Shell Scripting interview questions and answers for freshers and experienced pdf free download

1. What is shell scripting?
2. State the advantages of Shell scripting?
3. What are the disadvantages of shell scripting?
4. Explain about the slow execution speed of shells?
5. Give some situations where typing error can destroy a program?
6. Explain about return code?
7. What are the different variables present in Linux shell?
8. Explain about GUI scripting?
9. Explain about echo command?
10. Explain about Stdin, Stdout and Stderr?
11. Explain about sourcing commands?
12. Explain about debugging?
13. Explain about Login shell?
14. Explain about non-login shell files?
15. Explain about shebang?
16. Explain about the Exit command?
17. Explore about Environment variables?
18. How do you define a function in a shell script?
19.  How do  you read keyboard input in shell scripts?
20. How does a case statement look in shell scripts?
21. How do you write a while loop in shell?
22. What is the difference between writing code in shell and editor?
22. Write a shell script to identify the given string is palindrome or not?
23. How do you read keyboard input in shell scripts?
24. What is the difference between $$ and $!?
25. What is the difference between $* and $@?
26. What is the difference between grep and egrep?