Simple ksh question

[Jason Berendsen]

I am opening a file and reading it in with the following two lines:
exec 3< ${DIR}/extract.tmp
while read -u3 LINE

Unfortunately, I can't remember how to close this file descriptor. Does anyone know how?

Thanks,

Jason

[Rodney Hills · Accepted solution]

The man page for ksh states-

exec 3<&-

should work.

HTH

-- Rod Hills

[Jean-Louis Phelix]

hi,

Perhaps "exec 3<&-"

Regards.

[Bill Thorsteinson]

It should closed when the process closed. You can also close it by redirecting &- to it.

Try executing someting in the current shell like:
. /dev/null 3<&-