Date of yesterday in bash?
I recently had to hack a small shell script that would read files in a directory structure generated based on the date, something like 2007/08/16. The trick was that the script would look at yesterday’s file or files generated a few days ago.
A quick search on info and here’s the magic command
FILE="...$(date -d 'yesterday' +%Y/%m/%d)"
Interestingly, you can also use things like 3 days ago, next Monday, 2 months etc.
Cool!