execute perl in command line without specifying perl in UNIX

Question

There is a similar question about Windows, but it won't work for Unix based computers (OS X specifically).

I want to type the name of a file, say example.pl or example.pl parametertext.txt, and have it know to execute perl.

I specified #!/usr/bin/perl in the file so it can find the executable. Instead, I get the message:

bash: example.pl: command not found

Answer 1

You can do it this way,

1. Find the interpreter/executors path. In this case its /usr/bin/perl or /usr/bin/env perl
2. Add it to the first line of the file as #!/usr/bin/perl.
3. Give execute permission to the file chmod +x example.pl

Now it will run

    $ ./example.pl