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Re: Inconsistent handling of quotes in backticks

From: Paul Jarc
Subject: Re: Inconsistent handling of quotes in backticks
Date: Wed, 21 Jul 2004 18:13:34 -0400
User-agent: Gnus/5.110003 (No Gnus v0.3) Emacs/21.3 (gnu/linux)

address@hidden wrote:
> However, if you put quotes around the command in a backtick substitution,
> the command fails:
>       $ `echo "\"echo\" hi"`
>       bash: "echo": command not found

This is normal behavior.  man bash:
   Quote Removal
       After the preceding expansions, all unquoted occurrences of the charac-
       ters  \,  ', and " that did not result from one of the above expansions
       are removed.

Since these " characters were the result of command substitution, they
are not removed.  Maybe this is what you want:
$ eval `echo "\"echo\" hi"`

But beware that this will also process any further expansions,
redirections, etc., that may appear in the result of the command
substitution.  It will be evaluated just like a top-level command.


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