GTU OS Program - 10

10. Write a shell script to check entered string is palindrome or not.

Complete code

echo "Enter the string to check: "
read str
len=`echo $str | wc -c`
len=`expr $len - 1`
i=1
j=`expr $len / 2`
while test $i -le $j
do
        k=`echo $str | cut -c $i`
        l=`echo $str | cut -c $len`
        if test $k != $l
        then
                echo "String is not Palindrome"
                exit
        fi
        i=`expr $i + 1`
        len=`expr $len - 1`
done
echo "String is Palindrome"

Interpreting the palindrome.sh file and executing it in terminal

tkanu025@hp:~/lab_solutions$ chmod +x palindrome.sh
tkanu025@hp:~/lab_solutions$ ./palindrome.sh
Output

gtu os lab manual,

os GTU Practical,

operating system Programs,

Operating system shellscript programs,

Gtu study material 3140705,

OS 3140702,

os practical list,

shell script programming,

gtu os practical,

os lab solution gtu

Comments

Post a Comment

YouTube

Popular posts from this blog

GTU OOP Program - 21

Image
21). Write a program to create a file name 123.txt, if it does not exist. Append a new data to it if it already exist. write 150 integers created randomly into the file using Text I/O. Integers are separated by space. import java.io.*; public class Program_21 { public static void main(String[] args) { File file = new File("program_21.txt"); if (file.exists()) { System.out.println("File already exists"); System.exit(0); } try (PrintWriter output = new PrintWriter(file);) { // writing 150 integers created randomly to file for (int i = 0; i < 150; i++) { output.print(((int) (Math.random() * 400) + 1) + " "); } System.out.println("File program_21.txt created Succesfully!"); } catch (FileNotFoundException fnfe) { System.out.println("Cannot create the file"); fnfe.printStack...
Get Details

GTU OS Program - 3

Image
3. Write a shell script to generate marksheet of a student. Take 3 subjects, calculate and display total marks, percentage and Class obtained by the student. Make a file called marksheet.sh using vim. If you want a full guide to vim than you can check this post. tkanu025@hp:~/lab_solutions$ vim marksheet.sh When you will hit enter than it will open a window like the one below. This is an editor and Here you can write your code. Press i to enter into the insert mode Write full code there like this echo "Enter marks(out of 30) of " read -p "Subject 1: " s1 read -p "Subject 2: " s2 read -p "Subject 3: " s3 sum=`expr $s1 + $s2 + $s3` echo "Sum of marks of 3 subjects is : "$sum per=`expr $sum \* 10 / 9` echo "Percentage: "$per if [ $per -ge 60 ] then echo "you got Distinction" elif [ $per -ge 50 ] then echo "you got First class" elif [ $per -ge 40 ] then ...
Get Details

GTU OOP Program - 1

Image
1. Write a program that displays Welcome to Java, Learning Java is fun. //program that every developer loves to execute class Practical_01 { public static void main(String args[]) { System.out.println("Welcome to Java, Learning Java is fun."); } } Output When you compile and run your program you will get the output as  Welcome to Java, Learning Java is fun. //program that every developer loves to execute This is a comment. Like most other programming language java also allows us to write comment which will not be executed while running the program. Java supports three types of comments single line comment , multiline comment s and documentation comment. Above comment is single line comment. class Practical_01 { Here, ➡ class is a keyword which declares the new class. ➡ Practical_01 is the name of class which is also known as identifier. ➡ The entire class definition, includi...
Get Details