[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: `declare -a NAME` followed by `declare -p NAME`
| From: | Chet Ramey |
| Subject: | Re: `declare -a NAME` followed by `declare -p NAME` |
| Date: | Tue, 06 Jan 2015 09:00:40 -0500 |
| User-agent: | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
On 1/4/15 9:31 PM, Ivan Shapovalov wrote: > If an empty array is declared using `declare -a NAME` and then immediately > `declare -p NAME` is invoked, it says there is no such variable. A variable is not set until it is assigned a value. `declare -p name' only finds set variables. > However, the array can be found in output of `declare -p` without NAME given. Yes, since that is supposed to produce output that can recreate all variables with their attributes, even unset variables. This is a common enough request that I have changed the behavior of `declare -p name' for the next bash release, and it will display variables that are not set but have been given attributes. 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/