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Full Discussion: Pass Kill with arguments
Top Forums UNIX for Advanced & Expert Users Pass Kill with arguments Post 302188788 by bakunin on Thursday 24th of April 2008 08:53:18 AM
Old 04-24-2008
kill -9 $(cat file)

The $(....) construct spawns a subshell and expands to the output of the shell, much like "$var" would expand to the content of the variable var.

You can even put several commands inside, like here:

Code:
if [ $(some_command >/dev/null ; print - $?) -gt 0 ] ; then
     print - "the return code was greater zero"
else
     print - "the return code was zero"
fi

I hope this helps.

bakunin
 

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LEARN ABOUT MOJAVE

kill.d

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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