* mult_ios with "exec"
@ 2015-01-30 9:59 Stephane Chazelas
0 siblings, 0 replies; only message in thread
From: Stephane Chazelas @ 2015-01-30 9:59 UTC (permalink / raw)
To: Zsh hackers list
zsh -c 'exec 3> a 3> b; echo never reached'
That command hangs.
strace shows zsh stuck on:
rt_sigsuspend([INT])
Same with >>, not with < or <> (though I suppose mult_ios
doesn't apply to <> or is equivalent to < there).
Note:
$ zsh -c 'eval exec 3> a 3> b; echo test >&3'
zsh:1: 3: bad file descriptor
(same with other shells (except the Bourne shell)).
zsh -c 'exec 3> >(tee a > b); echo reached'
is OK.
--
Stephane
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