Yet Another bourne shell query

[Paul Chamberlain/32767]

In article <437 at minya.UUCP> jc at minya.UUCP (John Chambers) writes:
>I basically want to write something like:
>	if [ <file 0 is open> ];then exec</dev/null;fi

This seems to work:

	if read x
	then : okay
	else
		exec < /dev/null
	fi

I hope you're not going to all this trouble to use /dev/null though.

Paul Chamberlain | I do NOT represent IBM         tif at doorstop, sc30661 at ausvm6
512/838-7008     | ...!cs.utexas.edu!ibmaus!auschs!doorstop.austin.ibm.com!tif