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From: Chad on 10 Jul 2010 20:07
The question stems from an IRSSI irc client scripting tutorial site
found at the following URL...

http://juerd.nl/site.plp/irssiscripttut

"Because Irssi scripts are embedded in Irssi and not executed from the
console, they do not need to be executable. A permission mode setting
of 600 is enough for scripts in your home directory, 644 is enough for
system wide script installations. The shebang line is not required, as
this is only the case for executable scripts. "

How can a script actually run if it isn't executable?
From: Kenny McCormack on 10 Jul 2010 20:25
In article <0e0440e7-821a-4949-91b0-6930159e5c36(a)k1g2000prl.googlegroups.com>,
Chad <cdalten(a)gmail.com> wrote:
>The question stems from an IRSSI irc client scripting tutorial site
>found at the following URL...
>
>http://juerd.nl/site.plp/irssiscripttut
>
>"Because Irssi scripts are embedded in Irssi and not executed from the
>console, they do not need to be executable. A permission mode setting
>of 600 is enough for scripts in your home directory, 644 is enough for
>system wide script installations. The shebang line is not required, as
>this is only the case for executable scripts. "
>
>How can a script actually run if it isn't executable?

Many possibilities. The most straightforward is if it is executed as:

perl yourscript.pl

--
"We should always be disposed to believe that which appears to us to be
white is really black, if the hierarchy of the church so decides."

- Saint Ignatius Loyola (1491-1556) Founder of the Jesuit Order -

From: Ben Morrow on 10 Jul 2010 20:26
[f'ups set to clpmisc]

Quoth Chad <cdalten(a)gmail.com>:
> The question stems from an IRSSI irc client scripting tutorial site
> found at the following URL...
>
> http://juerd.nl/site.plp/irssiscripttut
>
> "Because Irssi scripts are embedded in Irssi and not executed from the
> console, they do not need to be executable. A permission mode setting
> of 600 is enough for scripts in your home directory, 644 is enough for
> system wide script installations. The shebang line is not required, as
> this is only the case for executable scripts. "
>
> How can a script actually run if it isn't executable?

You can run any script you can read with

% perl script

Perl doesn't check if the script is executable or not. Irssi does
something similar, except it passes the script to its embedded perl
interpreter rather than executing /usr/bin/perl.

The *only* time a script needs to be executable is when it has a #! line
and you want to invoke it as

% script

or

% ./script

rather than explicitly invoking perl.

Ben

From: Daniel Molina Wegener on 11 Jul 2010 08:41
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Hash: SHA512

On S�b 10 Jul 2010 20:07,
Chad wrote:

> The question stems from an IRSSI irc client scripting tutorial site
> found at the following URL...
>
> http://juerd.nl/site.plp/irssiscripttut
>
> "Because Irssi scripts are embedded in Irssi and not executed from the
> console, they do not need to be executable. A permission mode setting
> of 600 is enough for scripts in your home directory, 644 is enough for
> system wide script installations. The shebang line is not required, as
> this is only the case for executable scripts. "
>
> How can a script actually run if it isn't executable?

As many dynamic languages today, Perl is an embedable language, so
you can examine your perl documentation using:

$ perldoc perlembed

And take wider look on how to embed Perl into other applications,
such as Irssi. In other words, Perl and other dynamic languages, can
be embeded as a component of your application.

Best regards,
- --
Daniel Molina Wegener <dmw [at] coder [dot] cl>
System Programmer & Web Developer
Phone: +56 (2) 979-0277 | Blog: http://coder.cl/
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