(tu21.txt)
Other verbs in "boot.scr" of interest are:
x. single y. : x.=0 or 2 ; y.= ONE file name. Retrieves a script for one verb
             : x.= 0 = decommented code x.= 2 = commented code
van : van is (Verbs),(And),(Nouns); van 2 gives all nouns in the session space
    : van 3 gives all verbs in the session space ; van 2,3 gives both.
list: list is used to list the output from van and breaks the string at the 
      word closest to 79 chars for each line. Use as: list van 3 
do  : do is used with the nouns "xat" and "goto" to provide capabilities 
      to branch to a label. If condition results in 1 then:
      (condition) do goto,'label'  sets $. to point to label and continue
      from there. (condition) do xat,'label' sets $. to point to label AND
      exit at the label. xat = eXit AT .
      
      Please note that verb names as list get etc. might be present on your
      own J-system, not doing the same things or providing the same style of 
      output. So look out for name conflicts if you combine the supplied Jlib
      with your own libraries. See tu4 for name conflict problems.
      