UNIX for Advanced & Expert Users

Hi,

Grateful if you could advise how to schedule the AIX "topas" command in crontab? Below script works fine at shell prompt. But it does not run via crontab at an AIX Server.

Script: topas_run.sh
export top_file=/oracle/rman_scripts/"topas_run"_`date '+%m_%d_%y_%H_%M_%S'`".txt"
echo >> $top_file
echo >> $top_file
echo "--------------------------------------------------------------------------------" >> $top_file
(sleep 3; echo q)|/usr/bin/topas >> $top_file
echo >> $top_file
echo "--------------------------------------------------------------------------------" >> $top_file


Crontab Entry:
0,1 23 * * * /oracle/rman_scripts/topas_run.sh >> /oracle/rman_scripts/topas_run.txt
35 23 * * * /usr/bin/topas > /oracle/rman_scripts/logfile

Check this out (https://www.unix.com/answers-frequent...n-crontab.html).
Environment invoked by cron is different than when running on shell. The article covers all aspects.

Thank you Zaxxon !!

I tried out as per the tutorial....I am still not able to get output through cron entry. Grateful if any hints or solution to this problem !!

I edited .profile file at AIX server. Its entry is as below
.profile:/
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1
PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:$HOME/bin:/usr/bin/X11:/sbin:.
export PATH=$PATH:/u01/app/oracle/product/10.2.0/db_1/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export TNS_ADMIN=$ORACLE_HOME/network/admin
if [ -s "$MAIL" ] # This is at Shell startup. In normal
then echo "$MAILMSG" # operation, the Shell checks
fi # periodically.
stty erase ^?
env > /tmp/mycommandline.env
. /tmp/mycommandline.env
/.profile

Pasting the called script again
topas_run.sh:/
#!/usr/bin/ksh
. ${HOME}/.profile
PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:/u01/app/oracle/product/10.2.0/bin:/home/oracle/bin:/usr/bin/X11:/sbin:.:/u01/app/oracle/product/10.2.0
/bin ; export PATH
export top_file=/oracle/rman_scripts/"topas_run"_`date '+%m_%d_%y_%H_%M_%S'`".txt"
echo >> $top_file
echo >> $top_file
echo "--------------------------------------------------------------------------------" >> $top_file
(sleep 3; echo q)|/usr/bin/topas >> $top_file
echo >> $top_file
echo "--------------------------------------------------------------------------------" >> $top_file
/topas_run.sh

We assume that this is a root cron.
Suggest you create a one-off cron to run the "env" command once.
The output from this "env" command should be in root mail.
This will tell you your environment when running under cron.
Look at the value of $HOME and $PATH .

Note that $TERM is probably not set. The "topas" command is an interractive screen-based command and will need $TERM set.

An "stty" command issued from cron will fail.

The error output from your failing "topas" crons should be in root mail.
Please post your error messages if any.

The last line of topas_run.sh is "/topas_run.sh". This line is surplus.

Thanks methyl !!

We have tried to schedule "crontab" entry for topas as "oracle" user. It is not root user.
I could not get first 5 lines. could you please write distinctly here please, what should I do & test?

Also, I am new to this forum....wanted to give bluish tinge to the code..hence kept "/topas_run.sh" at the last line. But it failed....))

Thank you very much for sharing your knowledge.

If you type the unix "env" command it shows you the environment variables in your environment when logged in normally.
If you run the "env" command once from cron it shows you the environment when running under cron (which will be quite different). Also this will show you whether cron is working and whether you can find untrapped output from cron jobs in mail. If the cron is under oracle's name the output should be in user oracle's mailbox.