BSNL JTO Application form.
http://www.bsnl.co.in/Misc/jto2009.pdf
Sunday, March 1, 2009
How to Create an RSS 2.0 Feed
How to Create an RSS 2.0 Feed
If you can learn HTML, you can easily learn how to build your own RSS 2.0 feeds. I'll take you through the steps to creating an RSS feed from scratch.
Step 1: XML Declaration
Since RSS 2.0 must validate as XML, the first line in your rss feed must be the XML declaration.
The encoding is optional but recommended. If your using something other than UTF-8 be sure to change the above line.
Note: If you are using CFML and have whitespace due to the Application.cfm file you can reset the output buffer using
Step 2: RSS Channel
In this step we need to open up the rss tag, and the channel tag, all of your feed content goes inside these tags.
Step 3: RSS Feed Information
Next you place information about your RSS feed such as the title of it, the description, and a link to the the site.
http://www.example.com/
This is my rss 2 feed description
Mon, 12 Sep 2005 18:37:00 GMT
en-us
The lastBuildDate should be the date and time that the feed was last changed. Dates in RSS feeds should comply to RFC 822. In CFML the DateFormat mask would be ddd, dd mmm yyyy and the TimeFormat would be HH:mm:ss. Dates should be offset to GMT. The lastBuildDate tag is not required but is highly recommended.
Step 4: RSS Items
Next we enumerate over each RSS item, each item has a title, link, and description, publication date, and guid.
http://example.com/item/123
http://example.com/item/123
Mon, 12 Sep 2005 18:37:00 GMT
[CDATA[ This is the description. ]]
Make sure you escape any characters that might cause your XML to invalidate, these characters include <, >, & - I like to enclose any content that may contain HTML inside a CDATA section.
Note: In CFML you can use the XmlFormat function to escape special characters in XML.
Step 5: Close Channel and RSS tags.
Step 6: Validate your feed
Validate your feed using FeedValidator.org.
Other things to take note of
Content Type - See my post on content types for RSS feeds
Encoding - You should include the encoding in your Content-Type HTTP header, and in the XML declaration.
Styling - If you want to make your RSS feed look a little nicer you can CSS stylesheet for your RSS feed.
Categories - It's a good idea to include category tags in your RSS feeds as well, these go inside the item tag. You can give an item multiple categories by adding a tag for each on
If you can learn HTML, you can easily learn how to build your own RSS 2.0 feeds. I'll take you through the steps to creating an RSS feed from scratch.
Step 1: XML Declaration
Since RSS 2.0 must validate as XML, the first line in your rss feed must be the XML declaration.
The encoding is optional but recommended. If your using something other than UTF-8 be sure to change the above line.
Note: If you are using CFML and have whitespace due to the Application.cfm file you can reset the output buffer using
Step 2: RSS Channel
In this step we need to open up the rss tag, and the channel tag, all of your feed content goes inside these tags.
Step 3: RSS Feed Information
Next you place information about your RSS feed such as the title of it, the description, and a link to the the site.
http://www.example.com/
The lastBuildDate should be the date and time that the feed was last changed. Dates in RSS feeds should comply to RFC 822. In CFML the DateFormat mask would be ddd, dd mmm yyyy and the TimeFormat would be HH:mm:ss. Dates should be offset to GMT. The lastBuildDate tag is not required but is highly recommended.
Step 4: RSS Items
Next we enumerate over each RSS item, each item has a title, link, and description, publication date, and guid.
http://example.com/item/123
Make sure you escape any characters that might cause your XML to invalidate, these characters include <, >, & - I like to enclose any content that may contain HTML inside a CDATA section.
Note: In CFML you can use the XmlFormat function to escape special characters in XML.
Step 5: Close Channel and RSS tags.
Step 6: Validate your feed
Validate your feed using FeedValidator.org.
Other things to take note of
Content Type - See my post on content types for RSS feeds
Encoding - You should include the encoding in your Content-Type HTTP header, and in the XML declaration.
Styling - If you want to make your RSS feed look a little nicer you can CSS stylesheet for your RSS feed.
Categories - It's a good idea to include category tags in your RSS feeds as well, these go inside the item tag. You can give an item multiple categories by adding a tag for each on
An A-Z Index of the Bash command line for Linux.
