Re: No tilde expansion right after a quotation

[Angel Tsankov]

Eric Blake wrote:
> According to Angel Tsankov on 2/15/2009 3:02 PM:
>> I tried CPATH="${CPATH}${CPATH:+:}"~usr1/blah/blah.  (I quote
>> expansions just to be on the safe side, though I think home
>> directories may not contain spaces.)
>
> There are some contexts, such as variable assignments, where double
> quotes are not necessary.
>
> foo='a b'
> bar=$foo
>
> is just as safe as
>
> bar="$foo"
>
> In fact, it is MORE portable to avoid double quotes in assignments,
> if you are worried about writing scripts portable to more than just
> bash.  Of these two constructs:
>
> foo="`echo "a b"`"
> bar=`echo "a b"`
>
> only the setting of bar is guaranteed to parse correctly in all
> shells.
Eric, thanks for youy replay.  If double quotes are not that portable, then 
how am I suppose to assign the output from some command to a variable when 
the output contains a space?

-Angel