Tidbits

?>
You might be able to use http://checkip.dyndns.org:8245/ and clean it up a bit

I put this all together and powered down my DSL modem for 30 minutes, after which it just grabbed a new IP.

I ran the above shell script and bingo it worked.

1. Also works with 'diff', i.e., diff $1 $2 > /dev/null (or so I read)

On a remote server to display the IP of the the requesting computer I used this\\

The good thing about the multiple text files is that it gave me insight into which part was failing when it initially didn't work. I could just check each log file to see where the problem was.

lynx -source -auth=NAME:PASSWORD 'http://dynamic.zoneedit.com/auth/dynamic.html?host=virtual-weltanschauung.org' >> /tmp/dns/zone.log

1. Determine my ip

grep -o -f /tmp/dns/myip2.log /tmp/dns/dns.log > /tmp/dns/dnsck.log

cmp /tmp/dns/myip2.log /tmp/dns/dnsck.log > /dev/null # /dev/null buries the output of the "cmp" command.

  echo "File \"myip2.log\" is identical to file \"dnsck.log\"." >> /tmp/dns/test.log

else

Create a shell script that has this: (A line for each domain name)(zoneed)

Automatically Updating Dynamic IP for Zoneedit DNS Server (dnsck.script) \\

Create a shell script that has this: (A line for each domain name)\\ (zoneed)

Automatically Updating Dynamic IP for Zoneedit DNS Server dnsck.script \\

Create a shell script that has this: (A line for each domain name)\\ zoneed

Put this is in the Cron.Hourly making sure to update any path references

[@

1. !/bin/sh
2. Determin my ip

lynx -dump "http://www.virtual-weltanschauung.com/t3.php" > /tmp/dns/myip1.log

1. Determin current DNS of domain name

ping -c 1 www.virtual-weltanschauung.org | fgrep PING > /tmp/dns/dns.log

1. Strip out whitespace of results of my ip result the remove extra line

sed 's/^[ \t]*//;s/[ \t]*$//' /tmp/dns/myip1.log > /tmp/dns/myip2a.log sed '/^$/d' /tmp/dns/myip2a.log > /tmp/dns/myip2.log

grep -o -f myip2.log dns.log > /tmp/dns/myipck.log

if [ $? -eq 0 ] # Test exit status of "cmp" command.

  echo "File \"myip2.log\" is identical to file \"myipck.log\"." >> /tmp/dns/okDNS.log

else /tmp/dns/zoneed

exit 0

 @]

Here is my script to update Zoneedit website DNS For My Home Domain
Put his in the folder that matches the dnsck.script

Automatically Updating Dynamic IP for Zoneedit DNS Server\\

Put this is in the Cron.Hourly making sure to update and path references

1. Strip out whitespace of results of myip1.log result then remove extra line

Trouble with SED? After looking at this website http://www.student.northpark.edu/pemente/sed/sed1line.txt... How about this?

.

Here are my earlier notes as I worked through this problem:

Here are my earlier notes as I worked through this problem:

sed 's/^[ \t]*//' ip2.log > ip4.log

clears the leading white space from one file and puts just the text in another file.

1. delete BOTH leading and trailing whitespace from each line

sed 's/^[ \t]*//;s/[ \t]*$//'

From http://www.unixguide.net/unix/sedoneliner.shtml

Maybe this will help
(3) < Redirector Symbol
Syntax:
Linux-command < filename
To take input to Linux-command from file instead of key-board. For e.g. To take input for cat command give
$ cat < myfiles
from http://www.freeos.com/guides/lsst/index.html

And maybe grep will help (I could have them in two lines in one file).

http://pegasus.rutgers.edu/~elflord/unix/grep.html

And to match exactly an IP number from one file to another, maybe this will help

grep -o -f ip1.log ip2.log

Here is my script to update Zoneedit website DNS For My Home Domain

See PHP section to get a page to return just your IP, but here it is also
Display IP Address

On a remote server to display the IP of the the requesting computer I used this

<?php
$ip = getenv('REMOTE_ADDR');
PRINT("$ip");
?>

Here is my script to update Zoneedit website DNS For My Home Domain

#!/bin/sh
lynx -source -auth=NAME:PASSWORD 'http://dynamic.zoneedit.com/auth/dynamic.html?host=www.virtual-weltanschauung.org'
lynx -source -auth=NAME:PASSWORD 'http://dynamic.zoneedit.com/auth/dynamic.html?host=harpo.virtual-weltanschauung.org'
lynx -source -auth=NAME:PASSWORD 'http://dynamic.zoneedit.com/auth/dynamic.html?host=virtual-weltanschauung.org' >> /tmp/zone.log 

Automatically Updating Dynamic IP for Zoneedit DNS Server

See PHP section to get a page to return just your IP

So I put it in the Cron.hourly folder. And we will see.

