On 4/28/20 2:28 PM, Greg Wooledge wrote:
> On Tue, Apr 28, 2020 at 08:14:28PM +0200, andrej--- via Bug reports for the
> GNU Bourne Again SHell wrote:
>> f() { local x=a; }
>> declare -r x
>> f # bash: local: x: readonly variable
>>
>> This^^^ should not fail; it hinders reusability of shell functions and
>> makes
>> them context-dependent.
>
> The purpose of 'readonly' as a variable attribute is to supplement a
> restricted shell environment. If a variable is set readonly, it's because
> the system administrator, or whoever set up the enviroment, demands that
> this variable NOT be changed by the end user.
The second sentence is true, but extends beyond the restricted shell
environment. Variables are readonly for a reason.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
