Well, one possibility is something like:

    #!/usr/bin/perl -w
    use strict;
    exec('/bin/tcsh', '/path/to/yourshellscript');
    __END__
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But the only real option is to learn enough Perl to re-implement your scripts in Perl, or find another human who can do so for you. There is no tcshell2perl converter. See this faq for further enlightenment.