Notes Section 
This section includes my notes from different sources: web, man pages, documentation, manuals, etc.

This is how google defines a note:

   (noun) A brief record, especially one written down to aid the memory.


I re-categorized the notes section! Misc. section includes JS, HTML and CSS. 5-12-2013 :)



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SVN Basic Tasks (to be completed) 


//Reconciling with trunk
svn merge --depth infinity --accept theirs-full https://server02.company.com/repos/main/branches/acool https://server02.company.com/repos/main/trunk .

//Reverting
svn revert -R .

//Updating a file to an old version (cannot commit)
svn update -r 3678 myfile.txt

//reverse merge a directory
cd events
svn merge -r HEAD:2688 .

//reverse merge a file
svn -c -3445 myfile.txt //reverts to 3444


DEV

TEST CHANGES
/usr/bin/ssh admin@dev.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/trunk@32185 https://server02.company.com/repos/main/trunk@HEAD

PUSH
/usr/bin/ssh admin@dev.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/trunk@HEAD /var/www/html/main




STAGING

TEST CHANGES
/usr/bin/ssh admin@staging.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/releases/3.14@32188 https://server02.company.com/repos/main/releases/3.14@HEAD

PUSH
/usr/bin/ssh admin@staging.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/releases/3.14/@HEAD /var/www/html/main




LIVE


TEST CHANGES
/usr/bin/ssh admin@preview.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/releases/3.14@32186 https://server02.company.com/repos/main/releases/3.14@HEAD

/usr/bin/ssh admin@www-server01.lax.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/releases/3.14@31313 https://server02.company.com/repos/main/releases/3.14@HEAD

/usr/bin/ssh admin@www-server02.lax.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/releases/3.14@31313 https://server02.company.com/repos/main/releases/3.14@HEAD

/usr/bin/ssh admin@www-server03.lax.company.com /usr/bin/svn --summarize diff https://server02.company.com/repos/main/releases/3.14@31313 https://server02.company.com/repos/main/releases/3.14@HEAD


PUSH
/usr/bin/ssh admin@www-server01.lax.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/releases/3.14/@HEAD /var/www/html/main

/usr/bin/ssh admin@www-server02.lax.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/releases/3.14/@HEAD /var/www/html/main

/usr/bin/ssh admin@www-server03.lax.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/releases/3.14/@HEAD /var/www/html/main

/usr/bin/ssh admin@preview.company.com /usr/bin/svn --depth infinity --accept theirs-full --force sw https://server02.company.com/repos/main/releases/3.14/@HEAD /var/www/html/main


//check out
svn co

//determine current branch (svn client)
svn info

//adding new files
svn add


//check in
svn commit
svn ci


//
svn status

//
svn switch

// to create branches in server (to verify this)
svn copy



//
svn log -vl 5

//
svn export

//
svn revert


/************other info************/

svn uses port 3690/tcp

/etc/init.rd/svnserve start|restart|stop

svnadmin create REPO

vim REPO/conf/authz
vim REPO/conf/passwd
vim REPO/conf/svnserve.conf



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VIM Basic Tasks (to be completed ) 
//In Vim, what's an elegant way to grab output from the command-line? (see :help :r!)
:r !echo "foo"

//inserting a new line after current line
o

//inserting a line before current line
O

//Piping output of a command to vim and 'save as'
uname | vi -
:saveas

//VIM Terminology
yank (copy in windows lingo)
delete (cut in windows lingo)
put (paste in windows lingo)


