# To change a file's modification time:
touch -d <time> <file>
touch -d 12am <file>
touch -d "yesterday 6am" <file>
touch -d "2 days ago 10:00" <file>
touch -d "tomorrow 04:00" <file>

# To put the timestamp of a file on another:
touch -r <refrence-file> <target-file>