An A-Z Index of the Bash command line for Linux.
alias Create an alias
apropos Search Help manual pages (man -k)
apt-get Search for and install software packages (Debian)
aspell Spell Checker
awk Find and Replace text, database sort/validate/index
b
bash GNU Bourne-Again SHell
bc Arbitrary precision calculator language
bg Send to background
break Exit from a loop
builtin Run a shell builtin
bzip2 Compress or decompress named file(s)
c
cal Display a calendar
case Conditionally perform a command
cat Display the contents of a file
cd Change Directory
cfdisk Partition table manipulator for Linux
chgrp Change group ownership
chmod Change access permissions
chown Change file owner and group
chroot Run a command with a different root directory
chkconfig System services (runlevel)
cksum Print CRC checksum and byte counts
clear Clear terminal screen
cmp Compare two files
comm Compare two sorted files line by line
command Run a command - ignoring shell functions
continue Resume the next iteration of a loop
cp Copy one or more files to another location
cron Daemon to execute scheduled commands
crontab Schedule a command to run at a later time
csplit Split a file into context-determined pieces
cut Divide a file into several parts
d
date Display or change the date & time
dc Desk Calculator
dd Convert and copy a file, write disk headers, boot records
ddrescue Data recovery tool
declare Declare variables and give them attributes
df Display free disk space
diff Display the differences between two files
diff3 Show differences among three files
dig DNS lookup
dir Briefly list directory contents
dircolors Colour setup for `ls'
dirname Convert a full pathname to just a path
dirs Display list of remembered directories
dmesg Print kernel & driver messages
du Estimate file space usage
e
echo Display message on screen
egrep Search file(s) for lines that match an extended expression
eject Eject removable media
enable Enable and disable builtin shell commands
env Environment variables
ethtool Ethernet card settings
eval Evaluate several commands/arguments
exec Execute a command
exit Exit the shell
expect Automate arbitrary applications accessed over a terminal
expand Convert tabs to spaces
export Set an environment variable
expr Evaluate expressions
f
false Do nothing, unsuccessfully
fdformat Low-level format a floppy disk
fdisk Partition table manipulator for Linux
fg Send job to foreground
fgrep Search file(s) for lines that match a fixed string
file Determine file type
find Search for files that meet a desired criteria
fmt Reformat paragraph text
fold Wrap text to fit a specified width.
for Expand words, and execute commands
format Format disks or tapes
free Display memory usage
fsck File system consistency check and repair
ftp File Transfer Protocol
function Define Function Macros
fuser Identify/kill the process that is accessing a file
g
gawk Find and Replace text within file(s)
getopts Parse positional parameters
grep Search file(s) for lines that match a given pattern
groups Print group names a user is in
gzip Compress or decompress named file(s)
h
hash Remember the full pathname of a name argument
head Output the first part of file(s)
history Command History
hostname Print or set system name
i
id Print user and group id's
if Conditionally perform a command
ifconfig Configure a network interface
ifdown Stop a network interface
ifup Start a network interface up
import Capture an X server screen and save the image to file
install Copy files and set attributes
j
join Join lines on a common field
k
kill Stop a process from running
killall Kill processes by name
l
less Display output one screen at a time
let Perform arithmetic on shell variables
ln Make links between files
local Create variables
locate Find files
logname Print current login name
logout Exit a login shell
look Display lines beginning with a given string
lpc Line printer control program
lpr Off line print
lprint Print a file
lprintd Abort a print job
lprintq List the print queue
lprm Remove jobs from the print queue
ls List information about file(s)
lsof List open files
m
make Recompile a group of programs
man Help manual
mkdir Create new folder(s)
mkfifo Make FIFOs (named pipes)
mkisofs Create an hybrid ISO9660/JOLIET/HFS filesystem
mknod Make block or character special files
more Display output one screen at a time
mount Mount a file system
mtools Manipulate MS-DOS files
mv Move or rename files or directories
mmv Mass Move and rename (files)
n
netstat Networking information
nice Set the priority of a command or job
nl Number lines and write files
nohup Run a command immune to hangups
nslookup Query Internet name servers interactively
o
open Open a file in its default application
op Operator access
p
passwd Modify a user password
paste Merge lines of files
pathchk Check file name portability
ping Test a network connection
popd Restore the previous value of the current directory
pr Prepare files for printing
printcap Printer capability database
printenv Print environment variables
printf Format and print data
ps Process status
pushd Save and then change the current directory
pwd Print Working Directory
q
quota Display disk usage and limits
quotacheck Scan a file system for disk usage
quotactl Set disk quotas
r
ram ram disk device
rcp Copy files between two machines
read read a line from standard input
readonly Mark variables/functions as readonly
reboot Reboot the system
renice Alter priority of running processes
remsync Synchronize remote files via email
return Exit a shell function
rev Reverse lines of a file
rm Remove files
rmdir Remove folder(s)
rsync Remote file copy (Synchronize file trees)
s
screen Multiplex terminal, run remote shells via ssh
scp Secure copy (remote file copy)
sdiff Merge two files interactively
sed Stream Editor
select Accept keyboard input
seq Print numeric sequences
set Manipulate shell variables and functions
sftp Secure File Transfer Program
shift Shift positional parameters
shopt Shell Options
shutdown Shutdown or restart linux
sleep Delay for a specified time
slocate Find files
sort Sort text files
source Run commands from a file `.'
