-3.1.8-46.1

How reproducible:
Always

Steps to Reproduce:
1. Run a progran inside at:
prompt$ at now
at> ls
at> Crtl-D

Actual Results:  A file named 2 appears in the working directory. to
see the contente of the file I make
prompt$ cat 2
Execution directory inaccessible
prompt$

A mail is sent to me, the content of the mail is:

USER=hare: Command not found.
export: Permission denied.
LOGNAME=hare: Command not found.
export:Permission denied.
HOME=/home/hare: Command not found.
export: Permission denied.
PATH=/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:.:
Command not found.
export: Permission denied.
VENDOR=intel: Command not found.
export: Permission denied.
OSTYPE=linux: Command not found.
export: Permission denied.
MACHTYPE=i386: Command not found.
export: Permission denied.

And follows with more enviroment variables


Expected Results:  A mail is send to me with the output of the ls
program in the present working directory

Additional info:

In the version of at shiped with redhat 9, a meesage appeared
before the at prompt: 
"warning: commands will be executed using (in order) a) $SHELL b)
login shell c) /bin/sh"

This message has disappeared in the present version