( ) for arrays -fill, pack option -ipadx and -ipady pack options -padx and -pady, pack options -sticky, grid option /bin/sh _to run a Tcl script { } for argument grouping ~ in file names 17362 MyExample Example 14-12_ The message widget formats long lines of text. 19809 H2x Tcl and Tk Versions 25346 H2 Event Loop Interface 27139 H2x World Wide Web 3D Border 3D relief sampler 41514 MyExample Example 41-6_ A canonical Tcl main program and Tcl_AppInit.