split Split a file into fixed-size pieces
ssh Secure Shell client (remote login program)
strace Trace system calls and signals
su Substitute user identity
sudo Execute a command as another user
sum Print a checksum for a file
symlink Make a new name for a file
sync Synchronize data on disk with memory
t
tail Output the last part of files
tar Tape ARchiver
tee Redirect output to multiple files
test Evaluate a conditional expression
time Measure Program running time
times User and system times
touch Change file timestamps
top List processes running on the system
traceroute Trace Route to Host
trap Run a command when a signal is set(bourne)
tr Translate, squeeze, and/or delete characters
true Do nothing, successfully
tsort Topological sort
tty Print filename of terminal on stdin
type Describe a command
u
ulimit Limit user resources
umask Users file creation mask
umount Unmount a device
unalias Remove an alias
uname Print system information
unexpand Convert spaces to tabs
uniq Uniquify files
units Convert units from one scale to another
unset Remove variable or function names
unshar Unpack shell archive scripts
until Execute commands (until error)
useradd Create new user account
usermod Modify user account
users List users currently logged in
uuencode Encode a binary file
uudecode Decode a file created by uuencode
v
v Verbosely list directory contents (`ls -l -b')
vdir Verbosely list directory contents (`ls -l -b')
vi Text Editor
vmstat Report virtual memory statistics
w
watch Execute/display a program periodically
wc Print byte, word, and line counts
whereis Report all known instances of a command
which Locate a program file in the user's path.
while Execute commands
who Print all usernames currently logged in
whoami Print the current user id and name (`id -un')
Wget Retrieve web pages or files via HTTP, HTTPS or FTP
write Send a message to another user
x
xargs Execute utility, passing constructed argument list(s)
yes Print a string until interrupted
. Run a command script in the current shell
### Comment / Remark
alias Create an alias
apropos Search Help manual pages (man -k)
apt-get Search for and install software packages (Debian)
aspell Spell Checker
awk Find and Replace text, database sort/validate/index
b
bash GNU Bourne-Again SHell
bc Arbitrary precision calculator language
bg Send to background
break Exit from a loop
builtin Run a shell builtin
bzip2 Compress or decompress named file(s)
c
cal Display a calendar
case Conditionally perform a command
cat Display the contents of a file
cd Change Directory
cfdisk Partition table manipulator for Linux
chgrp Change group ownership
chmod Change access permissions
chown Change file owner and group
chroot Run a command with a different root directory
chkconfig System services (runlevel)
cksum Print CRC checksum and byte counts
clear Clear terminal screen
cmp Compare two files
comm Compare two sorted files line by line
command Run a command - ignoring shell functions
continue Resume the next iteration of a loop
cp Copy one or more files to another location
cron Daemon to execute scheduled commands
crontab Schedule a command to run at a later time
csplit Split a file into context-determined pieces
cut Divide a file into several parts
d
date Display or change the date & time
dc Desk Calculator
dd Convert and copy a file, write disk headers, boot records
ddrescue Data recovery tool
declare Declare variables and give them attributes
df Display free disk space
diff Display the differences between two files
diff3 Show differences among three files
dig DNS lookup
dir Briefly list directory contents
dircolors Colour setup for `ls'
dirname Convert a full pathname to just a path
dirs Display list of remembered directories
dmesg Print kernel & driver messages
du Estimate file space usage
e
echo Display message on screen
egrep Search file(s) for lines that match an extended expression
eject Eject removable media
enable Enable and disable builtin shell commands
env Environment variables
ethtool Ethernet card settings
eval Evaluate several commands/arguments
exec Execute a command
exit Exit the shell
expect Automate arbitrary applications accessed over a terminal
expand Convert tabs to spaces
export Set an environment variable
expr Evaluate expressions
f
false Do nothing, unsuccessfully
fdformat Low-level format a floppy disk
fdisk Partition table manipulator for Linux
fg Send job to foreground
fgrep Search file(s) for lines that match a fixed string
file Determine file type
find Search for files that meet a desired criteria
fmt Reformat paragraph text
fold Wrap text to fit a specified width.
