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.
Re: 'vi' - 'touch' Commands Difference @Rijus, Vi - a programmers text editor. It can be used to edit all kinds of plain text. It is especially useful for. editing programs. Mainly used by Unix programmers. Nowadays, knowing to work in vi is an added advantage for Oracle DBA's /Developers. Touch- change file timestamps.