unix

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

• ls command in unix
• cat command in unix

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

any questions you can ask me in comment box