if {-exist <nameent> | -notexist <nameent>} | -expr <expression>; -cmd <cmdline>:
while -expr <expression> ; -cmd <cmdline>: [-loop <loopcmd>:]
See section 9.1
echo {-off | -on} | <message>
See section 9.2
stop -off | -on
See section 9.3
!<unix-command>
See section 9.4
show <graphic> [-t <type>] [-hide] [-display <dsp>] [-x <x>] [-y <y>] [-w <width>] [-h <height>] [-mac <macro>] [-params <params>;]
See section 9.5.1
showfz <fuzzyname> [-f <field>]
See section 9.5.2
draw [<window-title>]
See section 9.5.3