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Linux HowTo's -
Advance Linux HowTo's
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Written by Keith Short
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Tuesday, 08 September 2009 12:11 |
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This Expect script takes as it's argument, the IP Address of an IOS device that is using AAA Authentication (Username/Password), and returns the OSPF Neighbors of the device.
Usage: ospf_neighbors_script ip address
The script also creates a file with the OSPF Neighbors in the directory it's run from. The format is "ip address-ospf_neighbors",
 Download get_ospf_neighbor | | File Title: | get_ospf_neighbor (Details) | | File Type: | exp | | File Version: | 1.0 | | File Size: | 1.57 Kb | | License: | | | File Author: | Keith Short | | File HomePage: | | | Downloads: | 24 | | Rating: |  ( Votes) | | Your Vote: | |
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kshort@LinuxStudent:~$ ospf_neighbors_script 10.255.0.26
Username? kshort
Password?
Trying 192.168.0.26...
Connected to 192.168.0.26.
Escape character is '^]'.
User Access Verification
Username: kshort
Password:
Test-Router#terminal length 0
Test-Router#sho ip ospf nei
Neighbor ID Pri State Dead Time Address Interface
192.168.1.1 0 FULL/ - 00:00:38 192.168.0.85 Serial1/0.2
192.168.2.1 0 FULL/ - 00:00:38 192.168.0.25 Serial1/0.1
192.168.3.1 1 FULL/BDR 00:00:39 192.168.2.70 GigabitEthernet0/1
192.168.4.1 1 FULL/BDR 00:00:38 192.168.2.66 GigabitEthernet0/0
Test-Router#
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Last Updated on Thursday, 10 September 2009 09:27 |
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Linux HowTo's -
Advance Linux HowTo's
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Written by linuxdynasty
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Tuesday, 16 September 2008 14:20 |
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The other day I had to come up with a way to transfer a Solaris Express nv97 DVD 3G image to remote locations while not using the network. The reason for this is, I needed to perform a LiveUpgrade on over 700 boxes and each being at a different locations. So I said to myself I guess I can put this image on a custom LiveDVD... But then I said to myself, which Linux LiveCD/DVD distro will I use???? It has to be small enough so that I can fit the Solaris Express nv97 image as well as the LiveCD Image.
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Last Updated on Tuesday, 16 September 2008 22:41 |
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Linux HowTo's -
Advance Linux HowTo's
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Written by Keith Short
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Tuesday, 19 August 2008 12:40 |
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This script will find a MAC address on a Cisco IOS based switch.
Here's what you'll see when the switch is successful and unsuccessful finding the MAC address.
Notice it prompts you for your username and password. This script is integrated with the Expect Telnet script on this site.
kshort@LinuxStudent:~$ ./findMACaddress_final 10.10.12.1
Enter the MAC Address? 0013.72fb.3050
Username? kshort
Password?
-------------------Here Are the The Results of Your Search------------------
vlan mac address type learn age ports
------+----------------+--------+-----+----------+--------------------------
Supervisor:
* 95 0013.72fb.3050 dynamic Yes 65 Gi1/3
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Last Updated on Wednesday, 02 September 2009 09:00 |
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Linux HowTo's -
Advance Linux HowTo's
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Written by Allen Sanabria
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Sunday, 18 May 2008 16:33 |
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There are a bunch of great regular expressions HowTo's out there..... Now you may be asking why am I creating another??? Well quite simple, I am creating this one because this is not really just a regular expression howto but more a regular expression HowTo with its everyday uses with linux/unix commands. So it will not cover perl/python/ruby/...etc programming languages regular expressions (That will be for another tutorial :) )
To start this off I will give you a basic introduction to regular expressions using the output
of "ls" and piping it "grep" using the -oE options (The o stands for Exact match and the E stands for Extended Regular Expressions). Using "(BRE and ERE) Basic Regular Expressions and Posix Extended Regular Expressions"...
THIS IS NOT A TUTORIAL BUT A HOWTO!! So this means more examples and less explaining..
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Anchors |
What it means |
Example |
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^ |
Start of string |
ls |grep -oE "^C\w+\.jpg"
Chunka.jpg
Chunka1.jpg |
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$ |
End of string |
ls |grep -oE "\w+(\.jpg$)"
Chunka.jpg
Chunka1.jpg
DSCF0732.jpg |
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\b |
Word boundary |
ls |grep -oE "\bChunka\b\.jpg"
Chunka.jpg |
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\< |
Start of word |
ls |grep -oE "\<Ch\w+\.jpg"
Chunka.jpg
Chunka1.jpg |
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\> |
End of word |
ls Scripts/Python/ |grep -oE "\w+\>\.py"
xen_mac_generate.py |
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Character Classes |
What it means |
Example |
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\w |
Word |
ls | grep -oE "\w"
C
C |
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\W |
Non word |
ls |grep -oE "\W"
.
. |
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Quantifiers |
what it means |
example |
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* |
zero or more times |
ls | grep -oE "\w*.jpg"
Chunka.jpg
Chunka1.jpg
DSCF0732.jpg |
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+ |
one or more times |
ls | grep -oE "\w+"
Chunka
Chunka1
DSCF0732 |
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? |
matches either once or zero times |
ls | grep -oE "Chunka1?.jpg"
Chunka.jpg
Chunka1.jpg |
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{2} |
Exactly 2 times |
ls | grep -oE "(^C{2}h\w+.jpg)"
CChunka.jpg |
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{1,} |
1 or more times |
ls | grep -oE "(^C{1,}h\w+.jpg)"
CChunka.jpg
CCChunka.jpg
Chunka.jpg
Chunka1.jpg
Chunka11.jpg |
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{1,2} |
1 through 2 times |
ls | grep -oE "(^C{1,2}h\w+.jpg)"
CChunka.jpg
Chunka.jpg
Chunka1.jpg
Chunka11.jpg |
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Special Characters |
What it means |
Example |
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\n |
New line |
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\r |
Carriage return |
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\t |
Tab |
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\v
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Vertical tab |
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\f |
Form feed |
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Last Updated on Saturday, 24 May 2008 18:58 |
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Linux HowTo's -
Advance Linux HowTo's
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Written by Allen Sanabria
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Saturday, 17 May 2008 10:39 |
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In the the first part of this HowTo, I gave you the bare minimum to get Screen working
and how to use it on a day to day basis.... This time around I will show you some
of the advanced features of screen that may make your life easier in the terminal..
Before continuing this HowTo please read Part 1 if you do not have previous experience with screen.
So lets start this HowTo with some more Screen Commands...
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Last Updated on Tuesday, 20 May 2008 07:15 |
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