(tu20.txt)
This tutorial tu2 deals with further introduction to retrieval of
records from Jlib.
Verb "boot" as explained in the last tutorial retrieves the verbs
listed in the input list y. At the same time that it retrieves these
verbs, it reads also the names of its sub-verbs and adds this list to the
list of verbs to do. Boot stops when no more sub-verbs are added to the
list and the "to do" list becomes exhausted. Boot allows you to name the 
resulting script file such as for instance the name: "boot.scr". 
Such a script file provides the same service as an workspace in APL. 
Except for "boot.scr" it is recommended not to keep these .scr files on the 
hard disk for a long time. As an example file boot.scr takes about 1 minute 
to generate with a relatively slow 386. Boot.scr contains aprox. 60 verbs
To "load" a "workspace" you run script 'xxxx.scr' 
The following lists for input to boot are provided with this system:
Create "boot.scr" by running: (0/2) boot read 'boot.wsv' 
Warning! : boot.scr is a chicken and egg proposition. Replace boot.scr only
if you have changed any code in that group of verbs. In that case you should
use the old set of boot.scr verbs to create a new "boot.scr"
Create "file.scr" by running: (0/2) boot read 'file.wsv'
Create "edit.scr" by running: (0/2) boot read 'edit.wsv'
Create "tutor.scr" by running: (0/2) boot read 'tutor.wsv'
Extension .wsv stands for Work Space (root) Verbs.