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Hi,

I was checking Cluster version in Redhat cluster with clustat -v command.

In redht 6 , I get the version as 3.0.12.1

But when i tried the same in RHEL5.4 , I get the version as "DEVEL"...

Not just the first time. tail -f will always look for updated tail lines of that log file. So once an error is 'grep'ed, it will check for the error only in new updated lines.

We redirect the...

Very new to unix. So please correct me if i am wrong.

use tail -f to get the tail lines of the log file. Grep the error string from those lines. If there is an error, send an email.