On 9/16/16 3:06 PM, Eric Pruitt wrote:
> Bash Version: 4.4
> Patch Level: 0
> Release Status: release
>
> Description:
> In Bash 4.3, "${var/*/text}" would generate "" if var was a zero-length
> string and "text" if it contained at least one character. In Bash 4.4,
> this
> is no longer the case. I'm not sure if this is necessarily a bug, but I
> was
> unable to find this change in behavior in the change log or man page.
This was a bug in bash-4.3. * will match 0 or more characters, so if $var
is null or unset, * should match it. This entry in the CHANGES file
covers it:
llll. Fixed a bug that would not replace empty strings using pattern
substitution even if the pattern matched the empty string.
According to the change log, it looks like I made this change back in May,
2015.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
