DreamsOfEranga
Wednesday, February 26, 2020
Thursday, June 18, 2015
Thursday, April 9, 2015
Let’s learn CSS .
1.CSS
stands for Cascading Style Sheets.
2.CSS define how HTML element are to be
displayed.
3.CSS Syntax
4.example
5.Try this code . copy this code ,save as .html and run
<!DOCTYPE
html>
<html>
<head>
<style>
p
{
color: red;
text-align: center;
}
</style>
</head>
<body>
<p>Hello
World!</p>
<p>This
paragraph is styled with CSS.</p>
</body>
</html>
6.result
7.CSS Comment
CSS Comment starts with /* and end with */.8.CSS selectors.
- Element selector
- the element selector select all the element based on element name.
- Id selector
- the id selector uses the id attribute of an HTML element to select a specific element.An id should be unique with a page, so the id selector is used if you want to select a single,unique element.
- try this:-
- Class Selector
- The class selector elements with a specific class attribute.To select elements with a specific class,write a period character,followed by the name of class.
- try this:-
- Grouping selector
- You can group the seletors,to minimize the code.
9.Three Ways to Insert CSS.
- External style sheet.
- example:-
- CSS style sheet must be save with a .css extension.
- each page must include a reference to the external style sheet file inside the <link> element.The <link> element goes inside the head section.
- Internal style sheet.
- An internal style sheet may be used if one single page has a unique style.Internal styles are defined within the <style>` element,inside the head selection of an HTML page .
Thursday, November 27, 2014
i) Creating a file of 100M containing all zeros named as dsk.img
>dd if=/dev/zero of=dsk.img bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 3.61239 s, 29.0 MB/s
dd = Copy a file, converting and formatting according to the operands
if = input file
of = output file
bs = size of bites
count = blocksof bites
ii) Associate a loopback device with the file
>sudo losetup /dev/loop0 dsk.img
losetup - set up and control loop devices
Checking if the previous command executes without errors.
>echo $?
0
Confirming association.
>sudo losetup /dev/loop0
/dev/loop0: [0801]:29055 (/home/toko/dsk.img)
The loopback device is a special, virtual network interface that your computer uses to
communicate with itself.
iii) Create a VFAT file system on the new device using the mkfs command
>sudo mkfs.vfat /dev/loop0
mkfs.vfat 3.0.13 (30 Jun 2012)
Loop device does not match a floppy size, using default hd params
mkfs.vfat = create an VFAT filesystem under linux
VFAT = Virtual File Allocation Tableiv) Mount the new file system on /mnt/f1
Creating a directory as f1 inside /mnt
>sudo mkdir /mnt/f1
mkdir = make directory
Mount - mount a file system
>sudo mount -t vfat /dev/loop0 /mnt/f1
mount -t file_system_type device dir
v) Create & Write on file abc.txt
>sudo nano /mnt/t1/abc.txt
HELLO SCS2106
vi) Unmount
>sudo umount /mnt/f1
vii) Look for the string "SCS2106" in dsk.img
>grep -RIl "SCS2106" dsk.img
o If you cant’t read & write to mounted disk
>sudo mount grep | loop0
o Force to unmount
>sudo umount -f /mnt/f1
o Unmount after process ends.
>sudo umount /mnt/f1 –l
o Remove loop device
>losetup -d /dev/loop0
o Killing programs using mounted disk
>sudo fuser -km /mnt/f1
>dd if=/dev/zero of=dsk.img bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 3.61239 s, 29.0 MB/s
dd = Copy a file, converting and formatting according to the operands
if = input file
of = output file
bs = size of bites
count = blocksof bites
ii) Associate a loopback device with the file
>sudo losetup /dev/loop0 dsk.img
losetup - set up and control loop devices
Checking if the previous command executes without errors.
>echo $?
0
Confirming association.
>sudo losetup /dev/loop0
/dev/loop0: [0801]:29055 (/home/toko/dsk.img)
The loopback device is a special, virtual network interface that your computer uses to
communicate with itself.
iii) Create a VFAT file system on the new device using the mkfs command
>sudo mkfs.vfat /dev/loop0
mkfs.vfat 3.0.13 (30 Jun 2012)
Loop device does not match a floppy size, using default hd params
mkfs.vfat = create an VFAT filesystem under linux
VFAT = Virtual File Allocation Tableiv) Mount the new file system on /mnt/f1
Creating a directory as f1 inside /mnt
>sudo mkdir /mnt/f1
mkdir = make directory
Mount - mount a file system
>sudo mount -t vfat /dev/loop0 /mnt/f1
mount -t file_system_type device dir
v) Create & Write on file abc.txt
>sudo nano /mnt/t1/abc.txt
HELLO SCS2106
vi) Unmount
>sudo umount /mnt/f1
vii) Look for the string "SCS2106" in dsk.img
>grep -RIl "SCS2106" dsk.img
o If you cant’t read & write to mounted disk
>sudo mount grep | loop0
o Force to unmount
>sudo umount -f /mnt/f1
o Unmount after process ends.
>sudo umount /mnt/f1 –l
o Remove loop device
>losetup -d /dev/loop0
o Killing programs using mounted disk
>sudo fuser -km /mnt/f1
Sunday, November 23, 2014
CODEIGNITER REPORT
1.First I downloaded CodeIgniter and put that folder to www folder2.Then went to phpMyAdmin at localhost and made a database named as book
3.Created a table and insert data to book database.
4. Then went to www folder -> CodeIgniter ->application->config->autoload and change the code (set $autoload['libraries'] = array() as $autoload['libraries'] = array('database')).
5. Then went to www folder -> CodeIgniter ->application->config->database and change the code (set user name password and database).
6.Wrote php codes for get data from database.
7.Saved that codes on www folder -> CodeIgniter ->application->controller folder , www folder -> CodeIgniter ->application->model folder and www folder -> CodeIgniter ->application->view folder
controller.php
view.php
8. Then loaded the browser and typed http://localhost/CodeIgniter_2.1.3/CodeIgniter_2.1.3/index.php/controller1 .I got data from database.
9.This is the out put
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