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Re: Command substition failure?
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From: |
Andreas Schwab |
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Subject: |
Re: Command substition failure? |
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Date: |
Sat, 02 Apr 2011 15:20:23 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) |
Michael Witten <mfwitten@gmail.com> writes:
> Could somebody please tell me what's going on here?
Brace expansion.
$ set -x
$ echo "$(echo '"' | awk '{sub(/a/,$0)}')"
++ echo '"'
++ awk 'sub(/a/'
awk: cmd. line:1: sub(/a/
awk: cmd. line:1: ^ unexpected newline or end of string
++ echo '"'
++ awk '$0)'
awk: $0)
awk: ^ syntax error
+ echo '' ''
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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"And now for something completely different."