09-08-2009
Depending on what version of sar you have, the -x|X switches are pid specific.
For a process monitor, I'd probably want it to run all the time and then periodically grab the ps output to determine if the process is under|over your thresholds. One large loop with a sleep at the end. Every iteration through the loop would take another snapshot of the state of your processes and make comparisons. You could also store the results of the previous few snapshots calculating averages.
Since you're going through all the work, you could make it more generic than just your specific process (winbind) and pass variables or have a configuration file to monitor any process you like for whatever attribute you like. Have a look at chapter 31 in Expert Shell Scripting for more.
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pid(3tcl) Tcl Built-In Commands pid(3tcl)
__________________________________________________________________________________________________________________________________________________
NAME
pid - Retrieve process identifiers
SYNOPSIS
pid ?fileId?
_________________________________________________________________
DESCRIPTION
If the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid
command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be
empty if fileId refers to an open file that is not a process pipeline. If no fileId argument is given then pid returns the process identi-
fier of the current process. All process identifiers are returned as decimal strings.
EXAMPLE
Print process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline:
set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"]
# Print process information
exec ps -fp [pid $pipeline] >@stdout
# Print a separator and then the output of the pipeline
puts [string repeat - 70]
puts [read $pipeline]
close $pipeline
SEE ALSO
exec(3tcl), open(3tcl)
KEYWORDS
file, pipeline, process identifier
Tcl 7.0 pid(3tcl)