If you want to run scripts without typing the 'perl' part, make sure the first line of your script is a proper shebang line like so:

#!/usr/bin/perl -w
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Also add dot '.' to your path and make the script executable. With dot in your path, you can run any executable from the directory you are in. To add dot to your path with the tcsh shell, add this to your .cshrc file:

setenv PATH ${PATH}:.
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