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Unix Commands Interview Questions
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Can you explain a little bit about command substitution?

 614

Describe the zip/unzip command using gzip.

 615

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

 650

Explain ‘library functions’ with respect to unix commands?

 606

Can you write a command to erase all files in the current directory including all its sub-directories?

 1 922

What is the command to find hidden files in the current directory?

 589

What is the unix command to confirm a remote host is alive or not?

 594

What do chmod, chown, chgrp commands do?

 644

What is the command to find maximum memory taking process on the server?

 676

Explain mount and unmount command.

 623

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

 591

Name the general commands in using unix os for a beginner?

 628

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

 600

What is the comma to display different lines that are found when compare two files?

 597

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

 562

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Un-Answered Questions { Unix Commands }

What is unix command?

587

What are file commands?

657

What's a command word?

593

What is command substitution?

627

What are reported commands?

570




What are bash commands?

601

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

804

Why is it called a shebang?

575

Name the unix command to find how many days the server has been up.

612

What is the pipe command?

586

What is the difference between awk and grep?

562

What is .sh file?

624

Which command can you use to find the currently running process in unix server?

592

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

635

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

665

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