Apropos

SPECTRA allows you to scan the help file for a search string:

Format:

SPECTRA> ap$*$ropos [string1 [string2 [...]]]

If SPECTRA finds an occurrence of the search string, it displays the location in the help tree and prompts the user to jump there 'J', carry on with the search <ret> or to quit apropos 'Q'.

If more than one search string is supplied, SPECTRA displays only those lines that contain all strings.