[Linux-disciples] Including the results of a program in a prompt

[Dylan Thurston]

On Mon, Nov 22, 2004 at 10:37:14AM -0500, Adam Rosi-Kessel wrote:
> Double quotes don't escape backticks.
> 
> Single quotes do.
> 
> There is a long history of this behavior.  I may be mistaken, but I 
> think this is the primary difference between double and single quotes 
> for escaping in bash (aside from, of course, the fact that with double 
> quotes you don't need to escape internal single quotes and vice versa).

Well, as part of the same difference, single quotes escape shell
substitutions and double quotes do not:

dpt at lotus:~$ echo $SHELL
/bin/bash
dpt at lotus:~$ echo "$SHELL"
/bin/bash
dpt at lotus:~$ echo '$SHELL'
$SHELL


Peace,
	Dylan

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