You might want to look at ztkdb where I save multiple text widgets in different tabs. The basic idea is to make a hash for each tab, and store the associated text widget object in the tab's hash entry. Then to save them all, you do something like this:

  foreach my $tabname(keys %tabs){
     my $savetxt = $tabs{$tabname}{'textbox'}->get("1.0","end");
     chomp $savetxt;
     
     # now save it wherever you want, open a file or write to a databa
+se.
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