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Tuesday, March 31, 2015

WhatsApp Calling feature now Available on Android, coming soon for iOS and WP users

 Sumit Kar     March 31, 2015     Internet, Technology, WhatsApp     No comments   



WhatsApp Calling Feature, Calling, WhatsApp, Sumit Kar, RJ Varun





If you've been sitting, wishing and waiting for your Android handset to let you make free data-based calls, then today's your lucky day. Android users can finally make voice calls on WhatsApp. The feature was there from the version 2.11.528 but thanks to a quiet but major internal update which made it possible for all users to get the most awaited feature. The feature has been teased for months, with the update hitting select users a month ago. Now, however, it seems it's available to all, with the latest version of WhatsApp offering a new, cleaner layout, with three tabs for Calls, Chats, and Contacts. As you'd expect, you simply click the Calls tab and select a contact to start talking.





The company has not yet confirmed about the Update officially. I think WhatsApp will let everyone know about the feature through their official blog.





Voice calling for the app should also be coming to iOS and Windows Phone in the near future. It should also be noted that these are app-to-app voice calls, unlike previous version of WhatsApp which have allowed users to call contacts by simply switching to their smartphone's regular mobile services.





Calling













So how does it work? 


I gave it a whirl over here in Kolkata(India), calling my friends Shreya Roy (Kolkata) and Sayan Chakrabarti in Manipal, Karnataka. Though the quality was clear, there were a couple of technical glitches. On one call, there was a delay of a couple of seconds, and on another, Arijit complained about an annoying echo, while RJ Varun Da (Power FM) said the WhatsApp voice calling feature is working better that any other VoIP services he use on 2G network. Received a call from Prodosh Dutta and the sound clarity was good. However, there are some problems, those small problems could be early teething problems, and similar issues are typical with other VOIP services. 


While calling my friends I found that those using Windows Phone, Symbian S40/S60 or iOS could not be reached.





WhatsApp Calling feature now Available on Android, coming soon for iOS and WP users





While writing this the current version of WhatsApp is 2.12.19 








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 Sumit Kar     March 31, 2015     No comments   

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Saturday, March 28, 2015

Red Layered Hibiscus

 Sumit Kar     March 28, 2015     Photography     No comments   





Red Layered Hibiscus , Sumit Kar, SumitKar.in, TimusRak
Red Layered Hibiscus 


Hibiscus is a genus of flowering plants in the mallow family, Malvaceae. It is quite large, containing several hundred species that are native to warm-temperate, subtropical and tropical regions throughout the world. Member species are often noted for their showy flowers and are commonly known simply as hibiscus, or less widely known as rose mallow. The genus includes both annual and perennial herbaceous plants, as well as woody shrubs and small trees. The generic name is derived from the Greek word ἱβίσκος (hibískos), which was the name Pedanius Dioscorides gave to Althaea officinalis.





Text via: Wikipedia


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Black and White Shadow

 Sumit Kar     March 28, 2015     Photography     No comments   



Black and White Shadow, www.sumitkar.in, timusrak





In the beginning it was all black and white. But now things are not always quite so simple. Some people like to say one thing and mean another. And me being who I am, I'm very straightforward. Everything is very black and white for me. I don't really like playing mind games...


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Tuesday, March 24, 2015

Fibonacci Range [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter the
range"


read r


a=0


b=1


c=1


echo "Fibonacci
series:\n"


echo "$a $b
\c"


while [ $c -lt $r ]


do


c=`expr $a + $b`


if [ $c -le $r ]


then


echo "$c \c"


fi


a=$b


b=$c


done


echo "\n"











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Fibonacci Series generator [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter the Number of Terms"


read n


a=0


b=1


count=1


n1=`expr $n - 2`


if [ $n -eq 1 ]


then


echo "The
Fibonacci series is:"
$a


elif [ $n -eq 2 ]


then


echo "The
Fibonacci series is:"
$a $b


else


echo "The
Fibonacci series is:"


echo "$a $b
\c"


while [ $count -le $n1 ]


do


c=`expr $a + $b`


echo "$c \c"


a=$b


b=$c


count=`expr $count +
1`


done


fi


echo "\n"











