Shell Scripting Interview Questions

Unix Shell Scripting Interview Questions
1.) In shell scripting How to indentify that the previous command was run successfully?
2.) How will you write a shell script to connect to SQL database?
3.) What does UID and GID signify?
4.) What are the different security mechanisms available in UNIX?
5.) What are the different types of shells available in UNIX?
6.) how many users have logged in and logged out in last five or 10 minutes
7.) How do you search the string for vowel's occurrence and number of occurrences of each vowel
8.) What is make used for? How is it different from a shell script?
9.) How to compare floating point number in shell scripting ?
10.) How to delete a word from a file using shell scripting???
11.) How to extract the second row of a text-file?
12.) How to compare two floating point numbers ?
13.) How to compress files by using shell scripting
14.) What are the steps to take files from unix server to windows?
15.) How to find see the file which is created today,s date with time after 10 a.m to 5 p.m?
16.) What is the basic difference u find between a shell script and perl.I mean the advantages of one over
17.) What is use of "cut" command ?Give some examples. Can we use "awk" or "sed"
18.) How Connect to a Database in Shell Programming?Please tell me Step by Step?
19.) What is this line in the shell script do #!/bin/ksh?
20.) Write a shell script to identify the given string is palindrome or not?
21.) What is the difference between writing code in shell and editor?
22.) What is INODE?
23.) What is the difference between a 'thread' and a 'process'?
24.) What does $# stand for?
25.) What is $*?
26.) If you have a string "one two three", Which shell command would you use to extract the strings?
27.) What is the difference between a shell variable that is exported and the one that is not exported?
28.) How will you list only the empty lines in a file (using grep)?
29.) How do you schedule a command to run at 4:00 every morning?
30.) How do u open a read only file in Unix?
31.) What are the different kinds of loops available in shell script?

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