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

Unix Commands Interview Questions

Questions Answers Views Company eMail

what is ls -ltd?

HCL,

5 15883

what is the command to print last 8 lines of any text file.

10 14950

How to install scsi driver in unix? give me explanation clearly?

HCL, TCS,

1 7943

Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance

TCS,

3 9040

How i'll delete a particular line from the file? Please give answer as soon as possible. Thanks in advance.

IBM,

12 23518

How to display a file name which has zero bytes in size.

Polaris,

11 21528

what is the difference between KILL and KILL -9?

Informatica, Nutanix,

5 28630

what is the difference between SED and GREP ? Which one is more better and why?

IBM,

4 36919

how to find the 51th record of a file containing 100 records in unix.

IBM,

12 24943

If JFS file system is 100% full how we can increase the file system ?

3 8047

What is shrinking file system in AIX where it actually resides?

2439

when we installing aix os the ssh installed default?

2 5476

Where LOG fiels resides in AIX and pls tel me how to remove the log file

Vestas,

6 10990

write grep commands to select the lines that have exactly two characters

PSI Data Systems,

8 25177

How to check the flavor of UNIX?

HCL, Syntel,

8 26719

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Un-Answered Questions { Unix Commands }

Describe the zip/unzip command using gzip.

1162

What does touch command do in unix?

1433

What is the functionality of a top command?

1114

What is the use of find command in unix?

1159

Explain the steps that a shell follows while processing a command.

1238

Which command should you use to find the remaining disk space in unix server?

1316

How do I use grep to search for a file?

1059

What is the command to compare two files in unix?

1127

What's a command word?

1182

Explain how to use grep command to list find the records of a file containing 10 different strings?

1076

What does pipe () return?

1080

What does the metacharacter mean?

1141

Give the command for finding the current date.

1120

What is the comma to show the space allocation of files?

1094

What is the use of awk command in unix?

1136

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