UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since. By operating system, we mean the suite of programs which make the computer work. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops.
UNIX systems also have a graphical user interface (GUI) similar to Microsoft Windows which provides an easy to use environment. However, knowledge of UNIX is required for operations which aren't covered by a graphical program, or for when there is no windows interface available, for example, in a telnet session.
Unix Basic Concepts
- what is unix ?
- history of unix
- what is shell programming
- vi editor introduction
- what is kernel?
- file mangement in unix
- unix shell scripting
- what is shell?
Unix Commands List
unix practicle questions and answers
- write a program to add two number in unix
- write 1 to 2 numbers in reverse
- Enter 3 numbers and find out minimum and maximum numbers in unix
- to print first 10 lines from file in unix
- display lines between 20 and 30 of file x1
- To delete all special character from file f1.txt
- Remove duplicate lines from file x1
- To display line 1 to 5 from x1.
- To display line 1 to 5 from x1 and sort a line of file and also remove repeated lines.
- Replace all occurrences of 'SYBCA' with 'TYBCA' in 5th line of file f1.txt
- Count the occurrences of 'TYBCA' in studentlist file
- To run a utility x1 at 11:00 AM
- Display Number of process. [display process of user]
- Display lines starting from 10th line to the end of file x1
- Display all files in current directory where the 1st character is numeric and last character is not alphabet
- Display content of last modified file
- Display content of top 3 largest file in a working directory
- Display all files in current directory whose 1st character is is not digit
- To display inode of all files of current directory
- Count the number of character in 1st 3 lines of file f1
- Remove a file forcibly which do not have write permission
- To concatenate two files f1 and f2 including some text to be inserted from keyboard after content of f1. Cat f1 f2
- Remove directory tree dir/dir2/dir3 using single command
- Display last word of each line from a file x1
- Display number of words in 40 to 60 of file f1.txt
- Display all lines that stats with 'let' from a file x1. And the letter l, e or t may be in any case
- Replace 'kernel' with 'kernel architecture' using remember pattern of sed utility
- Count the frequency of users who are logged in from more than one terminal
- Display starting in upper case of the file in f1.txt
- To display first 6 lines from file x1
- Display lines beginning either with alphabet or digit from file x1
- Display lines that do not contain "unix".
- Display lines which are not starting with 2 at beginning
- Write a command to display all file name containing only digits in filename
- To display those lines in between 25 and 50 having pattern 'unix' in it
- Display lines before a line that contain pattern 'xyz' in file f1.txt
- Find out the number of the character '?' occur in file f1.txt
- To count the number of words in line 40 through 60 of file f1.txt
- count the number of blank lines in file f1
- count the number of blank lines in between 10 and 20 of x1
- display lines having at least one * character in file x1
- Display the directory listing
- Display files having read and write permission for the group
- Write a command to substitute doshi with desai
- To replace tybca with TYBCA in input file in.sh and write those lines to output file out.sh
- To display occurrences of 'BCA' in file x1
- To replace all occurrences of 'she' with 'he' and 'hi' with 'hello'
- To print lines with line nos. which contain "marketing".
- Display lines which starts with 'The'
- Delete all vowels from file x1
Unix Interview Questions
- top 12 unix interview questions and answers part 8
- top 10 unix interview questions and answers part 7
- unix interview questions and answers part 5
- unix interview questions and answers part 6
- top 25 gred/sed interview questions and answers 2021
- unix interview questions and answers part 4
- unix interview questions and answers part 3
- unix interview questions and answers part 2
- unix interview questions and answers part 1
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