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Full Discussion: Read input while another command is running &&
Top Forums Shell Programming and Scripting Read input while another command is running && Post 302901786 by alister on Thursday 15th of May 2014 03:25:02 PM
Old 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 OSX

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)
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