Bash Shell Current Date Minus Number of Days
Try doing this :
#!/bin/sh## BACKUP DB TO S3## VARIABLESTYPE="DATABASE"DAYS="30"# GET CURRENT DATETIMECURRENTDATE="$(date +%Y%m%d%H%M%S)"# GENERATE PAST DATE FROM DAYS CONSTANTOLDERDATE="$(date "+%Y%m%d%H%M%S" -d "$DAYS days ago")"# CALL PYTHON SCRIPT WITH OLDERDATE ARGUMENTpython script.py "$OLDERDATE"See info coreutils 'date invocation' | less +/28.7\ Relative\ items\ in\ date\ strings