a question about perl scripts

[Scott Berry]

Hello there,

I have a perl script which I made a directory for in my home directory and I am currently
unable to get the file to run.  What permissions should be put on a pl file?  I am
assuming read and execute.  All this script does is go up  to everydns.net and make sure
that my web server address always refers to my ip through A records.  Thanks for the
help.

Scott

[Tim]

On Mon, 2007-07-02 at 09:34 -0500, Scott Berry wrote:

>  I have a perl script which I made a directory for in my home
> directory
>  and I am currently unable to get the file to run.  What permissions
>  should be put on a pl file?  I am assuming read and execute. 
I'm not sure about perl scripts, but other script types usually require
some of the following:

Being readable and executable.

You entering the path to the script to run, rather than just the name.
e.g. /home/tim/runme or ./runme

Or putting the script into a ~/bin/ directory that's in your path (then
you don't have to enter the path).

The start of the script having a shebang line saying what's supposed to
run the script.  e.g. #!/usr/bin/perl

>  All this script does is go up  to everydns.net and make sure that my
>  web server address always refers to my ip through A records.  Thanks
>  for the help. 
Perhaps a script like that shouldn't be run from the homespace.  You'd
normally have a server running all the time, so it'd be some form of
daemon or cron job.

-- 
(This box runs FC5, my others run FC4 & FC6, in case that's
 important to the thread.)

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

[Scott Berry]

It's a cron job is what the eDNs group suggests.  I will put it in to bin 
then and see what happens.

Scott

----- Original Message ----- 
From: "Tim" <ignored_mailbox(a)yahoo.com.au&gt;
To: "For users of Fedora" <fedora-list(a)redhat.com&gt;
Sent: Monday, July 02, 2007 10:03 AM
Subject: Re: a question about perl scripts


>  On Mon, 2007-07-02 at 09:34 -0500, Scott Berry wrote:
>
> > I have a perl script which I made a directory for in my home directory
> > and I am currently unable to get the file to run.  What permissions
> > should be put on a pl file?  I am assuming read and execute.
>
>  I'm not sure about perl scripts, but other script types usually require
>  some of the following:
>
>  Being readable and executable.
>
>  You entering the path to the script to run, rather than just the name.
>  e.g. /home/tim/runme or ./runme
>
>  Or putting the script into a ~/bin/ directory that's in your path (then
>  you don't have to enter the path).
>
>  The start of the script having a shebang line saying what's supposed to
>  run the script.  e.g. #!/usr/bin/perl
>
> > All this script does is go up  to everydns.net and make sure that my
> > web server address always refers to my ip through A records.  Thanks
> > for the help.
>
>  Perhaps a script like that shouldn't be run from the homespace.  You'd
>  normally have a server running all the time, so it'd be some form of
>  daemon or cron job.
>
>  -- 
>  (This box runs FC5, my others run FC4 & FC6, in case that's
>  important to the thread.)
>
>  Don't send private replies to my address, the mailbox is ignored.
>  I read messages from the public lists.
>
>  -- 
>  fedora-list mailing list
>  fedora-list(a)redhat.com
>  To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>
>
>
>  -- 
>  No virus found in this incoming message.
>  Checked by AVG Free Edition.
>  Version: 7.5.476 / Virus Database: 269.9.14/883 - Release Date: 7/1/2007 
>  12:19 PM
>
>

[Tim]

On Mon, 2007-07-02 at 10:12 -0500, Scott Berry wrote:
>  It's a cron job is what the eDNs group suggests.  I will put it
> in to
>  bin then and see what happens.  
Which bin?  For personal stuff, putting scripts in ~/bin/ is often
appropriate.  For *system* stuff, that'd normally be /bin/.  For
applications, something like /usr/bin/ or /usr/local/bin/.  If it's
called from a cron script, it could be run from almost anywhere, so long
as the cron script calls it by the full path.  I'd expect their script
to give you information about where to put it, if it needed putting
somewhere in particular.

I have something similar for the No-IP service.  It's a script (run
from /usr/local/bin/noip2) which you start running from somewhere (such
as /etc/rc.local), and it periodically checks for changes to your IP, by
itself.

-- 
[tim@bigblack ~]$ rm -rfd /*^H^H^H^H^H^H^H^H^H^Huname -ipr
2.6.21-1.3228.fc7 i686 i386

Using FC 4, 5, 6 & 7, plus CentOS 5.  Today, it's FC7.

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

[Scott Berry]

Hi Tim,

I ended up putting it /usr/bin and got it set up today.

Scott
----- Original Message ----- 
From: "Tim" <ignored_mailbox(a)yahoo.com.au&gt;
To: "For users of Fedora" <fedora-list(a)redhat.com&gt;
Sent: Monday, July 02, 2007 9:53 PM
Subject: Re: a question about perl scripts


>  On Mon, 2007-07-02 at 10:12 -0500, Scott Berry wrote:
> > It's a cron job is what the eDNs group suggests.  I will put it in to
> > bin then and see what happens.
>
>  Which bin?  For personal stuff, putting scripts in ~/bin/ is often
>  appropriate.  For *system* stuff, that'd normally be /bin/.  For
>  applications, something like /usr/bin/ or /usr/local/bin/.  If it's
>  called from a cron script, it could be run from almost anywhere, so long
>  as the cron script calls it by the full path.  I'd expect their script
>  to give you information about where to put it, if it needed putting
>  somewhere in particular.
>
>  I have something similar for the No-IP service.  It's a script (run
>  from /usr/local/bin/noip2) which you start running from somewhere (such
>  as /etc/rc.local), and it periodically checks for changes to your IP, by
>  itself.
>
>  -- 
>  [tim@bigblack ~]$ rm -rfd /*^H^H^H^H^H^H^H^H^H^Huname -ipr
>  2.6.21-1.3228.fc7 i686 i386
>
>  Using FC 4, 5, 6 & 7, plus CentOS 5.  Today, it's FC7.
>
>  Don't send private replies to my address, the mailbox is ignored.
>  I read messages from the public lists.
>
>
>
>  -- 
>  fedora-list mailing list
>  fedora-list(a)redhat.com
>  To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>
>
>
>  -- 
>  No virus found in this incoming message.
>  Checked by AVG Free Edition.
>  Version: 7.5.476 / Virus Database: 269.9.14/883 - Release Date: 7/1/2007 
>  12:19 PM
>
>

[Simon Andrews]

Scott Berry wrote:
>  Hello there,
>   
>  I have a perl script which I made a directory for in my home directory 
>  and I am currently unable to get the file to run.  What permissions 
>  should be put on a pl file?  I am assuming read and execute. 
Correct, the file needs to be readable and executable by whoever is 
going to be running it.  The first line of the file (the #! line) must 
also point to the correct location of the perl interpreter 
(#!/usr/bin/perl).

Normally you'd use something like

chmod 755 script.pl

..to make the script executable by anyone with read permissions on the 
directory it's in, and make it editable by you.

You should of course be able to run any perl script with just read 
permissions by doing:

perl script.pl

If you're still having problems then post the output you get when you 
try to run the script.

Hope this helps

Simon.