date

• Conversions
  • Unix epoche to FORMAT
  • Date to Unix epoche
• Calculations
  • Period to past
  • Period to future

Conversions

Unix epoche to FORMAT

$ date --date=@1196723947.101 +"%Y%m%d-%H:%M:%S %Z"
20071204-09:19:07 EST

Date to Unix epoche

# date --date=20090901 +%s
1251756000

Calculations

Period to past

# date +%Y%m%d
20090902
# date -d "5 days ago" +%Y%m%d
20090828

Period to future

# date +%Y%m%d
20090902
# date -d "5 days" +%Y%m%d
20090907