something waiting for input? even ls can hang if it cannot determine the terminal size (but ls -1 does not), quite a few commands can suffer from this actually (top is another good example)

if you vary $prog what does happen? e.g try '/bin/ksh -c echo aa' with appropriate redirects

hth --stephan

In reply to Re: script hangs after executing program by sgt
in thread script hangs after executing program by jeanluca

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