//yank (copy) a line
yy

//delete (cut) a line
dd

//put (paste) a line
p

//using marks to yank multiple lines
ma
y'a
//Example:
ma~~~~~~~~~~~~~~
~~~~~text~~~~~~~~
y'a~~~~~~~~~~~~~~

//Inserting a character X number of times
<ESC>
250
i
a
<ESC>

//cut a line
v this-is-the-line d

//undo
u

//search
/

//search next
n

//write and copy (save and exit in windows lingo)
wq

//the ! overwrites
wq!

//comparing two files
vimdiff -O test1.txt test2.txt
vimdiff -o test1.txt test2.txt //horizontally

//opening multiple files
vim -O file1.txt file2.txt
vim -o file1.txt file2.txt //horizontally

//creating another file while editing one
:vert new test.txt
:vsplit test.txt
:vsp test.txt

//horizontally
:split
:sp

//changing windows
ctrl ww

//go to specific line
:77

//practice
shell$ vimtutor

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Deleting the Master Boot Record (MBR) of a drive. 
/*
You can delete the mbr (master boot recored) using the dd command itself. The following command will completely delete your MBR, which contains all your partition information. So make sure you use the correct device name:
*/

# dd if=/dev/zero of=/dev/sdc bs=512 count=1


http://www.cyberciti.biz/faq/linux-clea ... d-command/


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Apache File Compression (Speeding up websites) 
Speed up load times by automatically compressing CSS, HTML and JavaScript files in Apache. Compressed files are smaller and faster to send, for Apache 2.x, use mod_gzip or the built-in mod_deflate module.

The mod_gzip and mod_deflate modules both add file compression features to Apache. When enabled and configured, text-based files and script output is automatically compressed before it is sent to the visitor’s browser. While the effort to compress a file slows down the web server, this slow down is easily offset by the time saved to send the much smaller compressed file. This is particularly true when the server or the site visitor have a slow network connection.



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Border-Radius property in CSS (Cascading Style Sheets) 
/*

One of the most keenly-anticipated CSS3 properties is border-radius. Web designers will no longer have to resort to complex table structures using custom-made corner graphics or including arcane JavaScript files in order to produce designs with rounded corners. The border-radius CSS property allows Web authors to define how rounded border corners are. Check browser support.

*/

<!DOCTYPE html>
<html>
<head>
<style>

div
{
border-style: solid;
border-width: 2px;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
border-radius: 15px;

}

</style>
</head>
<body>

<div>The border-radius property allows you to add rounded corners to elements.</div>

</body>
</html>



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GIT Tasks 
# filter logs by date range
[acool@acool topsecret-host]$ git log --date=iso --pretty=format:"%ad %H - %an: %s" --after="2014-06-01" --until="2014-11-31" > commits-2014-06-to-2014-11.txt


//revert your working copy
git rm -r .
git checkout SHA1 .
//or (irreversible)
get reset --hard SHA1

//New repository(execute in project directory) (..I think git clone does this)
git init

//Listing, creating or deleting branches
git branch

//Changing branches
git checkout

//Committing changes
git commit

//Download remote repository
git clone

//Updating local repository
git pull //it fetches and merges remote repository with local repository (equals to: git fetch & git merge)

//Uploading local repository to remote repository
git push

//To see status and log entries run:
git status
git log
git log --stat SHA1
git log --name-status SHA1
git log -n 1 //last commit


//Workflow:



...another workflow example:




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Cisco Catalyst 3550 Port Mirroring 
Switch(config)# no monitor session 1
Switch(config)# monitor session 1 source interface fastethernet0/1
Switch(config)# monitor session 1 destination interface fastethernet0/8

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Cisco 1721 IOS Image Upgrade from ROMMON using TFTP 
//using tftpd32 server

rommon 36 > TFTP_SERVER=172.16.1.8
rommon 37 > tftpdnld

IP_ADDRESS: 172.16.1.33
IP_SUBNET_MASK: 255.255.255.0
DEFAULT_GATEWAY: 172.16.1.1
TFTP_SERVER: 172.16.1.8
TFTP_FILE: c1700-adventerprisek9-mz.124-7.bin

//If you want to boot from the image on the TFTP server without writing it to flash then use the command: tftpdnld -r

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Using SSHv1 to connect to Cisco router from a MAC OS X console. 
//problem:
ssh user@cisco_switch

//returns:
ssh_rsa_verify: RSA modulus too small: 512 < minimum 768 bits
key_verify failed for server_host_key

//solution (use SSHv1)
ssh -1 user@cisco_switch

/*...and if you have access to configuration mode enable larger RSA modulus in router. The modulus of the ssh RSA key pair on the switch/router is too small. If you have access, generate a new key pair on the switch/router with a larger modulus. */

crypto key generate rsa general-keys modulus 1024


..as always :)



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