TIPS: Linux Commands to add swap space

1) Login as "root" user.

2) Execute command "/sbin/swapon -s" (Remove quotations) and you will get current swap size details:

Sample OutPut:
[root@dev /]# /sbin/swapon -s
Filename                                Type            Size    Used    Priority
/dev/mapper/VolGroup00-LogVol01         partition       2064376 0       -1

3) Execute below command to create new swap space with 2048MB space

dd if=/dev/zero of=/home/swapfile bs=2048 count=1048576

Sample OutPut: 

[root@dev /]# dd if=/dev/zero of=/home/swapfile bs=2048 count=1048576
1048576+0 records in
1048576+0 records out
2147483648 bytes (2.1 GB) copied, 13.8048 seconds, 156 MB/s

4) Execute below commands to create swap file:

/sbin/mkswap /home/swapfile 

/sbin/swapon /home/swapfile 

Now, Swap size is increased to 4 GB.

5) To check the swap space execute "/sbin/swapon -s"

Sample OutPut: 

[root@dev /]# /sbin/swapon -s

Filename                                Type            Size    Used    Priority

/dev/mapper/VolGroup00-LogVol01         partition       2064376 0       -1

/home/swapfile                          file            2097144 0       -2

-- Siva Pokuri.

WebLogic Node Manager as Linux Deamon process

WebLogic Node Manager as Linux Daemon process:

Ref: http://oraclemiddlewareblog.com/2012/01/05/node-manager-as-linux-deamon/

-- Siva Pokuri.

Google Gestures!!!

Oracle Access Manager 11g Sample Authentication Plug-ins

Here is the sample OAM 11g Authentication plug-ins provided by Oracle.

http://www.oracle.com/technetwork/indexes/samplecode/id-mgmt-1884959.html

-- Siva Pokuri.

Linux vi commands

Window motions

--------------------

<CTRL>d -- Scroll down (half a screen)

<CTRL> -- Scroll up (half a screen)

<CTRL>f -- Page forward

<CTRL>b -- Page backward

/string -- Search forward

?string -- Search backward

n -- Repeat search

N -- Repeat search reverse

G -- Go to last line

nG -- Go to line n :n -- Go to line n

<CTRL>l -- Redraw screen

<CTRL>g -- File information

Cursor motions

------------------

H -- Upper left corner (home)

M -- Middle line

L -- Lower left corner

h -- Back a character

j -- Down a line

k -- Up a line

^ -- Beginning of line

$ -- End of line

l -- Forward a character

w -- Forward one word

b -- Back one word

fc -- Find c

; -- Repeat find (find next c)

Input commands (end with ESC)

--------------------------------------

a -- Append after cursor

i -- Insert before cursor

o -- Open line below

O -- Open line above

:r file -- Insert file after current line

Changes during insert mode

---------------------------------

<CTRL>h -- Back one character

<CTRL>w -- Back one word

<CRTL>u -- Back to beginning of insert

Move text from file old to file new

--------------------------------------

vi old "a10yy -- Yank 10 lines to buffer a

:w -- Write work buffer

:enew -- Edit new file

"ap -- Put text from a after cursor

Deletion commands

------------------------

dd -- Delete line

ndd -- Delete n lines to general buffer

dw -- Delete word to general buffer

ndw -- Delete n words

d) -- Delete to end of sentence

db -- Delete previous word

D -- Delete to end of line

x -- Delete character

Recovering deletions

------------------------

p -- Put general buffer after cursor

P -- Put general buffer before cursor

Change commands

s -- Substitute (ESC) - 1 char with string

cw -- Change word (ESC)

cc -- Change line (ESC) - blanks line

c$ -- Change to end of line

rc -- Replace character with c

R -- Replace (ESC) - typeover

. -- Repeat last change

Undo commands

u -- Undo last change

U -- Undo all changes on line

Rearrangement commands

--------------------------------

yy or Y -- Yank (copy) line to general buffer

"z6yy -- Yank 6 lines to buffer z

yw -- Yank word to general buffer

"a9dd -- Delete 9 lines to buffer a

"A9dd -- Delete 9 lines; append to buffer a

"ap -- Put text from buffer a after cursor

p -- Put general buffer after cursor

P -- Put general buffer before cursor

J -- Join lines

File management commands

----------------------------------

:w name -- Write edit buffer to file name

:wq -- Write to file and quit

:q! -- Quit without saving changes

ZZ -- Same as :wq

:sh -- Execute shell commands (<CTRL>d)

Parameters

-------------

:set list -- Show invisible characters

:set nolist -- Don't show invisible characters

:set number -- Show line numbers

:set nonumber -- Don't show line numbers

-- Siva Pokuri.

Oracle Entitlements Server 11g Integration with Java Application using Custom Java Tag-Libs

-- Siva Pokuri.

Oracle Adaptive Access Manager(OAAM) 11g R2 PS1: Unable to view Device details in OAAM Sessions

Issue: Not able to view Device Info in OAAM Admin Console

Fix: Redeploy "oaam_admin.ear" from Weblogic Admin console and clear OAAM Admin Server "tmp" folder and restart the OAAM Admin Managed Server.

Note: Make sure OAAM Admin Server is running while redeploying the oaam_admin.ear file.

-- Siva Pokuri.