Direct mail is a broad term that includes the following types of mailed promotions: Institutional direct mail serves to promote the name of the publishing house with no reasonable expectation of sales revenues.
touch (Unix) touch is a standard Unix command-line interface program which is used to update the access date and / or modification date of a file or directory. In its default usage, it is the equivalent of creating or opening a file and saving it without any change to the file contents.
But as I matured as a user I found CLI (command line interface) was more efficient than fiddling with the buttons of a tool. CLI also allows users to be independent of distros. Just look at the derivates of Ubuntu, even if they use the same code-base they have different tools to do the same job.