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Full Discussion: Optimize code in single line
Top Forums UNIX for Beginners Questions & Answers Optimize code in single line Post 303044673 by shanul karim on Sunday 1st of March 2020 01:44:31 AM
Old 03-01-2020
Optimize code in single line
Dear team,


The below code is to check if number of lines in file greater than two then status is not ok else status is ok.
I need to optimize it in single line code in awk or sed if possible.


Pls help


Code:
cat LOTCCLUS_stat
count=`cat LOTCCLUS_stat | wc -l`
if [[ $count -gt 2 ]]; then

echo "##### THE LOTC cluster state IS NOK ##########"
else
echo "##### THE LOTC cluster state IS OK  ##########"
fi


The file as below

Quote:
cat LOTCCLUS_stat
Checking LOTC cluster state:...
-------------------
Node safNode=SC_2_1 fail cluster | Wed Dec 5 17:03:33 2018
 

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LEARN ABOUT DEBIAN

clusvcadm

clusvcadm(8)						       Red Hat Cluster Suite						      clusvcadm(8)

NAME

       clusvcadm - Cluster User Service Administration Utility

SYNOPSIS

       clusvcadm [-d <service> ] [-e <service> ] [-l] [-u] [-S] [-m <member> ] [-r <service> ] [-R <service> ] [-M <service> ] [-Z <service> ] [-U
       <service> ] [-s <service> ] [-v]

DESCRIPTION

       The clusvcadm command allows an administrator to enable, disable, relocate, and restart user services in a cluster.  In	order  to  perform
       cluster service operations, the cluster daemons must be running (and have quorum) on the member system on which the command is invoked.

OPTIONS

       -d <service>
	      Stops and disables the user service named service

       -e <service>
	      Enables and starts the user service named service

       -l     Lock services in preparation for cluster shutdown.  This should only be used if the administrator intends to perform a global, clus-
	      ter wide shutdown.  This prevents services from starting (but not stopping, like -Z does).  Once the cluster  quorum  is	dissolved,
	      this state is reset.  If a new instance of rgmanager boots while others are locked, the behavior is undefined.

       -u     Unlock resource group managers.  This allows services to start again.

       -S     Display  whether	the  resource group managers are locked or not.  This can be used to verify the correct operation of the -l and -u
	      options, but is only useful for debugging.

       -m <member>
	      When used in conjunction with either the -e or -r options, this specifies the preferred target member on which to start the service.

       -r <service>
	      Relocates the user service named service to another cluster member.

       -R <service>
	      Restarts the user service named service on the cluster member on which it is currently running.

       -M <service>
	      Use a special "migration" operation to move the user service named service to another cluster member.  Currently, this is only  use-
	      ful  for virtual machines.  Use of migration usually requires special configuration of the local virtual machine manager in order to
	      work correctly.

       -Z <service>
	      Freezes the service named service on the cluster member on which it is currently running.  This will prevent status  checks  of  the
	      service as well as failover in the event the node fails or rgmanager is stopped.

       -U <service>
	      Unfreezes the user service named service on the cluster member on which it is currently running.	This will re-enable status checks.

       -s <service>
	      Stops the service named service until a member transition or until it is enabled again.

       -v     Display version information and exit.

NOTES

       Executing  -U (unfreeze) on a service which was frozen in the started state while the service owner is offline results in an undefined (and
       possibly dangerous) condition.  Manually ensure all resources are clear before doing this.

SEE ALSO

       clustat(8)

								     Jan 2005							      clusvcadm(8)
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