I have a directory where daily subdirectories are created, literally named according to
$date. How can I delete folders and their contents that are older than 7 days according to the YYYYMMDD in the file name and not the metadata date? Say I have (skipped some for brevity):
20170817 20170823 20170828 20170901
I would end up with the following folders (which those should keep):
I created a variable that holds the date 7 days ago:
dt_prev=$(date -d "`date`-7days" +%Y%m%d)
My thought was to
ls -l a list of these folder names and compare row by row, but this involves cleaning that list, etc., and I figure there has to be an easier way.