Installation of the (executable) Tcl/Tk versions
 
1.  Download the file. 
2.  Uncompress it with 'gzip -d PEP_tcl7.6p2_tk4.2p2_linux_bins.tar.gz', 
    obtaining the file 'PEP_tcl7.6p2_tk4.2p2_linux_bins.tar'.
    Of course you have to replace `linux' by `solaris' if
    you are installing the Solaris version.
3.  Untar this file with 'tar -xvf PEP_tcl7.6p2_tk4.2p2_linux_bins.tar'; 
    one directory 'tcl7.6p2' with three subdirectories (bin, lib and include)
    are created (make sure no files or directory with this name
    is present before executing this step). 
    Note: If you have GNU tar (for instance, as 'gtar') you may combine steps 2 and 3
    by typing 
          'gtar -xvzf PEP_tcl7.6p2_tk4.2p2_linux_bins.tar.gz'. 

Now you should have installed the correct versions of Tcl and Tk. 
You have to set some environment variables to ensure that
these versions are used:

   If you use 'csh' you can include the following lines in 
   your '.cshrc' file:

      set path = (pathname/tcl7.6p2/bin $path)
      setenv TCL_LIBRARY pathname/tcl7.6p2/lib/tcl7.6
      setenv TK_LIBRARY pathname/tcl7.6p2/lib/tk4.2
 
   and for Solaris you should also set:
  
      setenv  LD_LIBRARY_PATH pathname/tcl7.6p2/lib:${LD_LIBRARY_PATH}
   
Now, you can check the version numbers if you invoke a wish 
typing 'wish' at the command line by use of the following two
commands (the correct output is given below):
       puts $tcl_patchLevel
        7.6p2
       puts $tk_patchLevel
        4.2p2

In case of doubt, please ask your system administrator.

Please communicate any problem you experience to: 
'pep_help@informatik.uni-oldenburg.de'.