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Coprocess FD not available when duplicated to FD other than 1 or 2
From: |
lolilolicon |
Subject: |
Coprocess FD not available when duplicated to FD other than 1 or 2 |
Date: |
Wed, 19 Oct 2016 20:24:55 +0800 |
The following correctly prints "fd=2":
coproc p { head -1; }
2>&${p[1]} bash -c 'echo fd=2 >&2'
cat <&${p[0]}
Change 2 to 3, throws error: "bash: 3: Bad file descriptor":
coproc p { head -1; }
3>&${p[1]} bash -c 'echo fd=3 >&3'
cat <&${p[0]}
I'm not very familiar with redirection, so I may have overlooked
something obvious...
What am I missing?
- Coprocess FD not available when duplicated to FD other than 1 or 2,
lolilolicon <=