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Full Discussion: Parse configuration file & add line in particular section
Top Forums Shell Programming and Scripting Parse configuration file & add line in particular section Post 302506985 by pravin27 on Tuesday 22nd of March 2011 12:08:12 PM
Old 03-22-2011
Could this help you ?
Code:
#!/usr/bin/perl

use strict;
my ($server,@flds,$answer,$i,@path,$ret);
system("clear");
{
local $/="\n\n";
$server='Target iqn.2011-03.stroageserver.workgroup.net:VMware.Storage.1';
open(FH,"ietd.conf") or die "$!\n";
while (<FH>){
chomp;
if(/$server/) {
@flds=map("$_\n",grep(/Lun/,split(/\n/)));
foreach (@flds) {s/^\s+//g; print ++$i.") ".$_;}
}
}
}
close(FH);
printf "Enter option:";
$answer=<STDIN>;
chomp;
die  "Invalid Option\n" if ($answer <= 0 ||  $answer > $i);
open(FH,"ietd.conf") or die "$!\n";
{
        local $/="\n\n";
        while(<FH>){
        if(/$server/) {
        @path=split(/=/,$flds[$answer-1]);
        $path[1]=~s/,.*$//g;
        system("./pass_variable.sh $path[1]");
        s/$flds[$answer-1]\s*//g;
        } print $_;
        }

}
close(FH);

Code:
#cat pass_variable.sh
#!/bin/sh
echo ""
echo "Bash script start"
echo $1
echo "Bash script end"
sleep 2

Please make bash script executable using
Code:
chmod +x pass_variable.sh

Last edited by pravin27; 03-22-2011 at 02:46 PM..
 

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LEARN ABOUT NETBSD

iscsi-initiator

ISCSI-INITIATOR(8)					    BSD System Manager's Manual 					ISCSI-INITIATOR(8)

NAME

     iscsi-initiator -- refuse-based iSCSI initiator

SYNOPSIS

     iscsi-initiator [-46bcDfVv] [-a authentication-type] [-d digest-type] [-h target-hostname] [-p target-port-number] [-t target-number]
		     [-u username] mount_point

DESCRIPTION

     The iscsi-initiator utility can be used to access an iSCSI target, such as iscsi-target(8), to access block storage which has been exported.
     Information pertaining to the target is displayed underneath the mount point, along with the device corresponding to the storage which the
     target exports.

     The various arguments are as follows:

     -4      Use an IPv4 connection to the target.

     -6      Use an IPv6 connection to the target.

     -a authentication-type
	     Use the specified authentication type when communicating with the target.	The possible values are chap, kerberos, srp or none.  The
	     default value is none.

     -b      Show the storage as a block device.

     -c      Show the storage as a character device.

     -d digest-type
	     Use the specified digest type when communicating with the target.	The possible values are header, data, both, all or none.  The
	     default value is none.

     -D      List the LUNs on the specified target and exit (i.e. do discovery only)

     -f      Show the storage as a regular file.

     -h hostname
	     Connect to the iSCSI target running on the host specified as the argument.

     -p port-number
	     Connect to the iSCSI target running on the port specified as the argument.  The default value is 3260.

     -t target
	     Connect to the number of the iSCSI target running as the argument.

     -u username
	     Use the specified user's credentials when logging in to the iSCSI target.	There is no default.

     -V      Print out the version number and then exit.

     -v      Be verbose in operation.

     The refuse(3) library is used to provide the file system features.

     The mandatory parameter is the local mount point.

     This iSCSI initiator presents a view of the targets underneath the mount point.  Firstly, it creates a directory tree with the hostname of
     the target, and, in that directory, a virtual directory is created for each target name exported by the iSCSI target program.  Within that
     virtual target directory, symbolic links exist for the hostname (for convenience), a textual representation of the IP address, the iSCSI tar-
     get product name, the iSCSI target IQN, the iSCSI target vendor and version number.  One other directory entry is presented in the virtual
     target directory, relating to the storage presented by the iSCSI target.  This can be in the form of a regular file, which is also the
     default, a block device or a character device.

     Please note that the iscsi-initiator utility needs the ``puffs'' kernel module loaded via modload(8) to operate.

EXAMPLES

     # ./iscsi-initiator -u agc -h iscsi-target0.alistaircrooks.co.uk /mnt
     # ls -al /mnt/target0
     total 576
     drwxr-xr-x  2 agc	agc	   512 May 11 22:24 .
     drwxr-xr-x  2 agc	agc	   512 May 11 22:24 ..
     lrw-r--r--  1 agc	agc	    39 May 11 22:24 hostname -> iscsi-target0.alistaircrooks.co.uk
     lrw-r--r--  1 agc	agc	    14 May 11 22:24 ip -> 172.16.135.130
     lrw-r--r--  1 agc	agc	    16 May 11 22:24 product -> NetBSD iSCSI
     -rw-r--r--  1 agc	agc  104857600 May 11 22:24 storage
     lrw-r--r--  1 agc	agc	    43 May 11 22:24 targetname -> iqn.1994-04.org.netbsd.iscsi-target:target0
     lrw-r--r--  1 agc	agc	     8 May 11 22:24 vendor -> NetBSD
     lrw-r--r--  1 agc	agc	     4 May 11 22:24 version -> 0
     #

SEE ALSO

     puffs(3), refuse(3), iscsi-target(8)

HISTORY

     The iscsi-initiator utility first appeared in NetBSD 6.0.	An earlier version called iscsifs was available in NetBSD 5.0 in source format
     only.

AUTHORS

     The iscsi-initiator utility was written by Alistair Crooks <agc@NetBSD.org>.

BUGS

     iscsi-initiator currently only supports a CHAP challenge length of 16 octets.  Other initiators support up to 1024 and thus it is expected
     that most targets will also support such lengths.	This means that CHAP compatibility with other targets apart from iscsi-target(8) is likely
     to be poor.  To workaround this, please use authentication type none by not specifying a username with the -u option.

BSD
								 February 22, 2011							       BSD
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