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Full Discussion: Comparing PIDs in a Shell...
Top Forums Shell Programming and Scripting Comparing PIDs in a Shell... Post 302172531 by vino on Tuesday 4th of March 2008 03:43:55 AM
Old 03-04-2008
Quote:
Originally Posted by marconi
Hi,

There is a file having a list of running PIDs (pid_process) and another file having a list of registered PIDs (pid_regieter).

I want to check if:-

a) there is at least one running PID that does not correspond to a
registered PID (listing the PID not registered in the file)

b) there is at least one registered PID that doesn't correspond to a running
PID (listing the PID missing).

Any inputs please.

Thanks a lot in advance.
Are those PID's sorted ? If then

Code:
comm -3 pid_process pid_regieter

See man comm for more details.
 

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kill.d(1m)							   USER COMMANDS							kill.d(1m)

NAME
kill.d - snoop process signals as they occur. Uses DTrace. SYNOPSIS
kill.d DESCRIPTION
kill.d is a simple DTrace program to print details of process signals as they are sent, such as the PID source and destination, signal num- ber and result. This program can be used to determine which process is sending signals to which other process. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
Default output, print process signals as they are sent. # kill.d FIELDS
FROM source PID COMMAND source command name TO destination PID SIG destination signal ("9" for a kill -9) RESULT result of signal (-1 is for failure) DOCUMENTATION
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
kill.d will run forever until Ctrl-C is hit. AUTHOR
Brendan Gregg [Sydney, Australia] SEE ALSO
dtrace(1M), truss(1) version 0.90 May 14, 2005 kill.d(1m)
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