for Expand words, and execute commands
format Format disks or tapes
free Display memory usage
fsck File system consistency check and repair
ftp File Transfer Protocol
function Define Function Macros
fuser Identify/kill the process that is accessing a file
g
gawk Find and Replace text within file(s)
getopts Parse positional parameters
grep Search file(s) for lines that match a given pattern
groups Print group names a user is in
gzip Compress or decompress named file(s)
h
hash Remember the full pathname of a name argument
head Output the first part of file(s)
history Command History
hostname Print or set system name
i
id Print user and group id's
if Conditionally perform a command
ifconfig Configure a network interface
ifdown Stop a network interface
ifup Start a network interface up
import Capture an X server screen and save the image to file
install Copy files and set attributes
j
join Join lines on a common field
k
kill Stop a process from running
killall Kill processes by name
l
less Display output one screen at a time
let Perform arithmetic on shell variables
ln Make links between files
local Create variables
locate Find files
logname Print current login name
logout Exit a login shell
look Display lines beginning with a given string
lpc Line printer control program
lpr Off line print
lprint Print a file
lprintd Abort a print job
lprintq List the print queue
lprm Remove jobs from the print queue
ls List information about file(s)
lsof List open files
m
make Recompile a group of programs
man Help manual
mkdir Create new folder(s)
mkfifo Make FIFOs (named pipes)
mkisofs Create an hybrid ISO9660/JOLIET/HFS filesystem
mknod Make block or character special files
more Display output one screen at a time
mount Mount a file system
mtools Manipulate MS-DOS files
mv Move or rename files or directories
mmv Mass Move and rename (files)
n
netstat Networking information
nice Set the priority of a command or job
nl Number lines and write files
nohup Run a command immune to hangups
nslookup Query Internet name servers interactively
o
open Open a file in its default application
op Operator access
p
passwd Modify a user password
paste Merge lines of files
pathchk Check file name portability
ping Test a network connection
popd Restore the previous value of the current directory
pr Prepare files for printing
printcap Printer capability database
printenv Print environment variables
printf Format and print data
ps Process status
pushd Save and then change the current directory
pwd Print Working Directory
q
quota Display disk usage and limits
quotacheck Scan a file system for disk usage
quotactl Set disk quotas
r
ram ram disk device
rcp Copy files between two machines
read read a line from standard input
readonly Mark variables/functions as readonly
reboot Reboot the system
renice Alter priority of running processes
remsync Synchronize remote files via email
return Exit a shell function
rev Reverse lines of a file
rm Remove files
rmdir Remove folder(s)
rsync Remote file copy (Synchronize file trees)
s
screen Multiplex terminal, run remote shells via ssh
scp Secure copy (remote file copy)
sdiff Merge two files interactively
sed Stream Editor
select Accept keyboard input
seq Print numeric sequences
set Manipulate shell variables and functions
sftp Secure File Transfer Program
shift Shift positional parameters
shopt Shell Options
shutdown Shutdown or restart linux
sleep Delay for a specified time
slocate Find files
sort Sort text files
source Run commands from a file `.'
