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Re: Quotes inserted into command

From: Andreas Schwab
Subject: Re: Quotes inserted into command
Date: Tue, 22 May 2007 23:02:59 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.97 (gnu/linux)

"Matt Kane" <address@hidden> writes:

> Hello,
> I've got a script that does the following:
> JAVA=/usr/bin/java
> JAVA_W_CLASSPATH="$JAVA -cp \"$classpath\" "
> $JAVA_W_CLASSPATH com.choicestream.foo
> I've noticed that on different versions of bash, it behaves differently.
> Bash 3.0 will execute:
> /usr/bin/java -cp "/path/to/classes" com.choicestream.foo
> And display the same.
> But Bash 3.1 and 3.2 put single quotes around the double quotes when
> executing.
> /usr/bin/java -cp '"/path/to/classes"' com.choicestream.foo
> But it will display:
> /usr/bin/java -cp "/path/to/classes" com.choicestream.foo

There is no difference between the versions, the executed command is
always the same.  If you want the quotes to be reinterpreted you need to
use eval.


Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

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