From 3bdf4d6641fb34d1c2f130abddb847169a793afe Mon Sep 17 00:00:00 2001
From: Peter Stephenson
Date: Tue, 2 Jul 2019 13:42:53 +0100
Subject: 44480: Don't automatically close externally visible file descroptors.
These are descriptors marked FDT_EXTERNAL.
Make all sysopen'ed file descriptors FDT_EXTERNAL.
Make =(...) call closem() consistent with other substitutions.
Document file descriptors are left open.
---
Doc/Zsh/redirect.yo | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'Doc/Zsh/redirect.yo')
diff --git a/Doc/Zsh/redirect.yo b/Doc/Zsh/redirect.yo
index 7e38cd0c3..13496d8d3 100644
--- a/Doc/Zsh/redirect.yo
+++ b/Doc/Zsh/redirect.yo
@@ -182,7 +182,8 @@ indent(... tt({myfd}>&1))
This opens a new file descriptor that is a duplicate of file descriptor
1 and sets the parameter tt(myfd) to the number of the file descriptor,
which will be at least 10. The new file descriptor can be written to using
-the syntax tt(>&$myfd).
+the syntax tt(>&$myfd). The file descriptor remains open in subshells
+and forked external executables.
The syntax tt({)var(varid)tt(}>&-), for example tt({myfd}>&-), may be used
to close a file descriptor opened in this fashion. Note that the
--
cgit 1.4.1