.

1. You could probably use http://checkip.dyndns.org/ and then somehow strip out the text

    echo "File \"myip2.log\" is identical to file \"myipck.log\"." >> dnsOK.log

    zoneedit.script >> zoneedit.log

I put this all together and powered down my DSL modem for 30 minutes, after which it jused another IP.

I rand the above shell script and bingo it worked.

So I put it in the Cron.hourly folder. And we will see

1. Determine my ip

1. Determine current DNS of domain name

I'm sure any true Unix or Linux aficionado would be horrified by this, but until somebody shows me wonderful world of geeky purity I'll keep pfutzing around like this.

I'm sure any try Unix or Linux aficionado would be horrified by this, but until somebody shows me wonderful world of geeky purity I'll keep pfutzing around like this.

.

I'm sure any try Unix or Linux aficionado would be horrified by this, but until somebody shows me wonderful world of geeky purity I keep pfutzing around like this.

So I should be able to simply put in the update script instead of "differs from file" messages, shouldn't I?

After looking at this website http://www.student.northpark.edu/pemente/sed/sed1line.txt...

1. Strip out whitespace of results of myip result then remove extra line

exit 0 @]

[@#!/bin/sh

1. Determin my ip

lynx -dump "http://www.virtual-weltanschauung.com/t3.php" > myip1.log

1. Determin current DNS of domain name

ping -c 1 www.virtual-weltanschauung.org | fgrep PING > dns.log

1. Strip out whitespace of results of my ip result the remove extra line

sed 's/^[ \t]*//;s/[ \t]*$//' myip1.log > myip2a.log sed '/^$/d' myip2a.log > myip2.log

1. Use grep to find refined my ip addr in DNS result

grep -o -f myip2.log dns.log > myipck.log

1. compare the result of grep to the refined myIP

cmp myip2.log myipck.log > /dev/null # /dev/null buries the output of the "cmp" command.

1. Also works with 'diff', i.e., diff $1 $2 > /dev/null

    if [ $? -eq 0 ]        # Test exit status of "cmp" command.

then

    echo "File \"myip2.log\" is identical to file \"myipck.log\"."

else

    echo "File \"myip2.log\" differs from file \"myipck.log\"."

[@#!/bin/sh\\

    if [ $? -eq 0 ]        # Test exit status of "cmp" command.\\

    echo "File \"myip2.log\" is identical to file \"myipck.log\"."\\

    echo "File \"myip2.log\" differs from file \"myipck.log\"."\\

exit 0 @]

echo "File \"myip2.log\" is identical to file \"myipck.log\"."\\

echo "File \"myip2.log\" differs from file \"myipck.log\"."\\

How about this?

1. !/bin/sh
   # Determin my ip
   lynx -dump "http://www.virtual-weltanschauung.com/t3.php" > myip1.log
   # Determin current DNS of domain name
   ping -c 1 www.virtual-weltanschauung.org | fgrep PING > dns.log
   # Strip out whitespace of results of my ip result the remove extra line
   sed 's/^[ \t]*//;s/[ \t]*$//' myip1.log > myip2a.log
   sed '/^$/d' myip2a.log > myip2.log
   # Use grep to find refined my ip addr in DNS result
   grep -o -f myip2.log dns.log > myipck.log
   # compare the result of grep to the refined myIP
   cmp myip2.log myipck.log > /dev/null # /dev/null buries the output of the "cmp" command.
   # Also works with 'diff', i.e., diff $1 $2 > /dev/null
   

if [ $? -eq 0 ] # Test exit status of "cmp" command.
then
-> echo "File \"myip2.log\" is identical to file \"myipck.log\"."
else\\

exit 0

http://pegasus.rutgers.edu/~elflord/unix/grep.html

And to match exactly an IP number from one file to another, maybe this will help

grep -o -f ip1.log ip2.log

From http://www.unixguide.net/unix/sedoneliner.shtml

Maybe this will help
(3) < Redirector Symbol
Syntax:
Linux-command < filename
To take input to Linux-command from file instead of key-board. For e.g. To take input for cat command give
$ cat < myfiles
from http://www.freeos.com/guides/lsst/index.html

And maybe grep will help (I could have them in two lines in one file).

http://pegasus.rutgers.edu/~elflord/unix/grep.html

1. delete BOTH leading and trailing whitespace from each line

sed 's/^[ \t]*//;s/[ \t]*$//'

clears the leading white space from one file and puts just the text in another file.

From http://www.unixguide.net/unix/sedoneliner.shtml

sed 's/^[ \t]*//' ip2.log > ip4.log

clears the leading white space from one file and puts just the text in another file.