When I run this command (showstatus <username> <dbname>) in the prompt, the following will be displayed in the screen:
1. Show processes
2. Start process
3. Stop process
4. Go back to prompt
Once i choose/type Option "1" (which is Show processes), it will display the list of processes (both running and stopped):
Process1 is running.
Process2 is running.
Process3 is not running.
Process4 is not running.
Process5 is running.
Process6 is running.
It should only continue to do the necessary calculation steps once all these 3 processes: Process3, Process4, and Process5 are up and running.
If any of these is not running, exit and send an email alert to concerned parties.
Can anyone help to devise a script for the above requirement please?
Actually it is an executable file so we can not view the contents.
Basically, when I run this command, it will just display the below messages:
1. Show processes
2. Start process
3. Stop process
4. Go back to prompt
So I was wondering how to store the output of this command as well as the output of Option1 and compare/check if all processes are running. If all are running, I can proceed to the main logic.
After typing the command, you will not see the options, so on faith, you would have to type your '1' to show processes. You may need to then press the '4' to go back to the normal prompt. Some experimenting may be necessary here for those blind responses.
But, if it works as I think it might, the file my_output will be a capture of what would have gone to the display screen.
If that works as hoped / expected, all that remains is to grep the output file for the conditions you specified, and run a conditional based on the result.
Code:
if echo 1 | showstatus username dbname | awk '/Process[345] is not/ { exit 1 }'
then
... all is well
else
... send email
fi
("exit 1" signals a failure condition to if; by default, awk will exit with a return code of 0, which selects the then branch in this conditional.)
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I think showstatus is a script on your computer
Can you try the following?