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

Unix Interview Questions

Questions Answers Views Company eMail

What does iostat do?

IBM,

4 12122

What are the read or write or execute bits on a directory mean?

2 5753

How do you list the files in an UNIX directory while also showing hidden files?

6 14805

How do you execute a UNIX command in the background?

6 17440

What UNIX command will control the default file permissions when files are created?

4 11058

Explain the read, write, and execute permissions on a UNIX directory.

5 14391

the difference between a soft link and a hard link?

6 13162

Give the command to display space usage on the UNIX file system.

6 12623

Explain iostat, vmstat and netstat.

CTS, Wipro,

3 23504

How would you change all occurrences of a value using VI?

4 15782

Give two UNIX kernel parameters that effect an Oracle install

Oracle,

3 11158

Briefly, how do you install Oracle software on UNIX.

2 11368

In Unix inter process communication take place using?

2 11903

what is the process id for kernell process

3 7086

what is the very first process created by kernell

5 12112

Un-Answered Questions { Unix }

What is regular file in unix?

849

How to display no of records in oracle using unix command?

1133

How do I delete files older than 2 days unix?

925

What does the swapping system do if it identifies the illegal page for swapping?

1015

How do I create a directory in unix?

905

What is wild-card interpretation?

1009

Explain the performance differences between user-space threads and kernel-supported threads.?

1160

Name the key features of the bourne shell.

861

What are data structures that are used for Demand Paging?

954

What are the events done by the Kernel after a process is being swapped out from the main memory?

2564

What is meant by u-area?

828

Explain similarities between thread and process?

942

Where is the socket located?

855

What is the ‘nohup’ in unix?

886

Why is awk called awk?

1031

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