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Re: Builtin 'read' data not saved
From: |
Davide Brini |
Subject: |
Re: Builtin 'read' data not saved |
Date: |
Thu, 2 Jan 2014 23:30:35 +0100 |
On Thu, 2 Jan 2014 11:35:11 -0800, "P Fudd" <fink@ch.pkts.ca> wrote:
> Here's some more oddities:
>
> =====failing.sh:
> #!/bin/bash
> R="1|2"
> IFS='|' read -r A B <<< $R
> echo A=$A, B=$B
> ====
> Expected: "A=1, B=2"
> Actual: "A=1 2, B="
>
>
> ====fail2.sh:
> #!/bin/bash
> R="1|2"
> while IFS='|' read -r A B; do
> echo 1:A=$A, B=$B
> done <<< $R
> echo 2:A=$A, B=$B
> ====
> Expected:
> 1:A=1, B=2
> 2:A=1, B=2
> Actual:
> 1:A=1, B=2
> 2:A=, B=
>
>
> GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
> bash-4.2-2ubuntu2.1.deb
This is a FAQ, see http://mywiki.wooledge.org/BashFAQ/024 for a full
discussion.
--
D.