I note that when Ravinder suggested using:

Code:

+%y%m%d%H%M

as a date format when using the GNU date utility, you not only decided to ignore the fact that you would have to specify the pathname for the GNU date utility, you also decided to change that format to:

Code:

+%y%m%d%H%m

and, of course, it didn't work.

There is no way for us to know whether or not you have installed the GNU core utilities on your system or not, and if so, where you installed them. You might see if gdate would work with your default path or if /usr/gnu/bin/date would work.

Or, if you use ksh93 as your shell on a Solaris 11 system, the following should work for you:

Code:

touch -t $(printf '%(%Y%m%d%H%M)T' "7 days ago") hello.txt

If you choose to change the date format I specified, I don't want to hear about how you didn't get the right time.

If you choose to change 7 days ago to 1 week ago, I don't want to hear about how you got Monday a week ago instead of the current day a week ago.

If you choose to try the above command using some shell other than ksh93 to run that command, I don't want to hear about how it didn't work for you.