Re: unsetting non existent variables

[Chet Ramey]

> $ man bash
>        unset [-fv] [name ...]
>             ...  The exit status is true unless a name does not exist or is 
> readonly.
> 
> $ set|grep mmm
> $ unset mmm; echo $?
> 0
> 
> mmm didn't exist, but the exit status was still true.
> 
> Actually, I'd rather you change the man page so that unsetting non
> existent variables is not an error, else many of my bash -e scripts
> will fail.

I changed the man page a while back to remove the case where
the name does not exist.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
                                                Live...Laugh...Love
Chet Ramey, ITS, CWRU    chet@po.cwru.edu    http://tiswww.tis.cwru.edu/~chet/