Sometimes i want to search/filter help for particular commands for keywords.

history --help

gives list of optionms, sometimes its overwhelming how many info is there, can i filter it for keywork "clear" e.g.

history --help *clear*

Also sometimes i want all info from --help, but screen its so many lines that some of them get lost and i cannot scroll up for them, how can i make it show screen by screen e.g. fill first screen then on key press fill second screen etc.

question same for file listing command.