how to make exe app with Linux perl?

me at wrote:

perl -n -i -e 'print unless /^Content-transfer-encoding: base64/ .. /

This is an excerpt from the latest version perlfaq3.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at http://faq.perl.org .

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3.20: How can I hide the source for my Perl program?

Delete it. :-) Seriously, there are a number of (mostly unsatisfactory)
solutions with varying levels of "security".

First of all, however, you *can't* take away read permission, because
the source code has to be readable in order to be compiled and
interpreted. (That doesn't mean that a CGI script's source is readable
by people on the web, though--only by people with access to the
filesystem.) So you have to leave the permissions at the socially
friendly 0755 level.

This is an excerpt from the latest version perlfaq4.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at http://faq.perl.org .

--------------------------------------------------------------------

4.1: Why am I getting long decimals (eg, 19.9499999999999) instead of the numbers I should be getting (eg, 19.95)?

Internally, your computer represents floating-point numbers in binary.
Digital (as in powers of two) computers cannot store all numbers
exactly. Some real numbers lose precision in the process. This is a
problem with how computers store numbers and affects all computer
languages, not just Perl.

perlnumber shows the gory details of number representations and
conversions.

To limit the number of decimal places in your numbers, you can use the
printf or sprintf function. See the "Floating Point Arithmetic" for more
details.

printf "%%.2f", 10/3;

my $number = sprintf "%%.2f", 10/3;

PerlFAQ Server wrote:

Huh? Broken, how? "it doesn't work" is not a proper diagnosis, let
alone, a title in the FAQ, with no other information added.

I thought it was going to be about how int(-2.5) returns -3, of which
correctness depends on who you ask.

Outline
Before posting to comp.lang.perl.misc
Must
- Check the Perl Frequently Asked Questions (FAQ)
- Check the other standard Perl docs (*.pod)
Really Really Should
- Lurk for a while before posting
- Search a Usenet archive
If You Like
- Check Other Resources
Posting to comp.lang.perl.misc
Is there a better place to ask your question?
- Question should be about Perl, not about the application area
How to participate (post) in the clpmisc community
- Carefully choose the contents of your Subject header
- Use an effective followup style
- Speak Perl rather than English, when possible
- Ask perl to help you
- Do not re-type Perl code
- Provide enough information ...

This is an excerpt from the latest version perlfaq2.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at http://faq.perl.org .

--------------------------------------------------------------------

2.11: Perl Books

A number of books on Perl and/or CGI programming are available. A few of
these are good, some are OK, but many aren't worth your money. There is
a list of these books, some with extensive reviews, at
http://books.perl.org/ . If you don't see your book listed here, you can
write to perlfaq-workers@perl.org .

The incontestably definitive reference book on Perl, written by the
creator of Perl, is Programming Perl:

Programming Perl (the "Camel Book"):
by Larry Wall, Tom Christiansen, and Jon Orwant
ISBN 0-596-00027-8 [3rd edition July 2000]
http://www.oreilly.com/catalog/pperl3/
(English, translations to several languages are also available)

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This is an excerpt from the latest version perlfaq3.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at http://faq.perl.org .

--------------------------------------------------------------------

3.14: How can I write a GUI (X, Tk, Gtk, etc.) in Perl?

(contributed by Ben Morrow)

There are a number of modules which let you write GUIs in Perl. Most GUI
toolkits have a perl interface: an incomplete list follows.

Tk This works under Unix and Windows, and the current version doesn't
look half as bad under Windows as it used to. Some of the gui
elements still don't 'feel' quite right, though. The interface is
very natural and 'perlish', making it easy to use in small scripts
that just need a simple gui. It hasn't been updated in a while.