Re: typeset -p on an empty integer variable is an error. (plus -v test w/ array elements)

[Chet Ramey]

On 1/12/13 10:07 AM, John Kearney wrote:

> regarding -e it mainly has a bad name because there is no good guide how
> to program with it.
> so for example this causes stress
> [ ! -d ${dirname} ] && mkdir ${dirname}
> because if the dir exists it will exit the scripts :)

I'm not sure this is what you wanted to say.  When -e is set, that code
will not cause an error exit if ${dirname} exists and is a directory.  Run
this script in the bash source directory and see what happens:

set -e
[ ! -d builtins ] && mkdir builtins
echo after


Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/