A.28. )what

User Level Required: interpreter

Command Syntax:

- )what categories pattern1 [pattern2 ...]
- )what commands   pattern1 [pattern2 ...]
- )what domains    pattern1 [pattern2 ...]
- )what operations pattern1 [pattern2 ...]
- )what packages   pattern1 [pattern2 ...]
- )what synonym    pattern1 [pattern2 ...]
- )what things     pattern1 [pattern2 ...]
- )apropos         pattern1 [pattern2 ...]

Command Description:

This command is used to display lists of things in the system. The patterns are all strings and, if present, restrict the contents of the lists. Only those items that contain one or more of the strings as substrings are displayed. For example,

)what synonym

displays all command synonyms,

)what synonym ver

displays all command synonyms containing the substring ver,

)what synonym ver pr

displays all command synonyms containing the substring ver or the substring pr. Output similar to the following will be displayed

System Command Synonyms

user-defined synonyms satisfying patterns: ver pr

)apr ........................... )what things
)apropos ....................... )what things
)prompt ........................ )set message prompt
)version ....................... )lisp *yearweek*

Several other things can be listed with the )what command:

categories
  displays a list of category constructors.

commands
  displays a list of  system commands available  at your
  user-level. Your user-level is set via the )set userlevel command. To get
  a description of a particular command, such as ``)what``, issue )help
  what.

domains
  displays a list of domain constructors.

operations
  displays a list of operations in  the system library.

  It is recommended that you qualify this command with one or more
  patterns, as there are thousands of operations available. For example,
  say you are looking for functions that involve computation of
  eigenvalues. To find their names, try )what operations eig. A rather
  large list of operations is loaded into the workspace when this command
  is first issued. This list will be deleted when you clear the workspace
  via )clear all or )clear completely. It will be re-created if it is
  needed again.

packages
  displays a list of package constructors.

synonym
  lists system command synonyms.

things
  displays all  of the  above types for  items containing
  the pattern strings as substrings. The command synonym )apropos is
  equivalent to )what things.

Also See:

• )display
• )set
• )show