);
information that is advisory is enclosed in square brackets ( [ ] ).
The two options to checkup specify how much information is displayed. The -p option reports problems only and not correct states. This is useful for day-to-day checking of the system, such as mailing the output to the postmaster alias.
The -v option can take an argument indicating verbosity level, digit, which ranges from 1 (displays the same information as the -p option) to 7 (displays as much information as possible).
Some of the reported problems, such as those about permissions modes, vary by site conventions and may not have widespread significance. For example, it is common for sites to allow group read, write, or execute on files that checkup expects to be protected more carefully. Use of group permissions can greatly ease administration efforts for system administrators without compromising security. Warnings regarding ``others'' permissions should be examined.