Linux/Unix shell scripting vs Perl Post: 302388609

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Top Forums Shell Programming and Scripting Linux/Unix shell scripting vs Perl Post 302388609 by trento17 on Thursday 21st of January 2010 02:38:08 AM

01-21-2010

Registered User

Linux/Unix shell scripting vs Perl

Hi,
I have general question: i have good working Perl script with .pl extension, and now I have to migrate all to another Linux box, and I was told that I can use only shell scripting, so I'm not sure how different those two things are, will it work without any changes . Is there anything smart I can tell those Unix/Linux admins to convince them to use my old .pl.

I thought that Perl is kind of built in n each Unix/Linux box, another thing that this script will be fired by third party scheduler with currently works with with existing shell scripts, so maybe this can make difference.

Will appreciate any info, I'm knd of beginner.
Mario

My pl script pretty simple, something like below, do you think ksh will take it?
--------------------------------------

Code:

opendir(DIR, "$sdir");
  @files1 = grep(/^$name/,readdir(DIR));        # select files with $param name
  @files2 = grep(/\.dat$/,@files1);                # select files with .dat 
closedir(DIR);

foreach $file (@files2) {
  @ports=  split(/_/, $file);                     # extract track
  $port=@ports[2]; 
  @eid=split(/\./, @ports[3]);                    # extract id#
  $id=@eid[0];
  copy("$sdir\$file","c:\:\\Perl\\$targetdir\\$file") or die "Copy failed: $sdir\\$file !";
}

Last edited by pludi; 01-21-2010 at 04:00 AM.. Reason: code tags, please...

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LEARN ABOUT DEBIAN

network.conf

NETSCRIPT-2.2.conf(5)						File Formats Manual					     NETSCRIPT-2.2.conf(5)

NAME

       /etc/netscript/network.conf - interface, firewalling, and QoS configuration file.

       /etc/netscript/if.conf - interface setup shell script file

       /etc/netscript/qos.conf - QoS setup shell script file

       /etc/netscript/ipfilter.conf - IP chains filtering shell script file

       /etc/netscript/srvfilter.conf - server IP filter shell script file

DESCRIPTION

       This manpage is a place holder until something better is written when the netscript itself has stopped changing rapidly.

       Please  see  the README file in the /etc/netscript directory, and READ the configuration files if you need to change them.  Apart from net-
       work.conf, all of them contain sh (1) shell script functions which are there so that various things can be altered  or  hooked  in  at  the
       right place. Network.conf contains the full network setup details, including special interface setup for the likes of ciped/pppd/wanconfig,
       and is fully commented with examples given.

UPGRADE PATH FROM KERNEL 2.2.X
       The firewall/IP filtering stuff in ipfilter.conf is the part that changed radically with the move to iptables and a far better way of  set-
       ting  up  the  IP filtering rules, however the QoS and interface startup/shutdown in if.conf have changed but are backwards compatible with
       the old 2.2.x ipchains version of netscript for the interface address configuration settings.  You will have to set up the filtering  again
       to use iptables by directly using the iptables commands.

       Also,  the  kernel  2.2.x version scripts are set up so that iptables is only run on a 2.4.x kernel, otherwise IP forwarding is disabled if
       beforehand you set IPFWDING_KERNEL to FILTER_ON in network.conf.

       This means that when you upgrade a box to a 2.4.x router kernel, you should then be able to reboot it and log  into  remotely  and  upgrade
       netscript  to  the version that will support 2.4.x.  In this situation, if you have set old IPFWDING_KERNEL setting to FILTER_ON beforehand
       in network.conf, all IP forwarding through the box will also be disabled.  This means that you can safely remotely upgrade a firewall.

SEE ALSO

       netscript(8), ipchains(8), iproute(8), brcfg(8).

AUTHOR

       This manual page was written by Matthew Grant <grantma@anathoth.gen.nz>, for the Debian GNU/Linux system (but may be used by others).

BUGS

       The author is lazy.  He needs to write btter man pages...

								 November 23, 2000					     NETSCRIPT-2.2.conf(5)