Getting an strace sample programmatically (non-interactively)

Getting an strace sample programmatically (non-interactively): dynamically attaching to a running process and detaching from it 10 seconds later.  May be used to check if a process is hung, or what is it doing?

 

#!/bin/sh

…

rm -rf strace.out

strace  -o strace.out -p $PID &

sleep 10

pkill -int strace  # send SIGINT to strace process; this will make it detach, clean up, and exit.

STRACE_OUT=`cat $STRACE.OUT`

…