Sponsored Content
Top Forums Shell Programming and Scripting How to convert forward zone file to reverse Post 302281958 by Corona688 on Thursday 29th of January 2009 10:39:02 PM
Old 01-29-2009
There's usually not much reason to use cut when the read builtin can handle delimiters more elegantly. Here it takes two delimiters, period and space, to split the string into words and individual numbers at the same time. It also checks when the first three change and prints out the address entire, as your output data suggests you want.

Code:
IFS=" ."
while read NAME G A B C D && [[ ! -z "$NAME" ]]
do
        if      [[ "$A" != "$AA" ]]     ||
                [[ "$B" != "$BB" ]]     ||
                [[ "$C" != "$CC" ]]
        then
                echo "$A.$B.$C.$D"
        fi

        AA="$A" ; BB="$B" ; CC="$C" ; DD="$D"

        echo -e "$D\tPTR\t$NAME.domain.com"
done < zonefile

 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

.forward file for mail redirection

I've set up a .forward file on a few identical servers that we have (all identical .forward file as well) but only one server is forwarding any of my unix mail (mail generated by cron) to my internet account. Because these servers (5) are all identical in terms of aix versions, etc., I do not... (3 Replies)
Discussion started by: giannicello
3 Replies

2. Shell Programming and Scripting

delete and move number forward..in file

I have a file, can I just modify the <number> field and delete the 3rd number and move 4th number to 3rd.. (surely, delete the last digit)? <john> <Number>11 20 03 22 23 21 91 00 F0</Number> <peter> <Number>12 20 03 20 99 21 91 20 F0</Number> <ken> <id> <Number>10 21 03 21 78 21 92... (6 Replies)
Discussion started by: happyv
6 Replies

3. Solaris

Bind zone transfer recategorises zone file?

Hi, I have a primary/slave Bind 9 setup running on a Solaris 10 platform. Everything is hunky dorey, except for when I make a zone file change and up the serial the file that is transferred to the slave looses all its comments, and the entries are place in alphabetical order. I administer many... (1 Reply)
Discussion started by: fulhamfcboy
1 Replies

4. UNIX for Advanced & Expert Users

Forward/Reverse Hostname Resolution for Oracle Install

I've got an old v880 running Sol10 that is going to another location. When the system moves, the domainname in resolv.conf will change also. My DBA's are going through the steps of installing Oracle on the box and they want the install program to resolve the hostname is if the box were already in... (2 Replies)
Discussion started by: bluescreen
2 Replies

5. UNIX for Dummies Questions & Answers

DNS forward and reverse entry required thorugh scripting instead of manually done

HI GUrus, I am very mcuh new for this forum ....i need you all guys help for resolving my queries. As i have DNS server , platform is sunsolaris----8. We are using that serevr for resolving all network nodes. I am going to explain the process what i am following .... I could have... (2 Replies)
Discussion started by: leenagoyal
2 Replies

6. Shell Programming and Scripting

Convert hex to decimal or reverse is better?

Please Help Me! about the problem down under. I have 2 files with nearly the same characteristics, I have to convert one to the other format or the other format to one's format. I want to write it with awk. The first file contain lines like this: 300000001#A#Y#Y#Y#Y The other file contain... (4 Replies)
Discussion started by: Axel82
4 Replies

7. Solaris

Zone failes to boot due to mount issue, dir exists in zone.

I have two physical servers, with zones that mount local storage. We were using "raw device" in the zonecfg to point to a metadevice on the global zone (it was not mounted in the global zone at any point). It failed to mount on every boot because the directory existed in the zone. I... (6 Replies)
Discussion started by: BG_JrAdmin
6 Replies

8. Ubuntu

Iptables forward traffic to forward chain!!!

Hi, I am new to linux stuff. I want to use linux iptables to configure rule so that all my incoming traffic with protocol "tcp" is forwarded to the "FORWARD CHAIN". The traffic i am dealing with has destination addresss of my machine but i want to block it from coming to input chain and somehow... (0 Replies)
Discussion started by: arsipk
0 Replies

9. Shell Programming and Scripting

Convert UTC time into current UNIX sever time zone

Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone. For ex if the time zone of unix server is CDT then i need to convert into CDT.whatever may be the system time... (5 Replies)
Discussion started by: mohanalakshmi
5 Replies
SHTOOL-ECHO.TMP(1)					      GNU Portable Shell Tool						SHTOOL-ECHO.TMP(1)

NAME
shtool-echo - GNU shtool echo(1) extensional command SYNOPSIS
shtool echo [-n|--newline] [-e|--expand] string DESCRIPTION
shtool echo is an echo(1) style command which prints string to stdout and optionally provides special expansion constructs (terminal bold mode, environment details, date, etc) and newline control. The trick of this command is that it provides a portable -n option and hides the gory details needed to find out the environment details under option -e. OPTIONS
The following command line options are available. -n, --newline By default, output is written to stdout followed by a "newline" (ASCII character 0x0a). If option -n is used, this newline character is omitted. -e, --expand If option -e is used, string can contain special "%x" constructs which are expanded before the output is written. Currently the following constructs are recognized: %B switch terminal mode to bold display mode. %b switch terminal mode back to normal display mode. %u the current user name. %U the current user id (numerical). %g the current group name. %G the current group id (numerical). %h the current hostname (without any domain extension). %d the current domain name. %D the current day of the month. %M the current month (numerical). %m the current month name. %Y the current year. EXAMPLE
# shell script shtool echo -n -e "Enter your name [%B%u%b]: "; read name shtool echo -e "Your Email address might be %u@%h%d" shtool echo -e "The current date is %D-%m-%Y" HISTORY
The GNU shtool echo command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1998 for Website META Language (WML) under the name buildinfo. It was later taken over into GNU shtool. SEE ALSO
shtool(1), echo(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-ECHO.TMP(1)
All times are GMT -4. The time now is 05:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy