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Wait for other process to finish (See related posts)

# There's another process you want to wait on.  In this example,
# you know the pid, and it's contained in the file $PID_FILE.
while ps -p `cat $PID_FILE` > /dev/null; do sleep 1; done

# Now you can continue knowing that process has finished...
to linux unix bash shell by beek on Mon Aug 08 07:40:38 -0400 2005

Comments on this post

Quaestor posts on Jun 19, 2007 at 07:21
If the process is a child of the current shell, just use
wait $pid


Otherwise, use 
kill -0 $pid >/dev/null
.

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