Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

What difference between cmp and diff commands?

1307

What is the difference between cat and more command?

1303

Write a command to kill the last background job?

1107

Which command is used to delete all files in the current directory and all its sub-directories?

1267

Write a command to display a file’s contents in various formats?

1214

What will the following command do?

1125

What is the use of the command 'ls -x chapter[1-5]' ?

1216

Is ‘du’ a command? If so, what is its use?

1155

List the system calls used for process management?

1093

explain about the initial process sequence while the system boots up?

1052

How would you kill a process?

1030

What is the working set of a process?

1026

What is the window of the working set of a process?

1070

Explain kernal and shell?

1072

Difference between the fork() and vfork() system call?

1012

Un-Answered Questions { Unix }

How many types of files are there in unix?

992

Differentiate cmp command from diff command.

1175

Explain how do you create special files like named pipes and device files?

947

What are hidden files in unix?

998

How to write the program on full-duplex communication on bidirectional?

1040

Why is it called a shebang?

1193

What are the devices represented in unix?

951

Explain about unix basic commands

Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1223

What is unix ipc?

1016

What is disk block allocation in unix?

960

How do I show only directories in unix?

1074

What is grep|sort give example?

900

What is tilde unix?

1038

How do you change directories in unix?

980

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