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Simple issue, what is wrong?

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Top Forums Shell Programming and Scripting Simple issue, what is wrong?
# 8  
Old 12-06-2010
ps will only show you the current processes, it will NOT tell you whether the database accept new connections or not.
This User Gave Thanks to ctsgnb For This Post:
jeffs42885
# 9  
Old 12-06-2010
When I grep for the one process, that is all that we need to show that the database is accepting new connections.

Normally, if you do a ps -ef | grep <process> it brings back a bunch of running processes.

Code:
root  221352  581886   0   Nov 21      -  0:46 process-database: db (idle) 
    root  262310  581886   0   Nov 21      -  0:37 process-database: db (idle) 
    root  290860  581886   1   Nov 21      -  0:41 process-database: db (idle) 
    root  553002  581886   0   Nov 21      -  0:46 process-database: db (idle) 
    root  581886       1   0   Nov 21      -     0:05 process-database: (accepting)

If I do this command..
Code:
ps -ef | grep '[p]rocessd.*(accepting)

It returns what I am looking for

---------- Post updated at 03:14 PM ---------- Previous update was at 11:45 AM ----------

I did my best to clean up the code. Can anyone help with including a for loop in this. It needs to run 5 times (If the first argument is false and the database isnt accepting connections) If it gets past the first part it can just run then.

Code:
 
database=$(ps -ef | grep '[d]atabase.*(accepting)' | awk '{ print $2}')
if [ -n "$database" ]
 then
      echo "The database is accepting connections"
 
  process=$(ps -ef | grep [p]rocess | awk '{ print $2}')
   if [ -n "$process" ]
    then
         
         echo "Start  Automated Processes"
          ###START OTHER SCRIPT###
    else
          echo "Start Processe".
          cd /home/user/dir/process
          sleep 10
          ###START OTHER SCRIPT###
   fi

   
 else
      echo "The database is not accepting connections..."
  sleep 30
 
fi
 
done

# 10  
Old 12-07-2010
Wrench
The sleep 30 seems useless, as well as the done
Or you miss the while loop ?

By the way, since you only test $database and $process value to know if they are empty or not, i don't see the use of the | awk '{...}' stuff

You could just use such kind of condition (this is just an example, adapt it to your needs) :

Code:
if ( grep [d]atabase.*accepting <(ps -ef) >/dev/null 2>&1 )
then
    echo "Process 'accepting' found"
else
    echo "Process 'accepting' not found"
fi

Last edited by ctsgnb; 12-07-2010 at 05:16 AM..
# 11  
Old 12-07-2010
Thank you all for the help. Turns out, I had a bunch of carriage returns in my code which were causing issues.
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