Yes, you can delete the contents of the /var/cache/apt/archives directory on Ubuntu/Debian Linux. The directory contains package files that have been downloaded by the apt package manager, and they can be safely removed if you need to free up space on your system. You can use the command “sudo rm -rf /var/cache/apt/archives/*” to remove all files in the directory.
Note that the next time you run “apt-get update” or “apt-get upgrade”, apt will redownload any packages that were deleted and the disk space will be used again.