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Factorial of a Number [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter a
number"


read n


f=1


if [ $n -eq 0 ]


then


echo "Factorial
is: 1"


else


while [ $n -ge 1 ]


do


f=`expr $f \*
$n`


n=`expr $n - 1`


done


echo "Factorial
is:"
$f


fi





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To the Power [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter the
Value of x"


read x


echo "Enter the
Value of y"


read y


r=1


while [ $y -gt 0 ]


do


r=`expr $x \*
$r`


y=`expr $y - 1`


done


echo "The value
of x^y is:"
$r








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Frequency of a Character in a String [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



clear


echo "Enter the
String:\c"


read str


echo "Enter the
character:\c"


read ch


n=0


i=`expr
"$str" : ".*"`





while [ $i -ne 0 ]


do


 m=`echo $str|cut -c $i`


 if [ "$m" = "$ch" ];then


 
n
=`expr $n + 1`


 fi


 i=`expr $i - 1`


done





echo "The
frequency is :"
$n


 





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Calculator [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



clear


ans=Y


while [ "$ans" = "Y" ]


do


clear


echo "*****MENU*****"


echo "1.ADD"


echo "2.SUBSTRACT"


echo "3.MULTIPLY"


echo "4.DIVIDE"


echo "5.MOD"


echo "0.EXIT"


echo "Enter your
Choice"


read ch


case $ch in


1) echo "Enter the
1st number"


  
read num1


  
echo "Enter the 2nd number"


  
read num2


  
s
=`expr $num1 + $num2`


  
echo "The result:"$s;;


2) echo "Enter the
1st number"


  
read num1


  
echo "Enter the 2nd number"


  
read num2


  
s
=`expr $num1 - $num2`


  
echo "The result:"$s;;


3) echo "Enter the
1st number"


  
read num1


  
echo "Enter the 2nd number"


  
read num2


  
s
=`expr $num1 \* $num2`


  
echo "The result:"$s;;


4) echo "Enter the
1st number"


  
read num1


  
echo "Enter the 2nd number"


  
read num2


  
s
=`expr $num1 / $num2`


  
echo "The result:"$s;;


5) echo "Enter the
1st number"


  
read num1


  
echo "Enter the 2nd number"


  
read num2


  
s
=`expr $num1 % $num2`


  
echo "The result:"$s;;


0) exit;;


*) echo "WRONG
CHOICE"
;;


esac





echo "Do you want
to continue?(Y/N)"


read ans


done





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Display the Calendar [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



clear





echo " Enter the
Year: \c"


read year


echo " Enter the
Month: \c"


read month


m=0


case "$month" in


1|jan) m=1;;


2|feb) m=2;;


3|mar) m=3;;


4|apr) m=4;;


5|may) m=5;;


6|jun) m=6;;


7|jul) m=7;;


8|aug) m=8;;


9|sep) m=9;;


10|oct) m=10;;


11|nov) m=11;;


12|dec) m=12;;


*) echo $month  "is not a valid Month! Showing
Calendar for "
$year ;;





esac





if [ $m -ne 0 ]


then


cal $m $year


else


cal $year


fi











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Find a Pattern from a File [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter
pattern to be searched:\c"


read pname


echo "Enter file
name :\c"


read fname


echo "Search for
$pname from file $fname:"


grep "$pname" $fname








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Resource Test [Shell Program]

 Sumit Kar     March 24, 2015     Shell Programming     No comments   



echo "Enter the
Resource name"


read fname


if ( test -s $fname )


then


ls -l $fname


if ( test -d $fname )


then


echo "It is a
directory"


else


echo "It is a
file"


fi


if ( test -r $fname )


then


echo "It is a
readable"


fi


if ( test -w $fname )


then


echo "It is
writable"


fi


if ( test -x $fname )


then


echo "It is
executable"


fi


else


echo "No such
resource present"


fi





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