05-15-2014
Quote:
Originally Posted by
cnamejj
If you want to keep the current logic, where you hit "q" to stop and that also stops the "tshark", then you need to do something more sophisticated.
You'll have to run "tshark" as a background process, capture the PID in the shell script, then if "q" is entered kill that PID before exiting.
If the entire script is one logical task, then the simplest solution is to use
kill 0 to terminate the entire process group.
Regards,
Alister
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LEARN ABOUT MOJAVE
pridist.d
pridist.d(1m) USER COMMANDS pridist.d(1m)
NAME
pridist.d - process priority distribution. Uses DTrace.
SYNOPSIS
pridist.d
DESCRIPTION
This is a simple DTrace script that samples at 1000 Hz which process is on the CPUs, and what the priority is. A distribution plot is
printed.
With priorities, the higher the priority the better chance the process (actually, thread) has of being scheduled.
This idea came from the script /usr/demo/dtrace/profpri.d, which produces similar output for one particular PID.
Since this uses DTrace, only users with root privileges can run this command.
EXAMPLES
This samples until Ctrl-C is hit.
# pridist.d
FIELDS
CMD process name
PID process ID
value process priority
count number of samples of at least this priority
BASED ON
/usr/demo/dtrace/profpri.d
DOCUMENTATION
DTrace Guide "profile Provider" chapter (docs.sun.com)
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
pridist.d will sample until Ctrl-C is hit.
SEE ALSO
dispadmin(1M), dtrace(1M)
version 0.90 Jun 13, 2005 pridist.d(1m)