Soar's help facility is able to do command completion, so as long as a unique substring of the commandname is specified, Soar will find and display the help page. If no pager is available, then an error message is given. Since some pages are long, this will make it difficult to read an entire page. This includes the abbreviated syntax for the command. This variable contains the user's preferred paging program which shows text page by page rather than spewing all text at once to standard output.
Typical pagers are more , less , and page .
Some pages, such as less clear the screen upon exit, removing the help page from view. If you wish to retain the help page, use a pager such as more .