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nc -q -1 local host ${PORT} ${CMD}

In Ubuntu, nc may be used as above, with the -q option. See manpage.

-q
after EOF on stdin, wait the specified number of seconds and then quit. If seconds is negative, wait forever.

However, this option is not available in Redhat 5. See manpage. How do I achieve the equivalent of nc -q in Redhat 5?

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1 Answer 1

What do you want that option for? If you explain the use case, maybe we can come up with an alternative.

For example, maybe

while 1; do
    nc localhost ${PORT}
done

is sufficient?

I think the linux.die.net man pages is from RHEL5, but not 100% sure.

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