i cant change the access time of any file i create.
i tried the
touch -t commands, but the access time in the
stat utility stays the same.
Can you please help me to modify the access time of the file, and the change time [if possible].
Ubuntu, depending when/how you installed it, uses
noatime mount options by default - this means that tracking of access times is basically disabled.
You can change it by removing that option from
/etc/fstab and rebooting. Or, for instance
sudo mount -o remount,atime /home
on the relevant filesystem.