Get yesterday's date in bash on Linux, DST-safe

I think this should work, irrespective of how often and when you run it ...

date -d "yesterday 13:00" '+%Y-%m-%d'

date under Mac OSX is slightly different.

For yesterday

date -v-1d +%F

For Last week

date -v-1w +%F

This should also work, but perhaps it is too much:

date -d @$(( $(date +"%s") - 86400)) +"%Y-%m-%d"