On Wed, 9 Oct 2013, Xabier Oneca -- xOneca wrote:
>
> I am new here, in the list.
>
> I wonder if 'read' can read from pipes, because the following should
> print 'testing' but instead 'got' remains undefined...
>
> $ echo testing | read got
> $ echo $got
In your example, variable $got exists only in a subshell.
Are these examples enough to explain why?
$ { echo main shell >&2; echo testing; } | { read got; echo "subshell: $got"
>&2; }; { echo main shell >&2; echo $got; }
This should as you expect it to.
$ read got <<-EOF
$(echo testing)
EOF
$ echo $got
testing
Cheers,
--
Cristian
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