QUESTION:
I am trying to run a backup script via cron that runs
the /etc/profile in order to properly setup the PATH. When I run it
under AIX it stops at the stty intr '¬?'. There are two processes
spawned for the stty commands. If I run this script on another system,
it runs fine. Can you tell me why this is ?
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A: Since the script is started by cron there is no terminal associated
with the process. You would normally get a mail message from the cron
daemon with an error message such as "stty: TXGETLD, the specified
device does not exist"; however, if the error messages from
/etc/profile are being sent to /dev/null (". /etc/profile 2>/dev/null"
no mail message will be delivered to the user.
I assume that the script runs fine from the command line as opposed
to being run from cron...
One workaround to this situation would be to place a test similar to
the following around the stty and other terminal related commands in
your /etc/profile. The test shown below will allow the stty commands
and TERM environment variable assignments to be performed only if the
process has a terminal associated with it.
if . -n `tty`.
then
TERMCAP=/usr/informix/etc/termcap;export TERMCAP
#set special chars
stty intr '.?'
stty echoe
stty quit '. '
if . `tty` = "/dev/tty0" .
then
TERM=ibm3151
else
TERM=wyse50
fi
export TERM
fi
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This item was created from library item Q617302 BZCGL
Additional search words:
BZCGL CMD COMMAND CRON EXECUTE FEB93 IX JOB OP PROFILE RISCOSO
RISCSYSTEM RUN SOFTWARE STTY SYS TERM TERMINAL WITHIN
WWQA: ITEM: RTA000028639 ITEM: RTA000028639
Dated: 11/1996 Category: RISCOSO
This HTML file was generated 99/06/24~12:43:10
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