Write a linux shell program to perform string manipulation

To perform string manipulation

Code:

clear 

echo --------------------------------------------- 

echo '\tString Manipulation' 

echo --------------------------------------------- 

echo Enter the String1 

read s1 

echo Enter the String2 

read s2 

s3=$s1$s2 

len=$(expr length $s3) 

lstring=$(expr $s3 | tr '[:upper:]' '[:lower:]') 

ustring=$(expr $s3 | tr '[:lower:]' '[:upper:]') 

echo "\nConcatinated String : $s3" 

echo String Length : $len 

echo String in Lowercase : $lstring 

echo String in Uppercase : $ustring 

Output:

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

String Manipulation 

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

Enter the String1 

as 

Enter the String2 

WIN 

Concatinated String : asWIN 

String Length : 5 

String in Lowercase : aswin 

String in Uppercase : ASWIN