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Full Discussion: ctrl-c in shell script
Top Forums Shell Programming and Scripting ctrl-c in shell script Post 302666209 by nareshkumar522 on Wednesday 4th of July 2012 02:03:58 AM
Old 07-04-2012
Here is the code for perl script.

The perl script is inbuilt script which I am using to list pools

(LP) List Pools

Below is the code of perl


Code:
Enter the action you would like to perform: ';
                chomp ($opt{F} = <STDIN>);
#               $opt{F} = uc($opt{F});
        } until ($opt{F} =~ m/^A$|^M$|^R$|^D$|^L$|^LP$|^Lp$|^Ls$|^LS$|^CS$|^DS$|^RS$|^C$|^B$/);
        return;
}

# Validate a pool supplied on the cmd line
sub _validate_pool {
        my ($args) = shift;
        # $args->{pools}         => the pool data from the filer.
        # $args->{pool_to_check} => The pool to verify.

        # Go through the pool data and if the pool_to_check matches the data pulled from the filer.
        foreach my $pool_data (@{ $args->{pools} }) {
#               if ($pool_data =~ m/^$args->{pool_to_check}\s+/ && $pool_data =~ m/\s+online\s+/) {
                if ($pool_data =~ m/^$args->{pool_to_check}\s+/) {
                        return 1;

                }
        }
        print "\nWARNING:  Invalid pool specified\n\n";
        return 0;
}

# If the user doesn't specify the pool
sub _get_pool {
        my $ref = shift;
        my @pools = @{ $ref };
        my $input;

        do {
                print "\nThe following pools are online and available:\n";
                printf("%-10s %10s    %10s    %10s    %10s    %10s %% %10s %%\n", "Name", "Total", "Allocated", "Used", "Available", "Alloca                 ted", "Used");
                print("-"x95);
                print "\n";
                foreach my $pool (@pools) {
                        my (@data) = split(/\s+/, $pool);
#                       if ($data[5] eq "online") {
                                printf("%-10s %10d GB %10d GB %10d GB %10d GB %10d %% %10d %%\n", $data[0], $data[1] / 1048576, $data[2] / 1                 048576, $data[3] / 1048576, $data[4] / 1048576, $data[5], $data[6]);
#                       }
                }
                print "\nEnter the name of the pool you want to use: ";
                chomp ($input = <STDIN>);
        }  until ( &_validate_pool({pools => $ref, pool_to_check => $input}));
        return $input;
}

 

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LEARN ABOUT NETBSD

ippool

IPPOOL(8)						      System Manager's Manual							 IPPOOL(8)

NAME

       ippool - user interface to the IPFilter pools

SYNOPSIS

       ippool -a [-dnv] [-m <name>] [-o <role>] -i <ipaddr>[/<netmask>]
       ippool -A [-dnv] [-m <name>] [-o <role>] [-S <seed>] [-t <type>]
       ippool -f <file> [-dnuv]
       ippool -F [-dv] [-o <role>] [-t <type>]
       ippool -l [-dv] [-m <name>] [-t <type>]
       ippool -r [-dnv] [-m <name>] [-o <role>] -i <ipaddr>[/<netmask>]
       ippool -R [-dnv] [-m <name>] [-o <role>] [-t <type>]
       ippool -s [-dtv] [-M <core>] [-N <namelist>]

DESCRIPTION

       Ippool is used to manage information stored in the IP pools subsystem of IPFilter.  Configuration file information may be parsed and loaded
       into the kernel, currently configured pools removed or changed as well as inspected.

       The command line options used are broken into two sections: the global options and the instance specific options.

GLOBAL OPTIONS

       -d     Toggle debugging of processing the configuration file.

       -n     This flag (no-change) prevents ippool from actually making any ioctl calls or doing anything which would alter the currently running
	      kernel.

       -v     Turn verbose mode on.

COMMAND OPTIONS

       -a     Add a new data node to an existing pool in the kernel.

       -A     Add a new (empty) pool to the kernel.

       -f <file>
	      Read in IP pool configuration information from the file and load it into the kernel.

       -F     Flush loaded pools from the kernel.

       -l     Display a list of pools currently loaded into the kernel.

       -r     Remove an existing data node from a pool in the kernel.

       -R     Remove an existing pool from within the kernel.

       -s     Display IP pool statistical information.

OPTIONS

       -i <ipaddr>[/<netmask>]
	      Sets the IP address for the operation being undertaken with an all-one's mask or, optionally, a specific netmask given in either the
	      dotted-quad notation or a single integer.

       -m <name>
	      Sets the pool name for the current operation.

       -M <core>
	      Specify an alternative path to /dev/kmem to retrieve statistical information from.

       -N <namelist>
	      Specify an alternative path to lookup symbol name information from when retrieving statistical information.

       -o <role>
	      Sets the role with which this pool is to be used.  Currently only ipf, auth and count are accepted as arguments to this option.

       -S <seed>
	      Sets the hashing seed to the number specified.  Only for use with hash type pools.

       -t <type>
	      Sets the type of pool being defined.  Myst be one of tree, hash, group-map.

       -u     When parsing a configuration file, rather than load new pool data into the kernel, unload it.

FILES

       /dev/iplookup
       /etc/ippool.conf

SEE ALSO

       ippool(5), ipf(8), ipfstat(8)

																	 IPPOOL(8)
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