?
help [-w outfile] [all | command_list]
Display a description of the named functions, including syntax. The 'all' option displays help information for every command.
Example 4-7. help
>> help ? id p sizeof base ldcmds page stat bt livedump pb strace deftask load pd symtab dis md po t dt mktrace print task dump mmap ps trace findsym module px unload fsym mt q vi h namelist q! vtop help nmlist quit walk history od report whatis >> ? h command: history [n] Without the optional parameter, displays the current history. Optional argument 'n' specifies the number of commands that are kept in the history list.