bug#26101: Counterproductive calculation order in date

[Ulf Zibis]

Hi,

with
    $ date -r test
I get:
    Di 10. Jan 22:39:14 CET 2017
but with
    $ date -d "$(($(date -r test +%s)-$(date +%s))) seconds -2 months"
I get:
   Sa 12. Nov 22:39:14 CET 2016


   Sa 10. Nov 22:39:14 CET 2016


Example:

Additionally the command is not correctly reversible with:


Regards
Ulf

I think the better result would be according to a calculation order from left to right: Otherwise it seems impossible to correctly change the time stamp of a file relative to its current value. $ touch -t $(date -d "$(($(date -r test +%s)-$(date +%s))) seconds -2 months" +%Y%m%d%H%M.%S) test $ touch -t $(date -d "$(($(date -r test +%s)-$(date +%s))) seconds +2 months" +%Y%m%d%H%M.%S) test

smime.p7s
Description: S/MIME Cryptographic Signature