Re: implicit redirection of background within pipeline

[Andreas Schwab]

Martin Kealey <martin@kurahaupo.gen.nz> writes:

> What do other shells do? Ksh? Dash? Zsh?

$ ksh -c 'printf "foo1\nfoo2\n" | { (read x; echo 1: $x) & (read x; echo 2: $x) 
& }'
1: foo1
2: foo2
$ dash -c 'printf "foo1\nfoo2\n" | { (read x; echo 1: $x) & (read x; echo 2: 
$x) & }'
1:
2:
$ zsh -c 'printf "foo1\nfoo2\n" | { (read x; echo 1: $x) & (read x; echo 2: $x) 
& }'
1: foo1
2: foo2
$ bash -c 'printf "foo1\nfoo2\n" | { (read x; echo 1: $x) & (read x; echo 2: 
$x) & }'
1:
2: foo1

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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"And now for something completely different."