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Re: expansion and redirections
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From: |
Greg Wooledge |
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Subject: |
Re: expansion and redirections |
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Date: |
Thu, 3 Oct 2013 17:28:38 -0400 |
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User-agent: |
Mutt/1.4.2.3i |
On Wed, Oct 02, 2013 at 05:25:47PM +0300, Telychko wrote:
> $exec 3</dev/zero # open /dev/zero on 3
> $VAR=3 # have some variable with file descriptor
> $exec $VAR<&- # trying to close previously opened file descriptor
> bash: exec: 3: not found
What you want is:
eval "exec $VAR<&-"