topic Re: Exit from script to a .txt file..It does not work in Operating System - Linux

Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 10:48:02 GMT

Hello everybody
I am developing a script to verify that a process has being executed and I'm sending the exit to a .txt file , the script for some motive not writing this one in the .txt file Someone will be able to help me with this? Please
Thank you

Re: Exit from script to a .txt file..It does not work

spex — Tue, 19 Sep 2006 10:53:28 GMT

Hi Hayse,

#!/usr/bin/sh
program_to_execute
echo $? >> result.txt
exit

PCS

Re: Exit from script to a .txt file..It does not work

James R. Ferguson — Tue, 19 Sep 2006 10:54:32 GMT

Hi:

It would be helpful to post your script. However, in general, all you should need is something like:

# ./myscript; echo $? > ./myscript.returnval

Make sure that you have permission to write into the directory that will hold the file containing the script's return value.

Regards!

...JRF...

Re: Exit from script to a .txt file..It does not work

Peter Godron — Tue, 19 Sep 2006 10:55:13 GMT

Hi,
you can check the status of a script with $?

so:
/usr/sbin/fbackup -nAvf /dev/rmt/0m -s -g $GRAPH_DIR/graph >> $LOG_FILE 2>&1
STATUS=$?
if [ $STATUS != 0 ]
then
echo "error has occurred"
fi

Re: Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 12:45:03 GMT

Thanks
But
When I execute manually the script, the .txt file is update, the script is in a cron, when he script is executed from cron file, the .txt file is not update

Re: Exit from script to a .txt file..It does not work

James R. Ferguson — Tue, 19 Sep 2006 12:58:29 GMT

Hi (again):

Cron's environment is very sparse. That is, all you are provided for a PATH is:

PATH=/usr/bin:/usr/sbin:.

Hence, unless you explicitly declare the PATH and any other variables you need in your script, then that's all you get! Have a look at the 'crontab(1)' manpages for more information.

One other mis-used technique often seen is to source (read) your profile in the crontab before executing your script. This is a poor choice for a variety of reasons. I suggest that you declare all of the environmental variables you need either in your script or in a file that you source (read) in your script.

Regards!

...JRF...

Re: Exit from script to a .txt file..It does not work

spex — Tue, 19 Sep 2006 13:07:43 GMT

Hayse,

If you are comfortable with supplying your script, I'm sure we can point out the exact error.

PCS

Re: Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 13:16:53 GMT

Hi, this is the content of my script...
HORA=$(date)
echo $HORA > file.txt
ps -ef | grep -v grep | grep svr > /dev/null 2> /dev/null
if [ "$?" -eq 0 ]
then
echo "================" >> file.txt
echo " Executing " >> file.txt
echo "===================" >> file.txt

else
echo "===============" >> file.txt
echo "NOT Executing " >> file.txt
echo "===============" >> file.txt
su - user -c "/home/user/start_service.sh"

fi
exit

Re: Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 13:20:18 GMT

Ahhh
My script first line:
#!/bin/sh

Re: Exit from script to a .txt file..It does not work

Chris Hendrick_2 — Tue, 19 Sep 2006 13:45:17 GMT

I believe a line like this at the start of the script (after setting the variables) will work:

exec > $LOG_FILE 2>&1

That will write std out and std err to $LOG_FILE

Hope that helps.

Re: Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 15:21:55 GMT

Thanks all of you...
I solved the problem
A little detail with PATH

Bye and Thanks
; )

Re: Exit from script to a .txt file..It does not work

hboo — Tue, 19 Sep 2006 15:22:47 GMT

Regards

Re: Exit from script to a .txt file..It does not work

Dennis Handly — Tue, 19 Sep 2006 19:22:39 GMT

>ps -ef | grep -v grep | grep svr > /dev/null 2> /dev/null

There is no need to redirect the grep output to /dev/null if you use grep -q.