December 2008
Intermediate to advanced
320 pages
6h 45m
English
Content preview from Expert Shell Scripting
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CHAPTER 31Process-Management Monitor
System process monitors can be a vital tool in determining the health of a running machine. Ensuring that the required processes are running and that the total number of each type of running process is appropriate is a good way to maintain system stability. The downside of these types of monitors is that they let you know only which processes are running and how many there are. They don't give you an indication of the health of each individual process.
This script dives a little deeper into the condition of processes. By using the ps command with a customized format, we'll be able to monitor the age, proportion of CPU usage, virtual-memory consumption, and amount of CPU time consumed by a particular process. ...
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