7 Write a Tcl script to retrieve the HTML text document the first page of the School of Computer Science Website and save it into a file. Then display it.

7 Write a Tcl script to retrieve the HTML text document the first page of the School of Computer Science Website and save it into a file. Then display it. 8. The following is a demonstration script in Tcl/Tk release 8.3 which creates a toplevel window containing several button widgets. Try it out set w .button catch {destroy $w} toplevel $w wm title $w "Button Demonstration" label $w.msg -wraplength 4i -justify left -text "If you click on any of\ the four buttons below, the background of the button area will change to\ the color indicated in the button. You can press Tab to move among the\ buttons,then press Space to invoke the current button." pack $w.msg -side top frame $w.buttons pack $w.buttons -side bottom -fill x -pady 2m button $w.buttons.dismiss -text Dismiss -command "destroy $w" button $w.buttons.code -text "See Code" -command "showCode $w" pack $w.buttons.dismiss $w.buttons.code -side left -expand 1 button $w.b1 -text "Peach Puff" -width 10 \ -command "$w config -bg PeachPuff1; $w.buttons config -bg PeachPuff1" button $w.b2 -text "Light Blue" -width 10 \ -command "$w config -bg LightBlue1; $w.buttons config -bg LightBlue1" button $w.b3 -text "Sea Green" -width 10 \ -command "$w config -bg SeaGreen2; $w.buttons config -bg SeaGreen2" button $w.b4 -text "Yellow" -width 10 \ -command "$w config -bg Yellow1; $w.buttons config -bg Yellow1" pack $w.b1 $w.b2 $w.b3 $w.b4 -side top -expand yes -pady 2