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From: peter@aucs.AcadiaU.ca (Peter Steele)
Newsgroups: comp.unix.shell
Subject: How to do non-blocked I/O?
Message-ID: <1991Jun5.114741.8167@aucs.AcadiaU.ca>
Date: 5 Jun 91 11:47:41 GMT
Article-I.D.: aucs.1991Jun5.114741.8167
Reply-To: peter@aucs.acadiau.ca (Peter Steele)
Distribution: na
Organization: School of Computer Science, Acadia Univ., Nova Scotia
Lines: 11

I want to modify our system startup scripts to ask a question like

    Okay to bring up databases (y/n)?

and if there is no reply within, say 5 seconds, assume "y". Can
I do this from sh or csh or do I have to write a C program to
do the I/O? If a C program is required, can someone point me
to the best reference on how to do non-blocking I/O? Thanks.
-- 
Peter Steele  Postmaster  peter.steele@acadiau.ca   Tel: 902-542-2201
Software Analyst, Acadia University, Wolfville, NS  Fax: 902-542-7224