split Split a file into fixed-size pieces
ssh Secure Shell client (remote login program)
strace Trace system calls and signals
su Substitute user identity
sudo Execute a command as another user
sum Print a checksum for a file
symlink Make a new name for a file
sync Synchronize data on disk with memory
t
tail Output the last part of files
tar Tape ARchiver
tee Redirect output to multiple files
test Evaluate a conditional expression
time Measure Program running time
times User and system times
touch Change file timestamps
top List processes running on the system
traceroute Trace Route to Host
trap Run a command when a signal is set(bourne)
tr Translate, squeeze, and/or delete characters
true Do nothing, successfully
tsort Topological sort
tty Print filename of terminal on stdin
type Describe a command
u
ulimit Limit user resources
umask Users file creation mask
umount Unmount a device
unalias Remove an alias
uname Print system information
unexpand Convert spaces to tabs
uniq Uniquify files
units Convert units from one scale to another
unset Remove variable or function names
unshar Unpack shell archive scripts
until Execute commands (until error)
useradd Create new user account
usermod Modify user account
users List users currently logged in
uuencode Encode a binary file
uudecode Decode a file created by uuencode
v
v Verbosely list directory contents (`ls -l -b')
vdir Verbosely list directory contents (`ls -l -b')
vi Text Editor
vmstat Report virtual memory statistics
w
watch Execute/display a program periodically
wc Print byte, word, and line counts
whereis Report all known instances of a command
which Locate a program file in the user's path.
while Execute commands
who Print all usernames currently logged in
whoami Print the current user id and name (`id -un')
Wget Retrieve web pages or files via HTTP, HTTPS or FTP
write Send a message to another user
x
xargs Execute utility, passing constructed argument list(s)
yes Print a string until interrupted
. Run a command script in the current shell
### Comment / Remark
Tips and hints to help you become a successful magician
Tips and hints to help you become a successful magician:
Practice in front of a mirror so you can see the trick as your audience will. Practice lots!
Practice the "patter" as well as the trick. Figure out before hand what you want to say during the show. Good patter will help distract the audience just enough to keep them from guessing how you've pulled off your magical feats! Here's a start for you:
I have a magic trick for you.
It should be lots of fun.
Pay very close attention,
And guess how it is done!
Resist the temptation to tell how the trick worked... keep them guessing and they'll be even more impressed with your show.
Never do the same trick more than once for the same audience. It makes it too easy for the audience to guess how it was done.
Control the seating arrangements... some of the tricks require that the people be looking straight at you. Have the audience remain seated throughout the show.
Wherever you can, borrow the objects from the audience... coins, pencils, napkins, etc. Borrowing from the audience makes it seem like the magician hasn't had time to do anything sneaky to the item. This makes everything seem more magical!
Lovely Assistant: a lot of the card tricks (or any other mind reading type tricks) work well using a magical puppet or stuffed animal as your assistant. Try putting on an entire show where you aren't a magician at all... instead claim that you bought a puppet from an old gypsy woman and it turned out to be magic (you can make up a cool story to use as your patter). Have the puppet or stuffed animal "whisper" the answers into your ear. Having a puppet do all the work, may keep you from getting stage fright! I've included the puppet image on all the tricks that will work well this way.
Now... on with the show!
Practice in front of a mirror so you can see the trick as your audience will. Practice lots!
Practice the "patter" as well as the trick. Figure out before hand what you want to say during the show. Good patter will help distract the audience just enough to keep them from guessing how you've pulled off your magical feats! Here's a start for you:
I have a magic trick for you.
It should be lots of fun.
Pay very close attention,
And guess how it is done!
Resist the temptation to tell how the trick worked... keep them guessing and they'll be even more impressed with your show.
Never do the same trick more than once for the same audience. It makes it too easy for the audience to guess how it was done.
Control the seating arrangements... some of the tricks require that the people be looking straight at you. Have the audience remain seated throughout the show.
Wherever you can, borrow the objects from the audience... coins, pencils, napkins, etc. Borrowing from the audience makes it seem like the magician hasn't had time to do anything sneaky to the item. This makes everything seem more magical!
Lovely Assistant: a lot of the card tricks (or any other mind reading type tricks) work well using a magical puppet or stuffed animal as your assistant. Try putting on an entire show where you aren't a magician at all... instead claim that you bought a puppet from an old gypsy woman and it turned out to be magic (you can make up a cool story to use as your patter). Have the puppet or stuffed animal "whisper" the answers into your ear. Having a puppet do all the work, may keep you from getting stage fright! I've included the puppet image on all the tricks that will work well this way.
Now... on with the show!
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