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Unix Commands Interview Questions
Questions Answers Views Company eMail

what is ls -ltd?

HCL,

5 13704

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

 10 12188

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

HCL, TCS,

1 6944

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 7710

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

IBM,

12 19883

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

Polaris,

11 17966

what is the difference between KILL and KILL -9?

Informatica, Nutanix,

5 26429

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

IBM,

4 35118

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

IBM,

12 20823

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

 3 6520

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

 1859

when we installing aix os the ssh installed default?

 2 4492

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

Vestas,

6 8727

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

PSI Data Systems,

8 22360

How to check the flavor of UNIX?

HCL, Syntel,

8 23766

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Un-Answered Questions { Unix Commands }

What does 'mkdir' command do in UNIX?

649

How do you grep recursively?

545

Can you enlist some commonly used network commands?

591

What are bash commands?

583

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

638




What is the use of awk command in unix?

566

Write a command to kill the last background job?

609

Write a command that will display files in the current directory, in a colored, long format.

670

Which command is used to find whether the system is 32 bit or 64 bit?

621

Describe the usage and functionality of the command rm –r * in unix?

813

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

553

What is the use of tee command?

560

How can you see the command line history?

578

What is grep short for?

545

Explain command to view process running?

609

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