Please help with monitoring stuff Post: 302390569

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Top Forums Shell Programming and Scripting Please help with monitoring stuff Post 302390569 by sunilmenhdiratt on Thursday 28th of January 2010 09:54:04 AM

01-28-2010

Registered User

Please help with monitoring stuff

Hi,

I am trying to write a script to do monitoring kind of stuff,

requirement - when a server is given a start it updates a file called server.log, I need to keep on grepping the word "Running" and as soon as it comes , script should be exited with the message , "Server came up successfully else it shoud wait for "Running" untill 7 minuts, and then should time out with the message "script timed out"

My idea is to use tail -f server.log | grep "Running" , but im not sure how will this exit because tail will wait for the input into server.log

for timinig out I think best I can use is sleep

so it shoud be

Code:

 
while ( i < 420 )
do 
   tail -f server.log | grep "Running"   //(the problematic area)
   if [ $? == 0 ]
    then   
           echo "Server came up succesfully"
           exit 0
i++
done
echo "script timed out"

PLease suggest. if my logic is wrong or i have placed wrong commands.

Last edited by Scott; 01-28-2010 at 11:57 AM.. Reason: Code tags, please...

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nislog

nislog(1M)						  System Administration Commands						nislog(1M)

NAME

       nislog - display the contents of the NIS+ transaction log

SYNOPSIS

       /usr/sbin/nislog [-h num | -t num]  [-v] [directory...]

DESCRIPTION

       nislog  displays  the  contents of the NIS+ server transaction log on the standard output. This command can be used to track changes in the
       namespace. The /var/nis/trans.log file contains the transaction log maintained by the NIS+ server. When updates occur, they are	logged	to
       this  file  and	then  propagated  to replicas as log transactions.  When the log is checkpointed, updates that have been propagated to the
       replicas are removed.

       The nislog command can only be run on an NIS+ server by superuser. It displays the log entries for that server only.

       If directory is not specified, the entire log is searched. Otherwise, only those logs entries that correspond to the specified  directories
       are displayed.

OPTIONS

       -h num	       Display num transactions from the ``head'' of the log. If the numeric parameter is  0, only the log header is displayed.

       -t num	       Display	num transactions from the ``tail'' of the log. If the numeric parameter is  0, only the log header is displayed.

       -v	       Verbose mode.

FILES

       /var/nis/trans.log      transaction log

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnisu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       nis+(1), rpc.nisd(1M), nisfiles(4), attributes(5)

NOTES

       NIS+  might  not  be  supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from NIS+ to LDAP are
       available in the Solaris 9 operating environment. For more information, visit http://www.sun.com/directory/nisplus/transition.html.

SunOS 5.10							    12 Dec 2001 							nislog(1M)