Bash How to get Yesterday’s Date
Date command has d parameter, that displays time described after d parameter:
date -d yesterday '+%Y-%m-%d'
%Y means year, %m means month, and %d means day. You can change formatting if you want:
date -d yesterday '+%Y:%m:%d'
What if you want get several days, for example, day before 5 days?
date +%Y-%m-%d -d "5 day ago"
Would you take yesterday’s date to the variable?
YESTERDAY=`date -d yesterday '+%Y-%m-%d'` echo $YESTERDAY
Alternative way is using hours:
date -d "24 hours ago" '+%Y-%m-%d'
Another way:
date --date='-1 day' '+%Y-%m-%d'